Safe-Lock Plastic Containers

Abstract

The connecting part that links the main body and the lid together can be easily cut open, allowing the lid attached to the main body to be easily opened. [Solution] The present invention relates to a safe-lock container (100) having a main body (10) for holding contents, a lid (20) that seals and closes on the top of the main body, and a connecting part (30) that integrally connects the main body and the lid, wherein the connecting part (30) has two incision lines (first incision line and second incision line) (31, 32) forming two incision pieces (first incision piece and second incision piece) (41, 42), the first incision line (31) and the second incision line (32) are formed offset vertically from each other, a first cut line (33) is formed between the first incision line (31) and the outer circumference of the main body (10), a second cut line (34) is formed between the first incision line (31) and the second incision line (32), and a third cut line (35) is formed between the second incision line (32) and the outer circumference of the lid (20). Furthermore, in this invention, three incised pieces (41, 42, 43) are formed in the connecting portion (30).

Description

TECHNICAL FIELD

[0001] The present invention relates to a plastic container for packaging various side dishes and food products. More specifically, the present invention relates to a safe-lock container having a structure that prevents a third party from opening the plastic container holding side dishes and food before the final consumer opens it.

BACKGROUND ART

[0002] Various side dishes and food products are distributed after being placed in and packaged in disposable plastic containers. In particular, after the widespread adoption of delivery culture, most food products are delivered to orderers after being placed in and packaged in disposable plastic containers.

[0003] Plastic containers packaged with side dishes and food should be safely delivered or sold to final consumers. It is absolutely unacceptable for foreign matter or harmful substances to be intentionally or mistakenly introduced into the containers during the distribution process. Accordingly, safe-lock containers having a structure that prevents third parties from opening the plastic containers holding side dishes and food before the final consumer opens them have been developed and used in various forms.

[0004] Safe-lock containers are manufactured with a structure that leaves traces if anyone opens the container before the final consumer opens it, so that the final consumer can confirm whether the container product was safely packaged during the distribution process.

[0005] Most safe-lock containers consist of a container body for holding contents and a lid coupled to the body to seal the contents. The lid, once coupled to the body, is structured such that it cannot be opened by hand without using a special tool, and a method is adopted in which the lid is opened from the body by separating the body and the lid in another way.

[0006] Patent documents 1 (US9,216,849B2) and 2 (US10,457,449B2) disclose safe-lock containers. These patents describe a disposable plastic container in which an upper body and a lower body, i.e., a body and a lid, are integrally molded. The method involves closing the lid to the body to seal it, and then cutting the connecting portion between the body and the lid to open the lid. In other words, the container is sealed so that the lid cannot be opened without using a special tool when the lid is attached to the body. To open the lid, a cut line is formed on the side of the container, i.e., the connecting portion between the body and the lid, and the connecting portion is cut along the cut line to separate the body and the lid before the lid can be opened. This method is very classical and has the problem that the entire connecting portion must be cut along the cut line.

[0007] Patent Document 3 (Korean Registered Patent No. 1417382) discloses a container in which the container body and cover are connected by a tap. This tap connects the container body and cover so that they can be cut off, and after removing the tap, the container body and cover can be separated and the container can be opened.

[0008] Furthermore, Patent Document 4 (Korean Registered Patent No. 1581017) discloses a food storage container that prevents foreign objects from being introduced, by removing the connecting part that connects the receiving part and the lid, thereby allowing the lid to be opened from the receiving part, preventing the food stored in the receiving part from being replaced or altered, and ensuring a tight seal between the lid and the receiving part to prevent the liquid from the food received in the receiving part from leaking out. However, the connecting part of this patent, like the tap in Patent Document 3, protrudes excessively outward, so when packaged products are stacked, it takes up a considerable amount of space.

[0009] In an attempt to solve the aforementioned drawbacks of the conventional technology, the inventors have developed a new safe-lock plastic container in which consumers can easily cut open the connecting part by hand to easily open the lid attached to the main body, the connecting part does not protrude outwards when the lid is attached to the main body and packaged, the space required for loading is reduced, and the amount of resin raw material used is also reduced. [Prior art documents] [Patent Documents]

[0010] [Patent Document 1] U.S. Patent Publication US9,216,849B2 [Patent Document 2] U.S. Patent Publication US10,457,449B2 [Patent Document 3] Korean Registered Patent Publication No. 1417382 [Patent Document 4] Korean Registered Patent Publication No. 1581017 [Overview of the Initiative] [Problems that the invention aims to solve]

[0011] The object of the present invention is to provide a safe-lock plastic container that allows the connecting portion that integrally connects the body and the lid to be easily cut open, thereby allowing the lid attached to the body to be easily opened.

[0012] Another object of the present invention is to provide a safe-lock plastic container in which, when the lid is attached to the body and packaged, the connecting portion does not protrude outwards, thereby reducing the loading space required during storage.

[0013] Another objective of the present invention is to develop a safe-lock plastic container that can reduce the amount of resin raw material used because the connecting portion does not protrude outwards.

[0014] All of the aforementioned and other objectives of the present invention can be achieved by the present invention, which is described in detail below. [Means for solving the problem]

[0015] The present invention provides a safe-lock container comprising a body (10) for holding contents, a lid (20) that closes to seal the top of the body (10), and a connecting part (30) that integrally connects the body (10) and the lid (20), wherein once the lid (20) is closed to the body (10), the lid (20) cannot be opened by hand, and the lid (20) is opened by cutting the connecting part (30), wherein the connecting part (30) has two cutting lines (a first cutting line and a second cutting line) Two incision pieces (first incision piece and second incision piece) (41, 42) are formed by lines (31, 32), the first incision line (31) and the second incision line (32) are formed offset vertically from each other, a first cut line (33) is formed between the first incision line (31) and the outer circumference of the main body (10), a second cut line (34) is formed between the first incision line (31) and the second incision line (32), and a third cut line (35) is formed between the second incision line (32) and the outer circumference of the lid (20).

[0016] The two aforementioned incision lines (first incision line and second incision line) (31, 32) refer to lines that have been completely cut, and the three aforementioned cutting lines (first cutting line to third cutting line) (33, 34, 35) refer to lines that have been punched along the dotted lines.

[0017] When the lid (20) is closed (joined) to the main body (10), a folding line (36) is formed parallel to it so that the connecting part (30) folds. The two incision lines (31, 32) are cut when attempting to separate the lid (20) from the main body (10), but the folding line (36) is formed so that the connecting part (30) folds without being cut.

[0018] The Safe-Lock plastic container (100) is supported integrally by three perforations (33, 34, 35) formed in the connecting portion (30), which connect the main body (10) and the lid (20). That is, when all three perforations (33, 34, 35) are cut, the main body (10) and the lid (20) are separated from each other.

[0019] In order to open the lid (20) of the packaged container, the first incision piece (41) located at the center is pulled by hand to incise the tear lines on both sides (the first and second tear lines) (33, 34). After that, the second incision piece (42) is pulled by hand to incise the third tear line (35). When all three tear lines (33, 34, 35) are incised, a corner of the separated lid (20) is pulled by hand to open the lid (20) from the main body (10).

[0020] Since the two incision pieces (41, 42) are completely incised by the respective incision lines (31, 32), when the container is packaged, the incised ends of the incision pieces (41, 42) maintain a slightly outwardly opened configuration. Such a structure allows the incised ends of the incision pieces (41, 42) to be pulled by hand to split the connecting portion (30) into two parts, so that the lid (20) can be easily opened from the main body (10).

[0021] In addition, in the safety-lock container (100) of the present invention, when the lid (20) is coupled to the main body (10) for packaging, the connecting portion (30) does not protrude outward, so that the stacking space during stacking can be reduced, and thus the resin raw material used can be saved.

[0022] Another aspect of the present invention is a container having three incision pieces (41, 42, 43) in the connecting portion (30). In this aspect, three incision pieces (the first to third incision pieces) (41, 42, 43) are formed in the connecting portion (30) by three incision lines (the first to third incision lines) (51, 52, 53), the first incision line (51) to the third incision line (53) are formed to be offset from each other in a zigzag manner, a first tear line (55) is formed between the first incision line (51) and a certain outer periphery of the main body (10), a second tear line (56) is formed between the first incision line (51) and the second incision line (52), a third tear line (57) is formed between the second incision line (52) and the third incision line (53), and a fourth tear line (58) is formed between the third incision line (53) and a certain outer periphery of the main body (10).

[0023] The three incision lines (the first to third incision lines) (51, 52, 53) refer to fully cut lines, and the four tear lines (the first to fourth tear lines) (55, 56, 57, 58) refer to lines punched along dotted lines. Also in this embodiment, when the lid (20) is closed (coupled) to the main body (10), folding lines are formed in parallel so that the connecting portion (30) can be folded.

[0024] The container (100) of this embodiment integrally supports the main body (10) and the lid (20) by the four tear lines (55, 56, 57, 58) formed on the connecting portion (30). That is, when all four tear lines (55, 56, 57, 58) are torn, the main body (10) and the lid (20) are separated from each other.

[0025] To open the lid (20) of the packaged container, the second incision piece (42) located at the center is pulled by hand to tear the tear lines on both sides (the second and third tear lines) (56, 57). After that, the first incision piece (41) is pulled by hand to tear the first tear line (55), and the third incision piece (43) is pulled by hand to tear the fourth tear line (58). When all four tear lines (55, 56, 57, 58) are torn, a corner of the lid (20) is pulled by hand to open the lid (20) from the main body (10).

[0026] Since the three incision pieces (41, 42, 43) are fully cut by the respective incision lines (51, 52, 53), when the container is packaged, the cut ends of the incision pieces (41, 42, 43) maintain a slightly outwardly opened configuration. With such a structure, the cut ends of the incision pieces (41, 42, 43) can be pulled by hand to split the connecting portion (30) into two, so that the lid (20) can be easily opened from the main body (10).

[0027] Hereinafter, the specific contents of the present invention will be described in detail below with reference to the accompanying drawings.

Effects of the Invention

[0028] The present invention provides a safe-lock plastic container in which the connecting portion that integrally connects the body and the lid can be easily cut open, the lid attached to the body can be easily opened, the connecting portion does not protrude outwards when the lid is attached to the body and packaged, the loading space during storage can be reduced, and the amount of resin raw material used can be reduced because the connecting portion does not protrude outwards. [Brief explanation of the drawing]

[0029] [Figure 1] This is a schematic perspective view of a safe-lock container (100) according to one specific example of the present invention, with the lid (20) in the open position. [Figure 2] This is a schematic perspective view of the container (100) in Figure 1 with the lid (20) closed. [Figure 3] This is an enlarged plan view showing the connecting portion (30) in Figure 1 in detail. [Figure 4] This is a schematic cross-sectional view taken along the line A-A' in Figure 2. [Figure 5] This is a schematic perspective view of a safe-lock container (100) according to another specific example of the present invention with the lid (20) in the open position. [Figure 6] This is a schematic perspective view of the container in Figure 5 with the lid (20) closed. [Figure 7] Figure 5 is a schematic partial side view illustrating the connecting portion (30) of the container (100). [Modes for carrying out the invention]

[0030] The present invention relates to a disposable plastic container for packaging various side dishes and food items, and more particularly to a safe-lock plastic container having a structure that prevents a third party from opening the plastic container containing the side dishes or food items before the end consumer opens it.

[0031] A safe-lock container consists of a container body for holding contents and a lid that is attached to the body to seal the contents. The body and lid are connected by a connecting part and molded as a single unit. The connecting structure for attaching the lid to the body to seal it is a publicly known technology and can be easily implemented by those skilled in the art to which the present invention belongs.

[0032] A safe-lock container is designed so that once the contents are placed inside and the lid is closed, the lid cannot be opened by hand alone without the use of another tool. Therefore, in order to open a safe-lock container by hand, the connecting part between the body and the lid must be cut, regardless of the method used. Once the connecting part is cut, the body and the lid are separated, and the lid can be easily opened by pulling it by hand. Thus, the method used to cut the connecting part is the core technology of a safe-lock container.

[0033] The present invention is described as a first specific example (Figure 1-4) in which two incised pieces (41, 42) are formed on the connecting portion (30) of the container, and a second specific example (Figure 5-7) in which three incised pieces (41, 42, 43) are formed.

[0034] Figure 1 is a schematic perspective view of a safe-lock container (100) according to a first specific example of the present invention with the lid (20) open; Figure 2 is a schematic perspective view of the container (100) of Figure 1 with the lid (20) closed; and Figure 3 is an enlarged plan view showing the connecting portion (30) of Figure 1 in detail.

[0035] A safe-lock plastic container, comprising a main body (10) for holding contents, a lid (20) that closes to seal the top of the main body (10), and a connecting part (30) that integrally connects the main body (10) and the lid (20), is already a known technology. In a safe-lock container, once the lid (20) is closed and joined to the main body (10), it cannot be opened by hand, and a method is employed in which the lid (20) is opened by cutting open the connecting part (30).

[0036] A safe-lock container according to a first specific example of the present invention is a container (100) comprising a body (10) for holding contents, a lid (20) that closes to seal the top of the body (10), and a connecting part (30) that integrally connects the body (10) and the lid (20), wherein the connecting part (30) has two incision lines (first incision line and second incision line) (31, 32) which form two incision pieces (first incision piece and second incision piece) (4 1, 42) are formed, the first incision line (31) and the second incision line (32) are formed offset vertically from each other, a first cut line (33) is formed between the first incision line (31) and the outer circumference of the main body (10), a second cut line (34) is formed between the first incision line (31) and the second incision line (32), and a third cut line (35) is formed between the second incision line (32) and the outer circumference of the lid (20).

[0037] The two aforementioned incision lines (first incision line and second incision line) (31, 32) refer to lines that have been completely cut, and the three aforementioned cutting lines (first cutting line to third cutting line) (33, 34, 35) refer to lines that have been punched along the dotted lines.

[0038] When the lid (20) is closed (joined) to the main body (10), a folding line (36) is formed parallel to it so that the connecting part (30) folds. The two cutting lines (31, 32) are cut when attempting to separate the lid (20) from the main body (10), but the folding line (36) is formed so as to be folded without being cut. Since the folding line (36) should not be cut and should be formed so as to be folded for the connecting part (30), it is preferable that it be made so as not to be easily cut.

[0039] The Safe-Lock plastic container (100) is supported integrally by three perforations (33, 34, 35) formed in the connecting portion (30), which connect the main body (10) and the lid (20). In other words, when all three perforations (33, 34, 35) are cut, the main body (10) and the lid (20) are separated from each other.

[0040] To open the lid (20) of the packaged container, pull the first incision piece (41) located in the center with your hand to cut along the cut lines (first and second cut lines) (33, 34) on both sides. Then, pull the second incision piece (42) with your hand to cut along the third cut line (35). Once all three cut lines (33, 34, 35) have been cut, pull the corner of the separated lid (20) with your hand to open the lid (20) from the main body (10).

[0041] Since the two incision pieces (41, 42) are completely cut along their respective incision lines (31, 32), when the container is packaged, the cut ends of the incision pieces (41, 42) remain slightly open to the outside. This structure allows the lid (20) to be easily opened from the main body (10) by pulling the cut ends of the incision pieces (41, 42) by hand to separate the connecting part (30).

[0042] Furthermore, in the Safe-Lock container (100) of the present invention, when the lid (20) is attached to the main body (10) and packaged, the connecting part (30) does not protrude outwards, which reduces the loading space required when stacking, and thereby reduces the amount of resin raw material used.

[0043] Figure 4 is a schematic cross-sectional view taken along the line A-A' in Figure 2.

[0044] As shown in Figure 4, the periphery (corner) (21) of the lid (20) is inserted into the body (10). The surfaces where the body (10) and the lid (20) are joined vertically are inclined towards the inside of the container by an angle (θ), and once assembled, it is almost impossible to open the lid (20) by hand. In other words, once the lid (20) is closed on the body (10), it is formed in such a way that it is impossible to open the lid by hand alone without using another tool. Therefore, in order to open the lid (20), the connecting part (30) that connects the body (10) and the lid (20) must be cut and separated by any method, and then the lid (20) must be pulled open by hand. A second specific example of the present invention is a container in which three cut sections (41, 42, 43) are formed. Figure 5 is a schematic perspective view of the container (100) according to the second specific example with the lid (20) open, Figure 6 is a schematic perspective view of the container of Figure 5 with the lid (20) closed, and Figure 7 is a schematic partial side view illustrating the connecting portion (30) of the container (100) of Figure 5.

[0045] A second specific example of the present invention is a container having three incision pieces (41, 42, 43) in a connecting portion (30). This configuration is characterized in that three incision lines (first to third incision lines) (41, 42, 43) are formed in the connecting portion (30) by three incision lines (first to third incision lines) (51, 52, 53), the first to third incision lines (51) to the third incision lines (53) are formed offset from each other in a zigzag pattern vertically, a first cut line (55) is formed between the first incision line (51) and the outer circumference of the main body (10), a second cut line (56) is formed between the first incision line (51) and the second incision line (52), a third cut line (57) is formed between the second incision line (52) and the third incision line (53), and a fourth cut line (58) is formed between the third incision line (53) and the outer circumference of the main body (10).

[0046] The three incision lines (first to third incision lines) (51, 52, 53) refer to lines that have been completely cut, and the four cut lines (first to fourth cut lines) (55, 56, 57, 58) refer to lines that have been punched along the dotted lines. In this configuration as well, when the lid (20) is closed (joined) to the main body (10), the folding lines are formed parallel to each other so that the connecting part (30) folds.

[0047] In the second specific example, the container (100) has its body (10) and lid (20) supported together by four cut lines (55, 56, 57, 58) formed on the connecting part (30). That is, when all four cut lines (55, 56, 57, 58) are cut, the body (10) and lid (20) are separated from each other.

[0048] To open the lid (20) of the packaged container, pull the second incision piece (42) located in the center with your hand to cut along the cut lines (second and third cut lines) (56, 57) on both sides. Then, pull the first incision piece (41) with your hand to cut along the first cut line (55), and pull the third incision piece (43) with your hand to cut along the fourth cut line (58). Once all four cut lines (55, 56, 57, 58) have been cut, pull the corner on the lid (20) with your hand to open the lid (20) from the body (10).

[0049] Since the three incision pieces (41, 42, 43) are completely cut along their respective incision lines (51, 52, 53), when the container is packaged, the cut ends of the incision pieces (41, 42, 43) remain slightly open to the outside. This structure allows the lid (20) to be easily opened from the main body (10) by pulling the cut ends of the incision pieces (41, 42, 43) by hand to separate the connecting part (30).

[0050] Furthermore, in the Safe-Lock container (100) of the present invention, when the lid (20) is attached to the main body (10) and packaged, the connecting part (30) does not protrude outwards, which reduces the loading space required when stacking, and thereby reduces the amount of resin raw material used.

[0051] In the attached drawings 5 ​​and 6, the connecting portion (30) that connects the main body (10) and the lid (20) is formed on the short side of the container, but it can also be formed on the long side of the container.

[0052] Simple modifications or alterations of the present invention can be readily carried out by a person with ordinary skill in the art, and all such modifications or alterations fall within the scope of the present invention. [Explanation of Symbols]

[0053] 10 Main unit 20 Lid 21 Periphery (Angle) 30 Connecting part 31. First incision line 32. Second incision line 33 1st cut line 34 Second cut line 35 Third cutting line 36 Folding Line 41 1st incision piece 42 Second incision piece 43 Third incision piece 51 First incision line 52. Second incision line 53 Third incision line 55 1st cut line 56 2nd cut line 57 Third cutting line 58 4th cut line 100 containers

Claims

1. A safe-lock plastic container (100) comprising a main body (10) for holding contents, a lid (20) that closes to seal the top of the main body (10), and a connecting part (30) that integrally connects the main body (10) and the lid (20), wherein once the lid (20) is closed to the main body (10), the lid (20) cannot be opened by hand, and the lid (20) is opened by cutting open the connecting part (30), A safe-lock plastic container (100) characterized in that two incisions (first incision line and second incision line) (31, 32) are formed in the connecting portion (30) to form two incision pieces (first incision piece and second incision piece) (41, 42), the first incision line (31) and the second incision line (32) are formed offset vertically from each other, a first cut line (33) is formed between the first incision line (31) and the outer circumference of the main body (10), a second cut line (34) is formed between the first incision line (31) and the second incision line (32), and a third cut line (35) is formed between the second incision line (32) and the outer circumference of the lid (20).

2. The safe-lock plastic container (100) according to claim 1, characterized in that the two incision lines (first incision line and second incision line) (31, 32) are completely incised lines, and the three cut lines (first to third cut lines) (33, 34, 35) are lines punched along dotted lines.

3. The safe-lock plastic container (100) according to claim 2, characterized in that when the lid (20) is closed (joined) to the main body (10), the folding lines (36) are formed parallel to each other so that the connecting part (30) folds.

4. A safe-lock plastic container (100) comprising a main body (10) for holding contents, a lid (20) that closes to seal the top of the main body (10), and a connecting part (30) that integrally connects the main body (10) and the lid (20), wherein once the lid (20) is closed to the main body (10), the lid (20) cannot be opened by hand, and the lid (20) is opened by cutting open the connecting part (30), A safe-lock plastic container (100) characterized in that three incisions (first to third incisions) (51, 52, 53) (51, 52, 53) (51, 52, 53) (51, 52, 53) (51, 52, 53) (51, 52, 53) (51, 52, 53) (51, 52, 53) (53) (51, 52, 53) (53) (54) (4) (

5. The safe-lock plastic container (100) according to claim 4, characterized in that the three incision lines (first to third incision lines) (51, 52, 53) are completely incised lines, and the four cut lines (first to fourth cut lines) (55, 56, 57, 58) are punched lines along the dotted lines.

6. The safe-lock plastic container (100) according to claim 5, characterized in that when the lid (20) is closed (connected) to the main body (10), the folding lines are formed parallel so that the connecting part (30) folds.

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