Packing box

Abstract

The present invention provides a packaging box comprising: a side plate section having a first side plate, a second side plate, a third side plate, and a fourth side plate connected to each other; and a top plate section having a first top plate extending from one end of the first side plate, a second top plate extending from one end of the second side plate, a third top plate extending from one end of the third side plate, and a fourth top plate extending from one end of the fourth side plate; wherein the end portion of the first top plate and the end portion of the third top plate are overlapped at mutually corresponding positions so that one is stacked on top of the other, and when the second and fourth top plates are folded, their respective end portions are arranged to face each other so as to overlap on top of the first and third top plates, thereby forming the same plane without a step difference between the second and fourth top plates.

Description

Technology Field

[0001] The present invention relates to a packaging box capable of accommodating and packaging various objects to be packaged. Background Technology

[0002] According to Registered Patent Publication No. 10-2627225, the invention comprises: a side plate section having a first side plate, a second side plate, a third side plate, and a fourth side plate connected to each other; and a bottom plate section having a first bottom plate extending from one side in the longitudinal direction of the first side plate, a second bottom plate having an extension portion at the end of a main body section extending from one side in the longitudinal direction of the second side plate and first and second wing portions on both sides of the extension portion, a third bottom plate extending from one side in the longitudinal direction of the third side plate, and a fourth bottom plate extending from one side in the longitudinal direction of the fourth side plate; and a top plate section having a first top plate extending from the other side in the longitudinal direction of the first side plate, a second top plate extending from the other side in the longitudinal direction of the second side plate, a third top plate extending from the other side in the longitudinal direction of the third side plate, and a fourth top plate extending from the other side in the longitudinal direction of the fourth side plate.It further includes, wherein the second upper plate is configured such that a first assembly projection is provided at a longitudinal end and the end of the second upper plate coincides with the end of the first assembly projection, the first and third lower plates are symmetrically configured on both sides centered on the second lower plate, the first and third upper plates are symmetrically configured on both sides centered on the second upper plate, the first and second folding portions are formed by cutting the first and third upper plates, the fourth upper plate is configured such that a second assembly projection is provided at a longitudinal end and the end of the fourth upper plate coincides with the end of the second assembly projection, a second assembly hole is provided on the inside of the fourth side plate at a distance from the second assembly projection, the first and third upper plates are folded so as to face each other and the first and second folding portions are folded downward, the fourth upper plate is assembled to overlap the first and third upper plates, and as the first and second folding portions are folded downward, the A packaging box has been disclosed, characterized in that first and second coupling holes are formed at the first and second folding portions, the second assembly protrusion is inserted into the first and second coupling holes, and the second top plate is overlapped on the fourth top plate by inserting the first assembly protrusion into the second assembly hole, and the longitudinal end of the second top plate is positioned toward the second assembly hole with a gap at the boundary between the fourth top plate and the fourth side plate.

[0003] However, conventional packaging boxes have a step difference formed by the overlapping of the second and fourth top plates, and when attaching an invoice label to this section, there was a problem where the invoice label easily peeled off upon external impact due to reduced adhesion caused by unevenness of the adhesive surface. Prior art literature

[0004] Korean Registered Patent Publication No. 10-2627225 (Published Jan. 18, 2024) The problem to be solved

[0005] To solve the aforementioned problem, the present invention aims to provide a packaging box in which an invoice label does not easily peel off by maintaining a uniform adhesive surface when an invoice label is attached, such that a flat plane without a step difference is formed when the top plates on both sides of the uppermost part are folded. means of solving the problem

[0006] To achieve the aforementioned purpose, the present invention provides a packaging box comprising: a side plate section having a first side plate, a second side plate, a third side plate, and a fourth side plate connected to each other; and a top plate section having a first top plate extending from one end of the first side plate, a second top plate extending from one end of the second side plate, a third top plate extending from one end of the third side plate, and a fourth top plate extending from one end of the fourth side plate; wherein the end portion of the first top plate and the end portion of the third top plate are overlapped at mutually corresponding positions so that one is stacked on top of the other, and when the second and fourth top plates are folded, their respective end portions are arranged to face each other so that they overlap on top of the first and third top plates, thereby forming the same plane without a step difference between the second and fourth top plates.

[0007] Additionally, it may further include a bottom plate portion having a first bottom plate extending from the other end of the first side plate, a second bottom plate extending from the other end of the second side plate, a third bottom plate extending from the other end of the third side plate, and a fourth bottom plate extending from the other end of the fourth side plate.

[0008] Additionally, first and second assembly protrusions are provided on both sides of the end portion of the second upper plate, and third and fourth assembly protrusions are provided on both sides of the end portion of the fourth upper plate; the first and fourth assembly protrusions can be folded facing each other and fitted into a first assembly hole provided on the third upper plate, and the second and third assembly protrusions can be folded facing each other and fitted into a second assembly hole provided on the first upper plate.

[0009] Additionally, first and second seating protrusions are provided on both sides of the end portion of the first upper plate, and third and fourth seating protrusions are provided on both sides of the end portion of the third upper plate; a first support member provided on the second upper plate has a portion connected to the second upper plate and the remaining portion formed by cutting, and a second support member provided on the fourth upper plate has a portion connected to the fourth upper plate and the remaining portion formed by cutting, and the first and fourth seating protrusions can be fitted into a first insertion hole formed in the area where the first support member is detached when the first support member is bent, and the second and third seating protrusions can be fitted into a second insertion hole formed in the area where the second support member is detached when the second support member is bent.

[0010] In addition, the first and second support members can support the first and third plates by folding downward from the second and fourth plates, respectively, and positioning them at the bottom of the first and third plates.

[0011] In addition, a cut line may be formed on at least a portion of the bend line between the first side plate and the first top plate, and the bend line between the third side plate and the third top plate.

[0012] In addition, the above-mentioned incision line may be formed into a plurality of incision lines.

[0013] In addition, the above-mentioned cut lines may be formed at the center of the bend line between the first side plate and the first top plate and at the center of the bend line between the third side plate and the third top plate, respectively.

[0014] In addition, a cut line may be formed on at least one of the first to fourth side plates.

[0015] In addition, the above-mentioned cut lines may be formed on the second and fourth side plates. Effects of the invention

[0016] The present invention forms a flat plane without a step difference when the top plates on both sides of the uppermost part are folded, thereby maintaining a uniform adhesive surface when attaching an invoice label, so that the invoice label cannot be easily peeled off.

[0017] In addition, the present invention allows the first and second support members to stably support the first and third top plates from below.

[0018] In addition, the present invention can form a rigid connection structure between the second and fourth plates by fitting the first assembly projection of the second plate and the fourth assembly projection of the fourth plate into the first assembly hole of the third plate.

[0019] In addition, the present invention can form a rigid connection structure between the second and fourth plates by fitting the second assembly projection of the second plate and the third assembly projection of the fourth plate into the second assembly hole of the first plate.

[0020] In addition, the present invention can form a stable support structure for the first and third plates by fitting together the first seating projection of the first plate and the fourth seating projection of the third plate into the first insertion hole of the second plate.

[0021] In addition, the present invention can form a stable support structure for the first and third plates by fitting together the second seating projection of the first plate and the third seating projection of the third plate into the second insertion hole of the fourth plate.

[0022] In addition, the present invention allows for easy folding of the first and third top plates by forming a cut line at the center of each folding line between the first side plate and the first top plate, and between the third side plate and the third top plate. Brief explanation of the drawing

[0023] FIG. 1 is an unfolded view of a packaging box according to a preferred embodiment of the present invention. FIG. 2 is a drawing showing the state of the top plate portion before assembly according to a preferred embodiment of the present invention. FIG. 3 is a drawing showing the assembled state of the first top plate according to a preferred embodiment of the present invention. FIG. 4 is a drawing showing the assembled state of a third top plate according to a preferred embodiment of the present invention. FIG. 5 is a drawing showing the assembled state of the second top plate according to a preferred embodiment of the present invention. FIG. 6 is a drawing showing the assembled state of the fourth top plate according to a preferred embodiment of the present invention. FIG. 7 is a drawing showing a cut line according to a preferred embodiment of the present invention. Specific details for implementing the invention

[0024] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing the present invention, if it is determined that a detailed description of related known components or functions may obscure the essence of the present invention, such detailed description is omitted. Additionally, while preferred embodiments of the present invention will be described below, the technical concept of the present invention is not limited or restricted thereto and can be modified and implemented in various ways by those skilled in the art.

[0025] FIG. 1 is an unfolded view of a packaging box according to a preferred embodiment of the present invention, FIG. 2 is a drawing showing the state before assembly of the top plate portion according to a preferred embodiment of the present invention, FIG. 3 is a drawing showing the assembled state of the first top plate according to a preferred embodiment of the present invention, FIG. 4 is a drawing showing the assembled state of the third top plate according to a preferred embodiment of the present invention, FIG. 5 is a drawing showing the assembled state of the second top plate according to a preferred embodiment of the present invention, and FIG. 6 is a drawing showing the assembled state of the fourth top plate according to a preferred embodiment of the present invention.

[0026] As illustrated in FIGS. 1 to 6, the present invention may include a side plate (10), a top plate (20) connected to the side plate (10), and a bottom plate (30) connected to the side plate (10).

[0027] The side plate section (10) may include a first side plate (11), a second side plate (12), a third side plate (13), and a fourth side plate (14) that are connected to each other.

[0028] The top plate portion (20) may include a first top plate (21), a second top plate (22), a third top plate (23), and a fourth top plate (24).

[0029] The first top plate (21) may be extended from one end of the first side plate (11). The second top plate (22) may be extended from one end of the second side plate (12). The third top plate (23) may be extended from one end of the third side plate (13). The fourth top plate (24) may be extended from one end of the fourth side plate (14).

[0030] The first top plate (21) may be provided with a first seating projection (212a) and a second seating projection (212b) on both sides of the end portion.

[0031] The third top plate (23) may be provided with a third seating projection (232c) and a fourth seating projection (232d) on both sides of the end portion.

[0032] A first assembly hole (231a) may be provided in the inner area of ​​the third top plate (23), and a second assembly hole (211b) may be provided in the inner area of ​​the first top plate (21).

[0033] A cut line (CL) may be formed in the center of the bend line (BL) between the first side plate (11) and the first top plate (21). A cut line (CL) may be formed in the center of the bend line (BL) between the third side plate (13) and the third top plate (23).

[0034] The incision line (CL) may be formed as a multilayer incision line consisting of a first incision line (CL1), a second incision line (CL2), and a third incision line (CL3). Vertical incision lines may be formed on both sides of the first incision line (CL1), the second incision line (CL2), and the third incision line (CL3).

[0035] The bend line (BL) is shown as a dotted line in Fig. 1.

[0036] For example, when the first and third plates (21, 23) made of thick paper material are folded without a cut line, the first and third plates (21, 23) may not maintain a flat state and may lift upward due to the tensile force acting on the folded portion.

[0037] In contrast, the present invention can induce bending of the first and third top plates (21, 23) through the cut line (CL). Through the cut line (CL), upward lifting can be prevented when bending the first and third top plates (21, 23). Through the cut line (CL), the flat folded state of the first and third top plates (21, 23) can be maintained.

[0038] The second top plate (22) may be provided with a first assembly projection (221a) and a second assembly projection (221b) on both sides of the end portion.

[0039] The fourth top plate (24) may be provided with a third assembly projection (241c) and a fourth assembly projection (241d) on both sides of the end portion.

[0040] The second top plate (22) may be provided with a first support member (222a) in an inner area. The first support member (222a) may have a bending line (BL) portion on one side connected to the second top plate (22), while the remaining perimeter excluding the bending line (BL) may be formed by cutting. Accordingly, when the first support member (222a) is bent, a first insertion hole (223a) may be formed in the area from which the first support member (222a) is detached.

[0041] The fourth top plate (24) may be provided with a second support member (242b) in an inner area. The second support member (242b) may have a bending line (BL) portion on one side connected to the fourth top plate (24), while the remaining perimeter excluding the bending line (BL) may be formed by cutting. Accordingly, when the second support member (242b) is bent, a second insertion hole (243b) may be formed in the area where the second support member (242b) is detached.

[0042] The lower plate portion (30) may include a first lower plate (31), a second lower plate (32), a third lower plate (33), and a fourth lower plate (34).

[0043] The first bottom plate (31) may be extended from the other end of the first side plate (11). The second bottom plate (32) may be extended from the other end of the second side plate (12). The third bottom plate (33) may be extended from the other end of the third side plate (13). The fourth bottom plate (34) may be extended from the other end of the fourth side plate (14). The first to fourth bottom plates (31, 32, 33, 34) may be folded so that their ends overlap each other.

[0044] FIG. 7 is a drawing showing a cut line according to a preferred embodiment of the present invention.

[0045] As shown in FIG. 7, a cut line (PL) may be formed on at least one of the first to fourth side plates (11, 12, 13, 14).

[0046] For example, the cut line (PL) may be formed as a parallel line to correspond to the width of the first and second support members (222a, 242b) of the second and fourth side plates (12, 14).

[0047] For example, the cut line (PL) can be formed in various forms, such as a cut line, a dotted line, or a cut groove formed by pressing the side plate with a cutter.

[0048] The following describes the packaging box assembly process of the present invention.

[0049] As shown in FIG. 2, the side plate (10) and the bottom plate (30) are assembled, and the assembly of the top plate (20) is carried out with the first support member (222a) of the second top plate (22) and the second support member (242b) of the fourth top plate (24) bent downward.

[0050] As shown in FIG. 3, the first top plate (21) is bent and placed on the upper portions of the first and second support members (222a, 242b). At the same time, the first and second seating protrusions (121a, 212b) are fitted into the first and second insertion holes (223a, 243b) formed in the detachment areas of the corresponding first and second support members (222a, 242b).

[0051] When the assembly of the first top plate (21) is completed, the end portion of the third top plate (23) is assembled so that it overlaps the end portion of the first top plate (21). For example, the first top plate (21) may be assembled first and the assembly of the third top plate (23) may proceed, or conversely, the third top plate (23) may be assembled first and the assembly of the first top plate (21) may proceed.

[0052] At the same time, the end portion of the third plate (23) is overlapped and assembled on the upper end portion of the first plate (21), and the third and fourth seating protrusions (232c, 232d) are fitted into the first and second insertion holes (223a, 243b) formed in the detachment areas of the corresponding first and second support members (222a, 242b), respectively.

[0053] When the assembly of the third top plate (23) is completed, the second top plate (22) is assembled so as to overlap the first and third top plates (21, 23). At the same time, the first and second assembly protrusions (221a, 221b) are fitted into the corresponding first and second assembly holes (231a, 211b), respectively.

[0054] When the assembly of the second top plate (22) is completed, the fourth top plate (24) is assembled so as to overlap the first and third top plates (21, 23). At the same time, the third and fourth assembly protrusions (241c, 241d) are fitted into the corresponding first and second assembly holes (231a, 211b), respectively.

[0055] Since the first and fourth assembly protrusions (221a, 241d) are closely coupled to the first assembly hole (231a) so as to face each other, and the second and third assembly protrusions (221b, 241c) are closely coupled to the second assembly hole (211b) so as to face each other, a rigid assembly state can be achieved.

[0056] The first and third top plates (21, 23) are supported by the first and second support members (222a, 242b), and the second and fourth top plates (22, 24) are supported by the first and third top plates (21, 23). Accordingly, the second and fourth top plates (22, 24) at the top of the packaging box can form a flat plane without a step difference.

[0057] This structure solves the problem of invoice labels easily falling off due to the difference in height between the second and fourth plates (22, 24) in the past, and has the effect of increasing the attachment retention of the label.

[0058] As shown in Fig. 7, when the packaging box is opened, if pressure is applied to the perforation line (PL) or an adjacent area, the transmitted pressure is concentrated on the perforation line (PL), inducing a break, so that the packaging box can be easily opened.

[0059] The foregoing description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains will be able to make various modifications, changes, and substitutions within the scope of the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are intended to explain, not limit, the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by such embodiments and accompanying drawings. The scope of protection of the present invention shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention. Explanation of the symbols

[0060] 10: Side panel section 11: First side panel 12: Second side panel 13: 3rd side plate 14: 4th side plate 20: Top plate section 21 : First top plate 211b : Second assembly hole 212a : First seating projection 212b : 2nd seating projection 22 : 2nd top plate 221a : 1st assembly projection 221b: Second assembly projection 222a: First support member 223a: First insertion hole 23 : 3rd top plate 231a : 1st assembly hole 232c : 3rd seating projection 232d : 4th seating projection 24 : 4th top plate 241c : 3rd assembly projection 241d: 4th assembly projection 242b: 2nd support member 243b: 2nd insertion hole 30 : Bottom plate section 31 : First bottom plate 32 : Second bottom plate 33 : 3rd bottom plate 34 : 4th bottom plate BL : Fold line CL : Incision line CL1 : 1st incision line CL2 : 2nd incision line CL3: Third incision line PL: Cut line

Claims

Claim 1 A side plate section having a first side plate, a second side plate, a third side plate, and a fourth side plate connected to each other; and a top plate portion comprising a first top plate extending from one end of the first side plate, a second top plate extending from one end of the second side plate, a third top plate extending from one end of the third side plate, and a fourth top plate extending from one end of the fourth side plate; wherein the end portion of the first top plate and the end portion of the third top plate are overlapped at mutually corresponding positions so that one is stacked on top of the other, and when the second and fourth top plates are folded, their respective end portions are arranged to face each other so as to overlap on top of the first and third top plates, thereby forming the same plane without step difference between the second and fourth top plates, and first and second seating protrusions are provided on both sides of the end portion of the first top plate, and third and fourth seating protrusions are provided on both sides of the end portion of the third top plate, and a first support member provided on the second top plate has a part connected to the second top plate and the remaining part formed by cutting, and a second A packaging box characterized in that a portion of the support member is connected to the fourth top plate and the remainder is formed by cutting, the first and fourth seating protrusions are fitted into a first insertion hole formed in the area where the first support member is detached when the first support member is bent, and the second and third seating protrusions are fitted into a second insertion hole formed in the area where the second support member is detached when the second support member is bent. Claim 2 A packaging box further comprising, in claim 1, a bottom plate portion having a first bottom plate extending from the other end of the first side plate, a second bottom plate extending from the other end of the second side plate, a third bottom plate extending from the other end of the third side plate, and a fourth bottom plate extending from the other end of the fourth side plate. Claim 3 A packaging box according to claim 1, wherein first and second assembly protrusions are provided on both sides of the end portion of the second top plate, and third and fourth assembly protrusions are provided on both sides of the end portion of the fourth top plate, wherein the first and fourth assembly protrusions are folded facing each other and fitted into a first assembly hole provided on the third top plate, and the second and third assembly protrusions are folded facing each other and fitted into a second assembly hole provided on the first top plate. Claim 4 delete Claim 5 A packaging box according to claim 1, wherein the first and second support members are each folded downward from the second and fourth top plates and positioned at the lower portion of the first and third top plates to support the first and third top plates. Claim 6 A packaging box according to claim 1, characterized in that a cut line is formed in at least a portion of the fold line between the first side plate and the first top plate, and the fold line between the third side plate and the third top plate. Claim 7 A packaging box according to claim 6, characterized in that the above-mentioned incision line is formed by a plurality of incision lines. Claim 8 A packaging box according to claim 6, characterized in that the above-mentioned cut lines are formed in the center of the fold line between the first side plate and the first top plate and in the center of the fold line between the third side plate and the third top plate, respectively. Claim 9 A packaging box according to claim 1, characterized in that a perforation line is formed on at least one of the first to fourth side plates. Claim 10 A packaging box according to claim 9, characterized in that the perforations are formed on the second and fourth side plates.

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