KR-102961673-B1 - Stacked packaging box with airtight locking structure

KR102961673B1KR 102961673 B1KR102961673 B1KR 102961673B1KR-102961673-B1

Abstract

The present invention relates to a stackable packaging box. A pair of first side supports are spaced apart from each other in a first direction. A pair of second side supports are spaced apart from each other in a second direction orthogonal to the first direction. A pallet comprises first and second seating grooves formed along the first and second directions on the upper edge to seat the lower portions of the first and second side supports, an inclined portion formed inwardly sloping downwardly within the inner circumference of the first seating groove to temporarily support the lower portion of the first side support, and fixing pins protruding inwardly from the outer side of the first seating groove and fitted into fixing holes formed in the lower portion of the first side support. Locking mechanisms lock or unlock the first side support and the second side support.

Inventors

강명완

Assignees

(주) 승산팩

Dates

Publication Date: 20260508
Application Date: 20231127

Claims (4)

A pair of first side supports spaced apart from each other in a first direction; A pair of second side supports spaced apart from each other in a second direction orthogonal to the first direction; A pallet comprising: first and second seating grooves formed along first and second directions on the upper edge to seat the lower portions of the first and second side supports; an inclined portion formed inwardly inclined as it goes downward on the inner edge of the first seating groove to temporarily support the lower portion of the first side support; and fixing pins protruding inwardly from the outer side of the first seating groove and fitted into fixing holes formed in the lower portion of the first side support; and Locking mechanisms for locking or unlocking between the first side support and the second side support; including, The above pallet is constructed such that an upper support and a lower support are connected by vertical beams, and The upper support is configured such that a plate is sheet metal processed to have a first seating groove and an inclined portion and joined to an upper edge along a first direction, and a plate is sheet metal processed to have a second seating groove and joined to an upper edge along a second direction, and the central portion is covered by a square plate; The above pallet is provided with a protruding block that protrudes downward along the edge of the outer bottom, spaced inward from the outer edge, and A stackable packaging box characterized in that the above-mentioned protruding block is formed in the shape of a square closed loop with a constant cross-sectional area along the edge of the outer bottom of the pallet, and the outer side is formed to slope inward as it goes downward.
In paragraph 1, The above pallet includes support protrusions that protrude inward from the outer side of the second seating groove and support the lower portion of the second side support; A stacked packaging box characterized in that each of the above first side supports is folded inward from both edges and has flanges that wrap around both edges of an adjacent second side support.
In paragraph 1, Each of the above locking mechanisms is, A lever comprising a central rod rotatably supported about a horizontal axis on an external support bracket of the second side support, an operating rod bent vertically from the central rod, and a locking rod bent vertically from the central rod, inserted into a vertical locking hole of the first side support at the release position of the operating rod, and then engaged with the vertical locking hole at the lock position of the operating rod; and A locking bracket formed on the outer side of the second side support to secure the operating rod by inserting it between the operating rod and the outer support bracket at the locking position of the operating rod; A stackable packaging box characterized by including
In paragraph 1, A stackable packaging box characterized in that each of the above first side supports is provided with stacking brackets rotatably coupled to both upper outer walls, and the stacking brackets are positioned to cover or offset the corner space between the first and second side supports.

Description

Stacked packaging box with airtight locking structure The present invention relates to a packaging box for receiving and packaging cargo for transportation, and more specifically, to a packaging box that is easy to assemble and disassemble. Generally, when transporting cargo over long distances using ships or aircraft, standardized containers are used. In this case, the cargo is contained and packed in modular boxes, and these boxes are transported stacked in multiple layers inside the container. These packaging boxes are typically equipped with pallets to facilitate transportation using a forklift, and form a box shape by assembling side wall structures on top of the pallets. The side wall structures may be formed in such a way that side panels, such as paper materials, arranged on all sides on top of the pallets are supported by side supports. In cases where pallets and side supports are made of metal, there are instances where they are assembled by bolting between the pallets and side supports, and by bolting between the side supports. In such cases, the bolting and disassembly processes are cumbersome, and there is the inconvenience of having to provide separate tools. Furthermore, packaging boxes according to the prior art have a structure that makes it difficult to stably stack another packaging box on top of them. FIG. 1 is a perspective view of a stacked packaging box according to one embodiment of the present invention. Figure 2 is an exploded perspective view of Figure 1. Figures 3 to 5 are drawings for explaining the assembly process of a stacked packaging box. Figure 6 is a perspective view showing the outer bottom of the pallet. FIG. 7 is a perspective view showing an example of stacking stacked packaging boxes with stacking brackets covering the upper corner space of the stacked packaging box. FIG. 8 is a perspective view showing an example of stacking stacked packaging boxes with the stacking brackets removed from the upper corner space of the stacked packaging box. The present invention will be described in detail below with reference to the attached drawings. Here, the same reference numerals are used for identical components, and repetitive descriptions and detailed descriptions of known functions and components that could unnecessarily obscure the essence of the invention are omitted. The embodiments of the present invention are provided to more fully explain the invention to those with average knowledge in the art. Accordingly, the shapes and sizes of the elements in the drawings may be exaggerated for clearer explanation. FIG. 1 is a perspective view of a stacked packaging box according to one embodiment of the present invention. FIG. 2 is an exploded perspective view of FIG. 1. FIG. 3 to 5 are drawings for explaining the assembly process of a stacked packaging box. Referring to FIGS. 1 to 5, a stacked packaging box (100) according to one embodiment of the present invention includes a pair of first side supports (110), a pair of second side supports (120), a pallet (130), and a locking mechanism (140). A pair of first side supports (110) are spaced apart from each other in a first direction. The first side supports (110) can form a square shape by connecting horizontal beams and vertical beams by welding or the like. A square plate can be attached to the inside of the first side supports (110) to cover the space between the horizontal beams and vertical beams. The square plate may be omitted. A pair of second side supports (120) are spaced apart from each other in a second direction orthogonal to the first direction. The second side supports (120) can form a square shape by connecting horizontal beams and vertical beams. A square plate can be attached to the inside of the second side supports (120) to cover the space between the horizontal beams and vertical beams. The square plate may be omitted. The horizontal beams and vertical beams can be formed in a hollow shape and can be manufactured from a metal material such as steel. The square plate can be manufactured from a metal material such as steel. The first and second side supports (110, 120) can be assembled to the pallet (130) to support the side panels (not shown) assembled to the pallet (130) from the outside. The side panels can be made of paper material such as corrugated cardboard to prevent damage to the cargo contained within the stacked packaging box (100). The side panels can be seated in the first and second seating grooves (131, 132) of the pallet (130) in a state where their side edges are connected to form a rectangle. The pallet (130) is provided with first and second seating grooves (131, 132), an inclined portion (133), and fixing pins (134). The first seating grooves (131) are formed along a first direction on the upper edge of the pallet (130) to seat the lower portions of the first side supports (110). The second seating grooves (132) are formed along a second direction on the upper edge of the pallet (130) to se