KR20060046708A - Foldable freight container - Google Patents

Abstract

The present invention relates to a collapsible cargo container, the frame comprising a base frame, a top frame and a plurality of support pillars; And a top plate, a bottom plate, two side plates, a front plate, and a rear plate disposed in the frame, wherein the front plate and the rear plate can be folded into the cargo container to implement a collapsible cargo container. have.

Cargo Container, Folded, Frame, Plate, Support Column, Pivot Joint

Description

Collapsible Cargo Container {FOLDABLE FREIGHT CONTAINER}

Figure 1a is a perspective view schematically showing a freight container according to the present invention.

Figure 1b is a side view of the cargo container of Figure 1a.

FIG. 2A is a cross sectional view along line B-B in FIG. 1B; FIG.

Figure 2b is a partially enlarged view of Figure 2a showing the configuration of the corner portion of the cargo container according to the present invention.

Fig. 3A is a schematic diagram showing a first lock portion inside the side plate.

Fig. 3B is a schematic diagram showing a second lock portion on the front plate.

Figure 4 is a schematic view showing a cargo container in the folding process.

Figure 5a is a schematic view of the folded cargo containers from the front when stacked.

5B is a schematic view showing a freight container folded during lamination.

5C is a schematic view of a holding device for stacking cargo containers.

5D is a schematic view of a spacer for stacking cargo containers.

Figure 6 is a perspective view of the upper and lower support pillars having a lockable first pivot joint and a second pivot joint.

Figure 7 is an exploded perspective view showing the configuration of the support pillar of Figure 6;

Figure 8 is a schematic view showing the support pillar of Figure 6 in a folded state.

9 is a schematic view of a lockable first pivot joint connecting between an upper support column and a lower support column;

FIG. 10 is a schematic cross-sectional view taken along line A-A of FIG. 9 to show the relationship between the locking insert of the first block, the second block, the intermediate block and the lockable first pivot joint; FIG.

FIG. 11 is an exploded perspective view showing the relationship between the support columns of FIGS. 6 and 7 with respect to the upper plate and the lower plate; FIG.

* Description of the symbols for the main parts of the drawings *

10: Frame 11: Top Frame

12: Floor frame 16, 17: Pivot joint

21: Top plate 22: Bottom plate

23, 24: side plate 25: front plate

50: reinforcement tube 70, 80: lock

100: freight container 110: spacer

131, 132, 141, 142, 151 ,. 152: pillar

161, 171: first block 162, 172: second block

163: intermediate block 164, 173: locking insert

251, 252: Door 253: Door frame

The present invention relates to a foldable freight container (foldable freight container), the cargo container is a design of the foldable configuration when the cargo (cargo) is not loaded inside to save the stacking space and easy and convenient transportation The present invention relates to a collapsible cargo container that can be folded by means of reducing storage and reducing manufacturing costs.

A typical cargo container has a fixed structure and has a very large standardized space for loading large quantities of cargo. Typical cargo containers are standardized in dry containers having dimensions of 20 feet long, 8 feet wide, 8.6 feet high and 40 feet long, 8 feet wide, 8.6 feet high. However, even when no cargo is loaded in the cargo container, the cargo container takes up a lot of space. The very large cargo containers occupy very large spaces, and when several cargo containers are stacked, the stacked cargo containers pose a risk of accident due to their considerable height. In addition, when transporting an empty cargo container, only a limited number of cargo containers are transported by a trailer, thereby reducing transportation efficiency and increasing transportation costs.

U-shaped cargo containers, including a bottom plate and two side plates (only three plates) to form an open cargo container, are used to load high and heavy cargo. The bottom end of the side plate is pivoted with respect to the bottom plate. When the cargo container is used, the side plates are disposed perpendicular to both sides of the bottom plate, and when the cargo container is not used, the side plates are placed on the bottom plate which forms a single plate of the cargo container. Volume is minimized. However, the U-shaped cargo container cannot be used as a closed cargo container. In other words, the structure of the U-shaped cargo container cannot be used as a dry container having a rectangular and closed six plates, and a large dry cargo container can achieve the purpose of saving space in stacking the dry cargo containers. There is no problem.

As a result, minimizing the volume of an empty common cargo container remains a challenge in cargo container design.

Therefore, the present invention has been proposed to solve the above problems, the present invention provides a structure that can be folded to minimize the space occupied in order to save the stacking space and facilitate the convenient transportation of empty cargo containers when the cargo containers are empty The object is to provide a freight container having.

Collapsible cargo container of the present invention for achieving the object of the present invention, the bottom plate, the top plate facing the bottom plate, two side plates facing each other, the front plate and the rear plate facing the front plate A collapsible cargo container comprising a body having a front plate and a rear plate pivoted at front and rear ends of the bottom plate, respectively, the side plates each including an upper plate and a lower plate. The upper side plate has an upper end pivoted at the side end of the upper plate, and the upper side plate has a bottom end pivoted at the upper end of the lower side plate; The cargo container includes a fixing device disposed inside the main body such that the front plate and the rear plate do not pivot with respect to the bottom plate, and the upper plate and the lower plate do not pivot with respect to each other. .

The collapsible cargo container further includes a parallelepiped-shaped frame for positioning the bottom plate, top plate, two opposing side plates, front plate, and rear plate.

Folding process of the cargo container of the present invention is as follows. The front plate and the rear plate are suspended by a crane. The operator unlocks the second lock portions on the front plate and the rear plate so that the front plate and the rear play are laid down on the inner bottom plate of the cargo container. The cargo container frame is suspended by a crane, and the worker folds the frame by unlocking the first lock portion on the side of the cargo container. The folded freight container is fixed in a folded state using a fixing device for fixing the corners of the top frame and the bottom frame. Spacers are arranged at the corners of the upper frame of the folded freight container to stack other folded freight containers. The folded freight container is only 20% of the height of the unfolded freight container, thus saving space.

Further objects, features and advantages of the present invention can be more clearly understood from the following detailed description and the accompanying drawings.

Freight container of the present invention, as shown in Figures 1a to 2a, the cargo container frame 10, the top plate 21, the bottom facing the top plate (bottom) ) Plate 22, two side plates 23 and 24, a front plate 25, and a rear plate (not shown) opposite the front plate 25. The cargo container frame 10 is formed in a substantially parallelepiped shape, the dimensions of which are not limited to the standard dimensions of a general dry cargo container. The cargo container frame 10 is a top frame 11 located on the top plate 21, a bottom frame 12 opposite to the top frame 11 and located on the bottom plate 22, and the top At least four supporting pillars connecting between the frame 11 and the bottom frame 12 are included. Preferably, the at least four support pillars are composed of six support pillars, four of which support pillars connect between the four corners of the top frame 11 and the bottom frame 12, and two A space for positioning the side plates 23 and 24, the front plate 25 and the rear plate is formed. The remaining two support columns are respectively disposed in the center of the side plate. Referring to Figure 1b showing an embodiment of the support pillar including the side plate 23, the upper support pillar (131, 141, 151) and the lower support pillar (132, 142, 152), the upper support pillar ( The upper and lower support pillars 132, 142, and 152 of the 131, 141, and 151 are pivoted on the upper frame 11 and the bottom frame 12, respectively, and the upper support pillars 131, 141, 151 is pivoted at the lower support pillars 132, 142, 152, the upper and lower support pillars can be folded into a cargo container. Each of the four corner portions of the top frame 11 and the corner portions of the bottom frame 12 includes a corner block 90, and the corner block 90 has a slot on its outer surface. Equipped.

In this embodiment, the configuration of the support pillar on the side plate is not limited to the configuration of one column disposed in the center portion of the side plate, there may be no support pillar or one or more support pillars in the side plate.

The upper plate 21, the bottom plate 22, the side plates 23 and 24, the front plate 25 and the rear plate (not shown) form a closed cargo container. Each side plate of the cargo container includes at least one upper side plate and at least one lower side plate disposed between the upper support pillars 131 and 151 and the lower support pillars 132 and 142, respectively. Referring to FIG. 1B illustrating an embodiment of the side plate 23, the side plate 23 is formed by two upper side plate panels 231 and 233 by an upper support column 141 and a lower support column 142. ) And two lower side plate panels 232 and 234.

As shown in FIGS. 1A and 1B, the front plate 25 includes a door frame 253 and two doors 251 and 252 which are arranged and open in the door frame 253. The doors 251 and 252 use a bolt lock 254 fixed to the door frame 253. The bottom of the door frame 253 is pivoted on the bottom frame 12, so that the front plate 25 may be placed inside the cargo container (see Fig. 4). Similarly the bottom of the rear plate is pivoted on the bottom frame 12 so that the rear plate can be placed inward on the cargo container. The door frame 253 of the front plate 25 is provided with at least one hook ring (not shown) to be suspended by a crane in the folding process.

In order to form the side plate 23, for example, the upper plate panel 231 and the lower plate panel 232 may measure the rigidity of the upper plate panel 231 and the lower plate panel 232. To increase it includes a reinforcement tube 50 at its top and bottom as shown in FIGS. 2A and 2B. Between the reinforcing tube 50 and the top frame 11 and the bottom frame 12, a rubber strip (ie, a rubber strip) as shown in FIG. 2B to provide a damping and waterproof effect. Is placed. In addition, the sealing rubber strip 60 may be disposed in the connection portion of the door frame, the door and the frame.

Between the upper support pillars 131, 141, 151 and the lower support pillars 132, 142, 152 (or between the upper side plate panels 231, 233 and the lower side plate panels 232, 242); Between the support columns 131, 141 and 151 (or the upper side plate panels 231 and 232) and the upper frame 21, and the lower supporting columns 132, 142 and 152 (or the lower side plate panels 232, A plurality of first locks 70 are provided inside the cargo container between the 234 and the bottom frame 22 to prevent the upper plate from being folded when the cargo container is used. The door frame 253 of 25 provides a plurality of second lock portions fixed to the upper frame (or the upper plate 21) to prevent the rear plate (not shown) and the front plate 25 from falling down. As shown in Figs. 3A and 3B, each of the first lock parts 70 includes two adjacent lock blocks ( 71) and a lock bolt 72, wherein the second lock portion 80 is assembled, for example, as a bolt lock 81, to prevent the front plate 25 and the rear plate from falling down. The bolt lock 81 includes a plate having a hole and disposed in the upper frame 11 and a bolt disposed in the door frame 253. The door frame 253 has a hole in the plate. It can be fixed by inserting the bolt into the hole.

In the process of folding the cargo container of the present invention, the hook ring of the door frame 253 and the rear plate of the front plate 25 is suspended to the crane, the operator to the cargo container to unlock the second lock portion 80 Enter First, the worker slowly lowers the rear plate using a crane. Then, the operator closes the doors 251 and 252 of the front plate 25, locks the doors 251 and 252 to the front plate 25, and slowly lowers the front plate 25 by a crane. . The hook ring of the upper frame 11 is suspended by a crane, and the operator unlocks the first lock portion 70 so that the side plates 23 and 24 can be slowly folded inward. Figure 4 shows a front view of the cargo container in the folding process after the front plate 25 and the rear plate is laid down, Figure 5a shows a front view of the folded cargo container.

5b, 5c and 5d, when the cargo container is folded, the holding block 90 of the top frame 11 and the bottom frame 12 to maintain the folded state It is fixed by 100. When the folded freight containers are stacked, each corner portion of the freight container is provided with a spacer 110 for aligning and distinguishing the folded freight containers.

The retaining device 100 includes a connecting rod 105, and each end of the connecting rod 105 includes handles 102 and 104 and lock panels 101 and 103. The lock panels 101 and 103 are inserted into slots of the corner block 90. By rotating the handles 102 and 104, the lock panels 101 and 103 lock the corner blocks 90 of the upper cargo container and the lower cargo container so that the folded cargo containers are aligned with each other.

The spacer 110 includes a spacer block 111 and fixing parts 113 and 114. The fixing parts 113 and 114 are provided to be movable together with the bar 112. Each of the folded cargo containers is limited by the spacers 110 disposed at four corners of the cargo containers, and the cargo containers are sequentially arranged in a horizontal movement restricted state.

6, 7 and 8, the upper support pillar 131 and the lower support pillar 132 are pivotally connected to each other using a lockable first pivot joint 16. The first pivot joint 16 includes a first block 161, a second block 162, an intermediate block 163, and a locking insert 164. The first block 161 has a first end 1611 welded to the upper support pillar 131 and a second end formed with a U-shaped groove 1613 and two aligned pivotal holes 1614. (1614). The terminal end of the second end 1612 of the first block 161 is formed of a pair of angled recesses 1615 and 1616. The second block 162 is substantially symmetrical with the first block 161, the first end and the U-shaped groove 1623 and two alignment pivot holes 1624 welded to the lower support pillar 132. And a second end 1622 formed of the same. An end of the second end 1522 of the second block 162 is formed of a pair of angled recesses 1625 and 1626. The U-shaped groove 1613 of the first block 161 forms a space for accommodating the intermediate block 163 jointly with the U-shaped groove 1623 of the second block 162. The intermediate block 163 is formed with two through holes 1631 and 1632 corresponding to the pivot hole 1624 of the second block 162 and the pivot hole 1614 of the first block 161. The first block 161 and the second block 162 may be pivotally coupled to the intermediate block 163 by pins (not shown), respectively.

7, 8, 9, and 10, the intermediate block 163 includes a central hole 1633 and second ends 1612 of the first block 161 and the second block 162. Adjacent to 1622, two elongate recesses 1634 and 1635 are formed, respectively. The locking insertion portion 164 is a base (1641) and the intermediate block (163) formed with the rectangular projections (1642, 1643) facing each other to be coupled to the rectangular grooves (1634, 1635) of the intermediate block (163). And a central hole 1644 aligned with the central hole 1633. As shown in Fig. 11, the locking insert 164 is provided to be engaged with the intermediate block 163 from the outside of the side plate 23.

The locking insertion portion 164 may have an angled groove 1615 of the first block 161 when the second ends 1611 and 1621 of the first and second blocks 161 and 162 contact each other. 1616 and two aligned central projections 1645 and 1646 accommodated in the space defined by the angular grooves 1625 and 1626 of the second block 612. When the second ends 1612 and 1622 of the first and second blocks 161 and 162 are in contact with each other so that the upper support pillar 131 and the lower support pillar 132 are not folded, the locking insertion is performed. The portion 164 is attached to the intermediate block 163 by bolts (not shown) (see FIG. 10).

As shown in FIG. 8, when the locking insert 164 is not attached to the first pivot joint 16, the upper support pillar 131 and the lower support pillar 132 may be folded inwardly.

When the locking insertion portion 164 is attached to the first pivot joint 16 by a bolt (not shown), the two rectangular protrusions 1642 and 1643 of the locking insertion portion 164 oppose the intermediate block 164. Of the locking insert 164 when the second end portions 1612 and 1622 of the first and second blocks 161 and 162 are in contact with each other, The two central projections 1645 and 1646 are combined with a space formed by the angled grooves 1615 and 1616 of the first block 161 and the angled grooves 1625 and 1626 of the second block 162. The one pivot joint 16 is securely locked in the unfolded state, and the upper support pillar 131 and the lower support pillar 132 remain unfolded.

6 and 7, a lockable second pivot joint 17 is provided between the upper support pillar 131 and the positioning block 18. The positioning block 18 is firmly fixed to the upper frame 11 by welding or the like (see Fig. 1A). The second pivot joint 17 includes a first block 171, a second block 172, and a locking insert 173. The first block 171 has a second end 1712 formed with a first end 1711 and a central protrusion 1713 for reliably attaching to the positioning block 18. A pivot hole 1714 is formed in the central protrusion 1713 of the first block 171, and an angled groove 1715 is formed at the end of the pivot hole 1714. Two of the central protrusions 1713 are formed. Two alignment grooves 1716 and 1717 are provided on opposite sides, and at least two threaded holes 1718 are formed in the second block 172 of the second pivot joint 17. The second pivot The second block 172 of the joint 17 has a first end 1721 and a second end 1722. The first end 1721 is securely attached to the upper support column 131, The second end 1722 has a first block 171 and a second block 172 by a U-shaped groove 1723 and a pin (not shown) for accommodating the central protrusion 1713 of the first block 171. Two pivot holes 1723 corresponding to the pivot holes 1714 of the first block 171 are formed so as to pivotally engage with the first block 171. The two blocks 172 have two alignments of the first block 171. Two alignment grooves 1726 corresponding to the grooves 1716 and 1717 1727 is formed.

The locking insertion unit 173 includes a base 1731 having at least two through holes 1732 and 1733 corresponding to two threaded holes 1718 of the first block 171. 1731 may be attached to the first block 171 by at least two bolts (not shown) from the inside of the first block 171. The base 1731 is formed with a central protrusion 1734 corresponding to the angular groove 1715 of the first block 171. In addition, the base 1731 has a pair of stoppers corresponding to two alignment grooves 1716 and 1717 of the first block 171 and two alignment grooves 1726 and 1727 of the second block 172. It is formed with (1735). When the locking insertion unit 173 is attached to the first block 171 by bolts, the central protrusion 1734 of the locking insertion unit 173 is engaged with the angular groove 1715 of the first block 171. The pair of stoppers 1735 of the locking insertion unit 173 are coupled between the alignment grooves 1716 and 1717 of the first block 171 and the angled grooves 1726 and 1727 of the second block 172. Thus, the second block is prevented from being rotated relative to the first block 171, and the second pivot joint 17, which is lockable in the unfolded state, is maintained.

When the locking insert 173 is removed from the first block 171, the angled groove 1715 of the first block 171, the two alignment grooves 1716, 1717, and the second block 172 may be removed. The two alignment grooves 1726 and 1727 may allow the second block 172 to rotate relative to the first block 171 so that the upper support pillar may be folded inward.

6 and 7, the second pivot joint 17 may be disposed between the lower support pillar 132 and the positioning block 18, such that the lower support pillar 132 is the locking insertion portion 173. ) May be locked in the unfolded state when attached to the first block 171, and may be folded inward when the locking insertion unit 173 is removed. In addition, the first end 1711 of the first block 171 of the second pivot joint 17 may be directly attached to the top frame 11 or the bottom frame 12 (see FIG. 1A). The present invention relates to a new invention that can be promoted in the art. The foregoing description is a description of a preferred embodiment according to the present invention. DETAILED DESCRIPTION OF THE INVENTION The present invention is described in detail in connection with the limitations of preferred embodiments, for example, front plate, rear plate, side plate, top plate, bottom plate, their relative positions, and the configuration of hinges for pivoting on a plate or frame. Since it is not limited to what is described in the following, changes and implementations to certain features of the preferred embodiments which do not change the overall basic function of the present invention are made within the technical idea of the present invention.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

As described above, the collapsible cargo container of the present invention has the effect of minimizing the space occupied in order to save stacking space and facilitate convenient transportation of empty cargo containers when the cargo containers are empty.

Claims (23)

A collapsible cargo container comprising a body having a bottom plate, an upper plate opposing the bottom plate, two side plates opposing each other, a front plate and a rear plate opposing the front plate, The front plate and the rear plate are pivoted at the front end and the rear end of the bottom plate, respectively, and each side plate includes an upper side plate and a lower side plate, and the upper side plate pivots at the side end of the upper plate. An upper end, the upper side plate having a bottom end pivoted at the upper end of the lower side plate; The cargo container includes a fixing device disposed inside the main body such that the front plate and the rear plate do not pivot with respect to the bottom plate, and the upper plate and the lower plate do not pivot with respect to each other. Collapsible Cargo Container. The method of claim 1, It further comprises a parallelepiped-shaped frame for positioning the bottom plate, the top plate, two opposing side plates, the front plate, and the rear plate Collapsible Cargo Container. The method of claim 2, The frame includes a rectangular top frame, a bottom frame opposed to the top frame, and four or more support pillars connecting the top frame and the bottom frame. Collapsible Cargo Container. The method of claim 3, The frame includes six or more support columns, four of which are connected to four corners of the top frame and the bottom frame, and the four support columns, the top frame and the bottom frame are the two side surfaces. A space for accommodating the plate, the front plate and the rear plate, and the remaining support columns are equally disposed on the two opposing side plates, each of the two or more support columns including an upper support column and a lower support column. doing Collapsible Cargo Container. The method of claim 4, wherein Each of the upper plates includes a plurality of upper plate panels, each of the lower plates includes a plurality of lower plate panels, and the plurality of upper plate panels and the lower plate panels are divided by the support pillars disposed thereon, respectively. Spaced Collapsible Cargo Container. The method of claim 1, The front plate includes two doors each of which can be opened, and a door frame in which the door is pivoted. Collapsible Cargo Container. The method of claim 6, Further comprising a hook ring disposed on the door frame and the rear plate Collapsible Cargo Container. The method of claim 5, Further comprising a plurality of reinforcing tubes disposed on the upper end and bottom end of the upper side plate and the upper end and bottom end of the lower side plate Collapsible Cargo Container. The method of claim 8, At least one side of the reinforcing tube further comprises a plurality of rubber strips disposed for damping and waterproofing Collapsible Cargo Container. The method of claim 5, The fixing device A plurality of first lock portions pivotally disposed between the upper side plate and the lower side plate; Collapsible Cargo Container. The method of claim 10, The fixing device Further comprising a plurality of second lock portions disposed between the upper frame and the door frame of the front plate and between the upper plate and the rear plate Collapsible Cargo Container. The method of claim 4, wherein The upper support column and the lower support column Pivotally connected to each other by a lockable first pivot joint comprising a first block, a second block, an intermediate block and a locking insert Collapsible Cargo Container. The method of claim 12, The first block of the first pivot joint includes a first end welded to the upper support pillar and a second end formed with a U-shaped groove and two alignment pivot holes. An end of the second end of the first block is formed having a pair of angled grooves, The second block has a configuration symmetrical with the first block, and has a first end welded to the lower support pillar, and has a U-shaped groove and two alignment pivot holes, The U-shaped groove of the first block is associated with the U-shaped groove of the second block to form a space for accommodating the intermediate block, The intermediate block is formed with two through holes corresponding to the pivot hole of the first block and the pivot hole of the second block, so that the first block and the second block of the first pivot joint are each formed by a pin. Combined with pivot Collapsible Cargo Container. The method of claim 13, The intermediate block is formed with a central hole and two opposing rectangular grooves adjacent to the second end of the first block and the second end of the second block, respectively. Collapsible Cargo Container. The method of claim 14, The locking insert portion A base formed with two opposing rectangular projections to be coupled to the longitudinal grooves of the intermediate block, and a central hole aligned with the central hole of the intermediate block. Collapsible Cargo Container. The method of claim 15, The locking insert portion It is provided to be coupled to the intermediate block from the outside of the side plate  Collapsible Cargo Container. The method of claim 16, The locking insert of the first pivot joint When the second end of the first block and the second block is in contact with each other, further comprising two alignment center projections accommodated in the space formed by the angular groove of the first block and the second block Collapsible Cargo Container. The method of claim 17, The locking insert of the first pivot joint is attached to the intermediate block by bolts. Collapsible Cargo Container. The method of claim 4, wherein The upper support pillar is pivotally connected to the upper frame by a second lockable pivot joint. Collapsible Cargo Container. The method of claim 19, The second pivot joint includes a first block, a second block, and a locking insert. Collapsible Cargo Container. The method of claim 20, The first block of the second pivot joint includes a first end securely attached to the upper frame, and a second end formed with a central protrusion, The central protrusion of the first block is formed with an angled groove formed in the pivot hole and the end, Two opposed grooves are provided on two opposite sides of the central protrusion. Collapsible Cargo Container. The method of claim 21, The first block of the second pivot joint is formed with two or more threaded holes, The second block of the second pivot joint may include a first end securely attached to the upper support pillar, a U-shaped groove for accommodating a central projection of the first block, and the first block and the first block by a pin. And a second end formed with two pivot holes corresponding to the pivot holes of the first block so as to pivotally couple with the two blocks, The second block is formed having two alignment grooves corresponding to two alignment grooves of the first block. Collapsible Cargo Container. The method of claim 22, The locking insert includes a base formed with two or more threaded holes corresponding to two threaded holes of the first block, and the base is attached to the first block by two or more bolts from the inside of the first block. The base is formed with a central projection corresponding to the angular groove of the first block, and is formed with a pair of stoppers corresponding to two alignment grooves of the first block and two alignment grooves of the second block. Collapsible Cargo Container.

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