CN101723137B - Packing box - Google Patents

Abstract

A packing box comprises a carrier and at least one adjustable bearing module. The adjustable bearing module comprises a rail and at least one bearing column. The track is arranged at the first bottom of the carrier and is provided with a second bottom and two second side walls provided with a plurality of positioning holes. The support column is movably arranged on the track and comprises a column body, two support seats and two elastic positioning pieces. Each support seat has a first support portion and a second support portion. The first supporting part is connected to the tail end of the column body and abuts against the top surface of the second side wall, and the second supporting part extends to the second bottom from the first supporting part. The elastic positioning piece extends from the tail end of the column body to the second bottom and is positioned between the two supporting seats. Each elastic positioning piece is provided with at least one positioning convex part which is clamped in one of the positioning holes. The packaging box can package a plurality of display panels externally connected with a driving circuit board.

Description

Packing box

technical field

The present invention relates to a packing box, and in particular to a packing box which can be used for packing a display panel externally connected with a driving circuit board.

Background technique

In recent years, with the advancement of flat-panel display technology, coupled with the advantages of light weight, thin thickness and power saving of flat-panel displays, flat-panel displays have gradually replaced traditional cathode ray tube (CRT) displays. Currently common flat panel displays include liquid crystal displays (liquid crystal displays, LCDs), plasma displays (plasma display panels, PDPs), electrophoretic displays (electrophoretic displays, EPDs) and the like.

The flat panel display includes a display panel, and the display panel has peripheral circuits, and the peripheral circuits are connected to a driving circuit board through a flexible printed circuit board (FPCB). When transporting the display panels connected with the driving circuit boards, it is usually necessary to fix the display panels and the driving circuit boards, so as to prevent the display panels and the driving circuit boards from being damaged or causing poor contact during transportation. In the prior art, a packaging box is usually used to protect the display panel and the driving circuit board.

Fig. 1 is a schematic top view of a conventional packaging box. Please refer to FIG. 1 , the conventional packaging box 100 includes a carrier 110 and a cover (not shown) that can be assembled with each other. The carrier 110 has a main accommodating space 112 and a secondary accommodating space 114 adjacent thereto, wherein the main accommodating space 112 is used for accommodating the display panel 50 , and the secondary accommodating space 114 is used for accommodating the driving circuit board 60 . In addition, a plurality of support posts 116 are disposed between the main accommodation space 112 and the secondary accommodation space 114 for the display panel 50 and the driving circuit board 60 to support. In this way, the display panel 50 can be fixed by the side walls 113 and the support columns 116 around the main accommodation space 112, and the driving circuit board can be fixed by the side walls 115 and the support columns 116 around the secondary accommodation space 114. 60, thereby preventing the display panel 50 and the driving circuit board 60 from being damaged or causing poor contact during transportation.

However, for different types of flat panel displays, the driving circuit board 60 used to drive the display panel 50 may be different, and the number of flexible circuit boards 70 used to electrically connect the display panel 50 and the driving circuit board 60 may also be different. . Therefore, it is necessary to manufacture a dedicated packaging box 100 for each type of flat panel display, which will greatly increase the cost of making the mold for the packaging box 100 .

Contents of the invention

The invention provides a packing box, which can be used for packing various display panels externally connected with driving circuit boards.

In order to achieve the above advantages, the present invention proposes a packaging box, which includes a carrier and at least one adjustable supporting module. The carrier has a first bottom and a plurality of first sidewalls connected to edges of the first bottom. The adjustable supporting module is arranged on the first bottom and is located beside at least one of the first side walls. The adjustable support module includes a track and at least one support column. The track is fixed on the first bottom, and the track has a second bottom and two second side walls connected to opposite sides of the second bottom, and the second side walls are respectively provided with a plurality of positioning holes. The support column is movably arranged on the track, and the support column includes a column body, two support seats and two elastic positioning parts. The supporting base is connected to the end of the column, and each supporting base has a first supporting portion and a second supporting portion. The first support part is connected to the end of the pillar and leans against the top surface of the second side wall, while the second support part extends from the first support part to the second bottom and is located between the second side walls. The elastic positioning member extends from the end of the cylinder to the second bottom, and is located between the two supporting seats. Each elastic positioning member has at least one positioning protrusion, and the positioning protrusion is engaged in one of the positioning holes.

In an embodiment of the present invention, the above-mentioned elastic positioning members are respectively opposite to one of the second side walls.

In one embodiment of the present invention, the above-mentioned supporting column is integrally formed or combinedly formed.

In one embodiment of the present invention, the above-mentioned track is embedded in the first bottom.

In one embodiment of the present invention, the above-mentioned track is formed by overlapping sub-tracks.

In one embodiment of the present invention, each of the above-mentioned sub-tracks is integrally formed or combined.

In one embodiment of the present invention, the above-mentioned track is integrally formed.

In one embodiment of the present invention, the above positioning holes include through holes or blind holes.

In an embodiment of the present invention, the above-mentioned positioning holes of each second side wall are arranged at equal intervals.

In one embodiment of the present invention, the above-mentioned positioning hole on one of the second side walls corresponds to the positioning hole on the other of the second side walls.

In one embodiment of the present invention, the above-mentioned column is a rectangular column.

In an embodiment of the present invention, the above-mentioned adjustable support module further includes at least one fixing column connected to one end of the track, and the carrier is provided with at least one fixing groove, and the fixing column is fixed in the fixing groove.

In one embodiment of the present invention, the above-mentioned fixing column is perpendicular to the first bottom.

In one embodiment of the present invention, the material of the above-mentioned carrier comprises expanded polypropylene (Expanded Polypropylene, EPP), expanded polystyrene (Expandable polystyrene, EPS), polyethylene/polystyrene (PE/PS), or expanded ethylene polymer (EPO).

In an embodiment of the present invention, the above-mentioned packaging box further includes a cover suitable for being assembled with the carrier.

In an embodiment of the present invention, the above-mentioned positioning hole is adjacent to the first bottom.

The present invention further provides a packaging box, which includes a carrier, a U-shaped cross-section track, and a plurality of supporting columns. The carrier includes a first bottom with a plurality of edges, and a plurality of first sidewalls connected to the edges of the first bottom. The U-shaped section track is embedded in the first bottom, and includes two corresponding edges of the second bottom, and two second side walls connected to the corresponding edges of the second bottom. The support column is movably arranged on the U-shaped cross-section track, and respectively includes a column with a tail end and an end opposite to the tail end, and two elastic positioning members connected to the ends of the column, and respectively corresponding to the second side wall; and A cover is detachably assembled on the first side wall of the carrier, and forms an accommodating space with the first bottom and the first side wall of the carrier. The accommodating space is divided into a main accommodating space and a secondary accommodating space by the U-shaped section track and the supporting column.

In one embodiment of the present invention, the material of the above-mentioned U-shaped section track includes expanded polypropylene (EPP), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), glass fiber, polyacetal (POM), or the mixing material of the aforementioned materials, such as: acrylonitrile butadiene styrene (ABS) plus polycarbonate (PC) and so on.

In an embodiment of the present invention, one of the above-mentioned second sidewalls is a multilayer sidewall.

In an embodiment of the present invention, the above-mentioned second side walls are respectively provided with a plurality of positioning holes.

In one embodiment of the present invention, the above-mentioned elastic positioning members respectively include a positioning protrusion, and the positioning protrusions of the same elastic positioning member engage with the corresponding positioning holes of the same second side wall. .

In an embodiment of the present invention, the above-mentioned carrier further includes a corner reinforcing block connected to the first bottom and two adjacent first side walls.

In one embodiment of the present invention, the above-mentioned packing box further includes a fixing post inserted into the corner reinforcing block and connected to one end of the U-shaped section track.

In one embodiment of the present invention, the above-mentioned fixed column is made of expanded polypropylene (EPP), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), glass fiber, polyacetal (POM ), or the mixing materials of the aforementioned materials, such as: acrylonitrile butadiene styrene (ABS) plus polycarbonate (PC) and so on.

In one embodiment of the present invention, the above-mentioned supporting column is made of expanded polypropylene (EPP), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), glass fiber, polyacetal ( POM), or the mixing material of the aforementioned materials, such as: acrylonitrile butadiene styrene (ABS) plus polycarbonate (PC) and so on.

In an embodiment of the present invention, one of the above-mentioned supporting columns further includes a first support portion connected to the end of the column.

In an embodiment of the present invention, the aforesaid support column further includes a second support portion connected to the first support portion.

In an embodiment of the present invention, each of the above-mentioned second side walls has an inner side, and the inner sides of the second side walls correspond to each other, and the second supporting portion abuts against the inner side of the second side wall.

In one embodiment of the present invention, the material of the above-mentioned cover body comprises expanded polypropylene (Expanded Polypropylene, EPP), expanded polystyrene (Expandable polystyrene, EPS), polyethylene/polystyrene (PE/PS) , or expanded ethylene polymer (EPO).

In the packaging box of the present invention, since the supporting columns are movably arranged on the track, the position and quantity of the supporting columns can be adjusted for different types of flat-panel displays. Therefore, the packing box of the present invention can be used to pack various display panels externally connected with driving circuit boards.

Description of drawings

The following drawings are only intended to illustrate and explain the present invention schematically, and do not limit the scope of the present invention. in,

Fig. 1 is a schematic top view of a conventional packaging box.

Fig. 2 is a schematic perspective view of a packaging box according to an embodiment of the present invention.

FIG. 3 is a partial perspective view of the adjustable supporting module in FIG. 2 .

Fig. 4 is a perspective view of a sub-track according to another embodiment of the present invention.

FIG. 5A and FIG. 5B are three-dimensional schematic diagrams of two angles of view of the support column in FIG. 3 .

6A and 6B are three-dimensional schematic views of other two embodiments of the supporting column of the present invention.

Fig. 7 is a schematic perspective view of a packaging box according to another embodiment of the present invention.

Fig. 8 is a schematic top view of a packaging box according to another embodiment of the present invention.

Explanation of reference signs:

50: display panel

60: Driver circuit board

70: flexible circuit board

100: packing box

110: carrier

112: main storage space

113, 115: side wall

114: Secondary storage space

116: Bearing column

200, 200’, 200”: packing box

210, 210': carrier

212: First Bottom

213: First bottom edge

214: first side wall

216: fixed slot

217: corner reinforcement block

220: cover body

300, 300': adjustable supporting module

310: track

311, 311': sub-tracks

312: second bottom

313: Parts of subtracks

314: second side wall

315: positioning hole

316: Top surface of the second side wall

317: inner side of second side wall

318: second bottom edge

320, 320’, 320”: support column

322: Cylinder

322a: tail end of cylinder

322b: end of cylinder

324: Support seat

325: First support part

326: Elastic parts

327: Second support part

329: positioning convex part

330: fixed column

S1: storage space

S2: Main storage space

S3: Secondary storage space

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

FIG. 2 is a schematic perspective view of a packaging box according to an embodiment of the present invention, and FIG. 3 is a partial perspective view of the adjustable supporting module in FIG. 2 . Please refer to FIG. 2 and FIG. 3 , the packaging box 200 of this embodiment includes a carrier 210 and at least one adjustable supporting module 300 . The carrier 210 has a first bottom 212 and a plurality of first sidewalls 214 , the first bottom 212 has a plurality of edges 213 , and the first sidewalls 214 are connected to the edges 213 of the first bottom 212 . The material of the carrier 210 includes expanded polypropylene (Expanded Polypropylene, EPP), expanded polypropylene (Expanded Polypropylene, EPP), expanded polystyrene (Expandable polystyrene, EPS), polyethylene/polystyrene (PE/PS) , or expanded ethylene polymer (EPO), but not limited thereto. In addition, the at least one adjustable bearing module 300 is disposed on the first bottom 212 and is located beside at least one of the plurality of first side walls 214 . This embodiment takes an adjustable supporting module 300 as an example, so the adjustable supporting module 300 is disposed beside one of the first side walls 214 .

Based on the above, the adjustable supporting module 300 includes a track 310 and at least one supporting column 320 , and in FIG. 2 , a plurality of supporting columns 320 are taken as an example. The track 310 is, for example, a U-shaped section track with a U-shaped section, which is fixed to the first bottom 212 . In this embodiment, the track 310 is embedded in the first bottom 212 , for example. The material of the track 310 includes expanded polypropylene (EPP), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), glass fiber, polyacetal (POM), or a mixing material of the aforementioned materials, such as : Acrylonitrile butadiene styrene (ABS) plus polycarbonate (PC) and so on. In addition, as shown in FIG. 3 , the rail 310 has a second bottom 312 and two second sidewalls 314 connected to opposite sides of the second bottom 312 . Specifically, the second bottom 312 has two corresponding edges 318 , and the two second sidewalls 314 are connected to the corresponding edges 318 of the second bottom 312 . The second sidewalls 314 are respectively provided with a plurality of positioning holes 315 , and the positioning holes 315 are, for example, adjacent to the first bottom 212 to enhance the stability of the support column 320 . In addition, the track 310 in this embodiment is formed by overlapping multiple sub-tracks 311 to extend the required length of the track 310 , but in other embodiments, the track 310 can also be integrally formed. In addition, each sub-track 311 in this embodiment is, for example, integrally formed, but in other embodiments, the track 310 or the sub-track 311 can be combined to facilitate manufacturing. As shown in FIG. 4, the sub-track 311' may consist of two opposing parts 313.

FIG. 5A and FIG. 5B are three-dimensional schematic diagrams of two angles of view of the support column in FIG. 3 . Please refer to FIG. 3 , FIG. 5A and FIG. 5B , the above-mentioned support column 320 is movably disposed on the track 310 . The material of the support column 320 includes, for example, expanded polypropylene (EPP), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), glass fiber, polyacetal (POM), or a mixture of the aforementioned materials. Materials such as: Acrylonitrile Butadiene Styrene (ABS) plus Polycarbonate (PC) etc. The support column 320 includes a column body 322 , two support seats 324 and two elastic positioning members 326 . The cylinder 322 has a tail end 322 a and an end 322 b opposite to the tail end 322 a , and the support base 324 is connected to the end 322 b of the cylinder 322 , wherein each support base 324 has a first support portion 325 and a second support portion 327 . The first supporting portion 325 is connected to the end 322b of the post 322, and leans against the top surface 316 of the second side wall 314 of the track 310, so as to provide a more stable support for the post 320 and reduce the degree or possibility of shaking . When the support post 320 is assembled on the track 310 , the second support portion 327 extends from the first support portion 325 to the second bottom 312 of the track 310 and is located between the two second side walls 314 . Specifically, each second sidewall 314 has an inner side surface 317, the inner side surfaces 317 of the two second sidewalls 314 correspond to each other, and the second supporting portion 327 abuts against the inner side surface 317 of the second sidewall 314, In order to provide more stable support for the support column 320 and reduce the degree or possibility of shaking.

In addition, the elastic locator 326 is connected to the end 322b of the column 322. When the supporting column 320 is assembled on the track 310, the elastic locator 326 extends from the end 322b of the column 322 to the second bottom 312 of the track 310, and is located at between the above two supporting bases 324 . Each elastic positioning member 326 has at least one positioning protrusion 329 , and in this embodiment, two positioning protrusions 329 are taken as an example to stably engage the support post 320 and the track 310 . Each positioning protrusion 329 is engaged in one of the above positioning holes 315 .

The above-mentioned two elastic positioning members 326 are for example opposite to one of the above-mentioned two second side walls 314 respectively. The corresponding positioning hole 315 of the same second side wall 314 is engaged. In addition, the support column 320 of this embodiment is integrally formed, for example, to obtain better structural strength, but in other embodiments, the support column 320 can also be combined, that is, the support column 320 can be composed of multiple parts Assembled for ease of manufacture and molding. In addition, the above-mentioned positioning hole 315 can be a through hole or a blind hole. In other embodiments, one of the above-mentioned second side walls is a multi-layer side wall, such as a two-layer side wall, which can obtain better structural strength, and the positioning hole 315 can completely pass through the two-layer side wall through-hole, or it may be a blind hole that only penetrates the inner sidewall. The positioning holes 315 of each second side wall 314 are preferably arranged at equal intervals, and the positioning holes 315 located in one of the above-mentioned two second side walls 314 are, for example, aligned with the positioning holes located in the other second side wall 314 315 corresponds. In addition, in this embodiment, the cylinder 322 is, for example, a rectangular cylinder, but the present invention does not limit the shape of the cylinder 322 .

In this embodiment, the elastic positioning member 326 can be deformed by applying force to make the positioning protrusion 329 disengage from the positioning hole 315, and then adjust the supporting post 320 to a proper position, and then remove the elastic force applied to it. The force of the positioning member 326 makes the positioning protrusion 329 engage with other positioning holes 315 . In this way, the position of the support column 320 on the track 310 can be adjusted. In addition, the number of elastic positioning members 326 on the track 310 can also be increased or decreased according to requirements.

Please refer to FIG. 2 again. In this embodiment, the accommodating space S1 of the carrier 210 is divided into a main accommodating space S2 and a secondary accommodating space by the rail 310 and the support column 320 (that is, the adjustable support module 300 ). S3, wherein the main accommodating space S2 can be used for accommodating the display panel, and the secondary accommodating space S3 can be used for accommodating a driving circuit board connected to the display panel. Since the position and quantity of the supporting column 320 can be adjusted according to the requirement, the position of the supporting column 320 can be adjusted according to the size and quantity of the driving circuit board and the flexible circuit board connecting the driving circuit board and the display panel. and quantity. Therefore, the packing box 200 of this embodiment can pack various display panels externally connected with a driving circuit board. In this way, there is no need to separately manufacture special packaging boxes for different types of flat-panel displays, so the cost of making molds for packaging boxes can be saved.

It should be noted that, in addition to packaging display panels, the packaging box 200 of this embodiment can also be used to package other types of objects to be packaged. In addition, the present embodiment does not limit the appearance of the support column 320, and the appearance of the support column may also be as shown in the support columns 320', 320" in Fig. 6A and Fig. 6B, but it is not limited thereto. In Fig. 5, the corner above the first support portion 325 of the support column 320 is arc-shaped; in Fig. 6A, the corner above the first support portion 325 of the support column 320' is at a right angle; The edge of the first support portion 325 of the pillar 320 ″ is aligned with the pillar 322 .

Fig. 7 is a schematic perspective view of a packaging box according to another embodiment of the present invention. Please refer to FIG. 7, the packing box 200' of this embodiment is similar to the packing box shown in FIG. 330 is connected to one end of the track 310 , and the carrier 210 ′ is provided with at least one fixing groove 216 , and the fixing column 330 is fixed in the fixing groove 216 . In this embodiment, the number of fixing columns 330 is, for example, two, which are respectively connected to two ends of the track 310 , and the number of fixing grooves 216 corresponds to the number of fixing columns 330 . In addition, the fixing column 330 is, for example, perpendicular to the first bottom 212 . The carrier 210' can include at least one corner reinforcing block 217, which is connected to the first bottom 212 and two adjacent first side walls 214, preferably integrally formed with the first bottom 212 and the first side walls 214. The above-mentioned positioning groove 216 is, for example, located on the corner reinforcing block 217 so that the fixing column 330 is inserted into the corner reinforcing block 217 . In addition, the material of the fixing column 330 includes expanded polypropylene (EPP), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), glass fiber, polyacetal (POM), or mixing of the aforementioned materials. Materials such as: Acrylonitrile Butadiene Styrene (ABS) plus Polycarbonate (PC) etc.

In this embodiment, the establishment of the fixing column 330 can make the track 310 of the adjustable supporting module 300' be more firmly fixed on the first bottom 212 of the carrier 210'. In addition, the packaging box 200', for example, further includes a cover 220 suitable for being combined with the carrier 210'. The cover 220 is detachably assembled on the first side wall 214 of the carrier 210'. The material of the cover body 220 includes expanded polypropylene (Expanded Polypropylene, EPP), expanded polystyrene (Expandable polystyrene, EPS), polyethylene/polystyrene (PE/PS), or expanded ethylene polymer (EPO) . The accommodating space S1 mentioned above is, for example, formed between the cover 220, the first bottom 212 and the first side wall 214 of the carrier 210'. The setting of the cover body 210' can further improve the effect of protecting the object to be packaged. It should be noted that the packaging box 200 in FIG. 2 may also include the cover 220 .

Although the above-mentioned number of adjustable support modules 300/300' of the packaging box 200/200' is taken as an example, in fact, the packaging box of the present invention may include multiple adjustable supporting modules. Please refer to FIG. 8 , which is a schematic top view of a packaging box according to another embodiment of the present invention. The packaging box 200" of this embodiment is similar to the packaging box 200' of Fig. 7, the difference is that the packaging box 200" includes a plurality of adjustable supporting modules 300', and in this embodiment four Take the adjustable supporting module 300' as an example. These adjustable supporting modules 300' are, for example, arranged beside one of the first side walls 214 of the carrier 210". In addition, the number of these adjustable supporting modules 300' can also be adjusted according to requirements, so that the present The packing box 200" of the embodiment can be used for packing more kinds of objects to be packed.

In the packaging box of the present invention, since the supporting columns are movably arranged on the track, the position and quantity of the supporting columns can be adjusted for different types of flat-panel displays. Therefore, the packing box of the present invention can be used to pack various display panels externally connected with driving circuit boards.

The above descriptions are only illustrative specific implementations of the present invention, and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present invention shall fall within the protection scope of the present invention.

Claims (15)

1. A packaging box, characterized in that, the packaging box contains:

a carrier having a first bottom and a plurality of first sidewalls connected to an edge of the first bottom;

at least one adjustable support module disposed on the first bottom and located beside at least one of the first sidewalls, the adjustable support module comprising:

the rail is fixed at the first bottom and provided with a second bottom and two second side walls connected to two opposite sides of the second bottom, and the second side walls are respectively provided with a plurality of positioning holes; and

at least one support pillar movably disposed on the track, the support pillar comprising:

a column body;

two supporting seats connected to one end of the column, each supporting seat having a first supporting part and a second supporting part, the first supporting part being connected to the end of the column and abutting against the top surface of the second sidewall, and the second supporting part extending from the first supporting part to the second bottom and being located between the second sidewalls; and

two elastic positioning pieces extending from the end of the column to the second bottom and located between the supporting seats, each elastic positioning piece having at least one positioning convex part, and the positioning convex part being engaged in one of the positioning holes.

2. A packing box according to claim 1, wherein said elastic positioning members are respectively opposed to one of said second side walls.

3. A packaging case according to claim 1 wherein the track is inset into the first base.

4. A packaging box according to claim 1, wherein the track is formed by overlapping sub-tracks.

5. A packing case according to claim 1 wherein the positioning holes comprise through holes or blind holes.

6. A packaging case as claimed in claim 1 wherein the locating aperture in one of the second side walls corresponds to the locating aperture in the other of the second side walls.

7. The package box as claimed in claim 1, wherein the adjustable bearing module further comprises at least one fixing post connected to one end of the rail, the carrier is provided with at least one fixing groove, and the fixing post is fixed in the fixing groove.

8. A packaging box, characterized in that, the packaging box contains:

a carrier comprising a first base having a plurality of edges, a plurality of first sidewalls connected to said edges of the first base;

a U-shaped section rail embedded in the first bottom, including a second bottom having two corresponding edges, two second sidewalls connected to the corresponding edges of the second bottom;

a plurality of bearing columns which are movably arranged on the U-shaped section track, respectively comprise a column body provided with a tail end and a tail end opposite to the tail end, two elastic positioning pieces connected to the tail end of the column body and respectively corresponding to the second side walls; and

the cover body is detachably assembled on the first side wall of the carrier and forms an accommodating space with the first bottom and the first side wall of the carrier;

the accommodating space is divided into a main accommodating space and a secondary accommodating space by the U-shaped section rail and the bearing column.

9. A packing box according to claim 8, wherein the second side walls are respectively provided with a plurality of positioning holes.

10. The packing box according to claim 9, wherein the elastic positioning members respectively comprise a positioning protrusion, and the positioning protrusions of the same elastic positioning member are engaged with the corresponding positioning holes of the same second sidewall.

11. The package of claim 8 wherein said carrier further comprises a corner stiffener connected to said first bottom and to two adjacent said first side walls.

12. The package box as claimed in claim 11, further comprising a fixing post inserted into the corner reinforcing block and connected to one end of the U-shaped cross-sectional rail.

13. The package of claim 8 wherein one of said support posts further comprises a first support portion connected to said end of said post.

14. The package box as claimed in claim 13, wherein the support post further comprises a second support portion connected to the first support portion.

15. A packaging case according to claim 14 wherein the second side walls each have an inner side, the inner sides of the second side walls correspond to each other, and the second support portion abuts against the inner sides of the second side walls.

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