CN102152907A - Transportation vessel for plate-shaped object with protrusion on corner - Google Patents

Abstract

The present invention provides a transport container for a plate-shaped object having a protrusion (such as an exhaust pipe) at one corner, which can be used for a plate-shaped object (such as a tube plasma display screen) in a stable posture, and can effectively avoid the contact of the periphery of the plate-shaped object with other components, in addition, it can also reliably prevent the plate-shaped object from moving along the surface due to vibration during transportation. direction to move. This transport container is a container for accommodating a plate-shaped object having a protrusion at one corner, and a corner is formed at one corner of the receiving recess, that is, the corner where the protrusion is located when a plasma display screen with an exhaust pipe is accommodated. through hole. A concave portion is formed along the surrounding side walls, which is not in contact with the accommodated plasma display screen with the exhaust pipe. In addition, concave-shaped corner support walls for laterally supporting the corners of the housed plasma display panel with an exhaust pipe are formed at the four corners of the housing recess.

Description

handling container for a plate with a protrusion at one corner

technical field

The present invention relates to a transport container for a plate-shaped object having a protrusion at one corner, and more particularly to a container for storing and transporting a plate-shaped object having the following form such as a plasma display screen with an exhaust pipe , with a glass substrate and a protrusion at one corner.

Background technique

FIG. 2 shows an example of a plasma display panel (PDP). In the process of manufacturing the plasma display panel (PDP) 1, a necessary process is to extract air from the space formed by combining the front glass substrate and the rear glass substrate 3, and then seal an inert gas into the space. For this reason, as shown in Figure 2, a glass tube with a diameter of about several millimeters called an exhaust pipe 4 is connected to the exhaust port prepared in advance near the corner of the back plate-shaped body 3. Once the gas sealing is completed, the exhaust The trachea 4 is sealed and cut. As a result, as a whole of the plasma display panel (PDP) 1, a sealed exhaust duct portion of about 10-20 mm in length is left on one corner of the plasma display panel 1 as a protrusion.

Plates with glass substrates such as plasma displays are easily damaged by impacts during transportation, and because they are increasing in size year by year, during transportation, as described in Patent Documents 1-4, use synthetic resins. It is a transport container made of foam body, and holds the plate-shaped objects in a horizontal position instead of a vertical position.

Patent Document 1: Japanese Patent Application Laid-Open Publication No. 10-197855

Patent Document 2: Japanese Patent Application Laid-Open Publication No. 2002-353302

Patent Document 3: Japanese Patent Application Laid-Open Publication No. 2004-59116

Patent Document 4: Japanese Patent Application Laid-Open Publication No. 2005-75366

However, the conventional transport containers made of synthetic resin foam for storing plate-shaped objects in a horizontal posture are all made for the purpose of storing and transporting flat plate-shaped objects without protrusions or the like on the surface. As the above-mentioned plasma display panel, generally speaking, a plate-shaped transport container having a protrusion of a predetermined length at a specific part, that is, a corner, cannot be used as it is.

In addition, a plate-shaped object having a glass substrate such as a plasma display panel is an article that must be especially prevented from contacting its peripheral edge with other articles when it is stored and transported. In this regard, conventional transport containers cannot necessarily satisfy the above-mentioned requirements.

The transport tray described in Patent Document 1 only supports the periphery of the plate-shaped object. Although it can properly deal with the existence of surface protrusions, it is not suitable for use as an essential part like a plasma display because of the form of supporting the periphery. In particular, it is necessary to avoid a transport container of a plate-shaped object having a glass substrate, the peripheral portion of which comes into contact with other objects.

Although the tray for conveying plate-shaped objects described in Patent Document 2 can store and convey the plate-shaped objects without supporting the peripheral edge portion thereof, it cannot completely avoid the damage caused by the plate-shaped objects during transportation because it only supports the upper and lower surfaces of the plate-shaped objects. The movement of the surface direction due to the vibration of the vibration may damage the surface.

Although the display board storage tray described in Patent Document 3 has an opening at the bottom, the opening is an insertion hole for a support rod used to lift up the housed display board, and there is no plate-like support for the housed board. Furthermore, the supporting surface is a flat surface, and how to prevent the peripheral edge of the plate from contacting the tray has not been considered.

The glass plate packaging unit described in Patent Document 4 basically stacks and accommodates a plurality of glass plates in a box and conveys them. It is also not the case that the glass plate contained in the research institute has protrusions. The glass plate packing unit described above is a form in which a plurality of glass plates are stacked and conveyed, and does not take into consideration the conveyance of articles whose peripheral edges should not come into contact with other articles.

Contents of the invention

The present invention is made in view of the above-mentioned circumstances, and the object of the present invention is to disclose a transport container, which forms a storage recess capable of storing a plate-shaped object in a horizontal posture with the bottom plate and the surrounding side walls. In the state in the transport container, the transport container is stacked and packaged in multiple layers. The transport container can accommodate a plate-shaped object with a protrusion at one corner in a stable posture, and can effectively avoid the plate-shaped object received. The peripheral edge of the object is in contact with other components. In addition, it can also reliably prevent the plate-shaped object from moving along the surface due to vibration during transportation.

The transport container for a plate-shaped object having a protrusion at one corner of the present invention is a transport container made of foamed resin, and the bottom plate and the surrounding side walls form a storage recess capable of storing the plate-shaped object in a horizontal posture. , in the state of storing the plate-shaped object in the transport container, the transport container is stacked and packaged in multiple layers, characterized in that the above-mentioned transport container is used to accommodate the plate-shaped object in the form of a protrusion at one corner. A through hole is formed at one corner of the above-mentioned receiving recess, which is the corner where the above-mentioned protrusion is located when the above-mentioned plate-shaped object is accommodated, and a hole is formed along the side walls around the above-mentioned four sides that does not contact the accommodated plate-shaped object. In the recess, corner support walls are formed at the four corners of the accommodation recess, and the corner support walls support the corners of the accommodated plate-shaped object from the side.

In the above-mentioned transport container, since a through hole is formed at one corner of the receiving recess, that is, the corner where the above-mentioned protrusion is located when the above-mentioned plate-shaped object is housed, the bottom face of the receiving recess can have a protrusion at one corner. The posture of supporting the plate-shaped object of the form can accommodate the plate-shaped object stably, and it is also possible to stack the above-mentioned transport containers in multiple layers. In addition, since a concave portion is formed along the peripheral sidewalls that does not come into contact with the accommodated plate-shaped object, even a plate-shaped object with a glass substrate whose peripheral portion should not be in contact with other members, such as a plasma display panel, It can also be stored and transported without hindrance.

In addition, since the corner support walls that support the corners of the plate-like objects to be accommodated from the side are formed at the four corners of the storage recess, even when the lateral force acts irregularly due to vibration during transportation, It is also possible to reliably prevent the accommodated plate-shaped object from moving along the surface direction, thereby reliably avoiding damage to the surface.

A preferred technical solution of the present invention for a transport container having a protruding plate-like object is characterized in that there are first protrusions on the bottom surface side of the four corners, and the first convex portion on the upper surface side is the same as the above-mentioned first protrusion. A position corresponding to a convex portion has a concave portion corresponding to the shape of the first convex portion, and a second convex portion is provided on the bottom surface, and the second convex portion protrudes downward to the same position as the lower end of the first convex portion. Height; the depth of the above-mentioned receiving recess is set so that when the containers are stacked, the surface of the plate-shaped object accommodated in the lower container is in contact with the above-mentioned second convex portion of the upper container .

With this type of transport container, not only is the posture of stacking stable, but also the accommodated plate is reliably held by the upper surface of the receiving recess of the lower transport container and the lower surface of the second convex portion of the upper transport container. , the posture of the contained plate is more stable.

According to another technical solution of the present invention for a transport container with a protruding plate at one corner, at least one of the four first protrusions and depressions is separated from other first protrusions and depressions. The shape of the convex part and the concave part is different, so that when the overlapping is performed by changing the direction of 180 degrees, due to the first convex part and the concave part of the above-mentioned different shapes, a certain angle between the upper and lower transport containers A gap is formed at the part.

With this technical solution, by checking whether there is a larger gap at the corner than other corners, it can be easily seen from the outside whether a specific transport container overlaps with other transport containers with a direction difference of 180 degrees. Shipping in an incorrect packing state can thus be reliably avoided.

In the transport container of the above-mentioned technical solution, it is preferable to set the dimensions of the above-mentioned first convex portion and the above-mentioned second convex portion so that when the transport container is viewed from at least one side, the first convex portion and the second convex portion A space through which the fastening tool can pass is formed between the parts. According to this aspect, by utilizing the space through which the above-mentioned fastening tool can pass, it is possible to easily and reliably fix the transport containers stacked in layers with the fastening tool such as the fastening belt.

According to another technical solution of the present invention for a transport container with a protruding plate at one corner, at least one of the side walls around the transport container is formed with a mark that can be visually recognized from the outside, so as to be able to When stacking containers, visually confirm that they are stacked in the correct orientation.

According to this technical solution, when the directions of a specific transport container and other transport containers are erroneously overlapped by 180 degrees, it is possible to simply visually confirm that the above-mentioned marks are not aligned. When stacking transport containers with corners of different shapes and changing their direction by 180 degrees, the corners may be damaged by the weight of the upper load, but in the case of transport containers with four corners of the same shape, even if the Even when stacking is performed while changing the direction by 180 degrees, such damage will not occur, and by visually checking whether the marks are aligned from the outside, transport containers stacked in the wrong direction can be reliably found.

Another technical solution of the transport container for a board-shaped object having a protrusion at one corner of the present invention is characterized in that a part of the concave portion formed along the surrounding side walls does not come into contact with the accommodated board-shaped object. It is composed of a first concave portion and a second concave portion, and a convex portion having the same height as the receiving concave portion is interposed between the first concave portion and the second concave portion.

According to this technical solution, it is possible to share two types of plate-shaped objects, namely, a plate-shaped object having a size in which the peripheral portion is located in the first recess area and a plate-shaped object having a size in which the peripheral portion is located in the second recess area.

The carrying container for a plate having a protrusion at one corner of the present invention is made of foamed resin. Preferably, it is produced by molding foamed particles of thermoplastic resin in a mold. More preferably, foamed composite resin particles containing a styrene-based resin and an olefin-based resin are used. The composite resin containing styrene-based resin and olefin-based resin is obtained by impregnating and polymerizing styrene-based monomers in polyolefin-based resin particles. Among the composite resins of styrene-based resins and olefin-based resins, preferably composite resins of styrene-based resins and ethylene-based resins, for example, the weight percent of the styrene component is 40%-90%, preferably 50%-by weight. 85%, more preferably 55%-75% by weight, the magnification of the foam is preferably 3-60 times. Products molded with composite foamed resin particles containing styrene-based resin and olefin-based resin have higher strength than products molded with polypropylene-based resin with the same expansion ratio, and also have low shrinkage and high dimensional accuracy. Therefore, the error in size is small. In addition, it has the advantage that dust is less likely to be generated due to friction, etc., compared with products foamed and molded with polystyrene resin.

According to the present invention, it is possible to obtain a transport container capable of accommodating a plate-shaped object having a protrusion at one corner in a stable posture. In addition, it is possible to obtain a transport container that can effectively prevent the peripheral edge of the accommodated plate-shaped object from contacting other members, and reliably prevent the plate-shaped object from moving in the surface direction due to vibration during transport.

Description of drawings

Fig. 1 is a perspective view of a transport container for a plate-like object having a protrusion at one corner according to the present invention viewed from above.

Fig. 2 is a diagram for explaining a storage target, that is, a plate-shaped object having a protrusion at one corner.

Fig. 3 is a plan view of the transport container shown in Fig. 1 .

FIG. 4 is a rear view of the handling container shown in FIG. 1 .

(a) of FIG. 5 is a side view of the transport container shown in FIG. 1, and (b) of FIG. 5 is a side view showing a state in which the transport containers are stacked in layers.

(a) of FIG. 6 is a sectional view taken along line a-a in FIG. 3 , and (b) of FIG. 6 is a partially enlarged view.

Fig. 7 is a sectional view taken along line b-b in Fig. 3 .

(a) of Fig. 8 is a partial view, which shows the state of accommodating a plate-shaped object with protrusions at one corner in the transport container, and (b) of Fig. 8 shows the state of placing the transport container on top of it. diagram.

Detailed ways

Hereinafter, the present invention will be described based on specific embodiments with reference to the drawings. In this example, the transport container 20 is an integrally molded product obtained by foam-molding expandable composite resin particles containing a styrene-based resin and an olefin-based resin in a mold.

The conveyance container 20 has a bottom plate 21 and surrounding side walls 22 , and a storage recess 23 capable of accommodating a plate-shaped object in a horizontal posture is formed on the upper surface of the bottom plate 21 . In this example, the housed plate-shaped object refers to the plasma display panel 1 with an exhaust pipe explained based on FIG. 2 . Recessed corner support walls 24a-24d are formed at the four corners of the receiving recess 23, and these corner support walls 24a-24d can be put into the four corners 5a of the plasma display screen 1 with the exhaust pipe. -5d, and support it laterally.

In addition, in this example, as shown in FIG. 2, the plasma display screen 1 with exhaust pipe has peripheral portions 6a-6d extending outside the above-mentioned corner portions 5a-5d, and the entire front end portion of the peripheral portions 6a-6d Or a part of the front end portion is an area that should avoid contact with other members.

In the illustrated example, a through hole 25 is formed in a region adjacent to the inner side of the upper left corner support wall 24 a. More specifically, the position of the through hole 25 is when the plasma display screen 1 with the exhaust pipe shown in FIG. location. Further, the vertical length of the through hole 25 , that is, the thickness of the bottom plate 21 in the region where the recessed portion 23 is accommodated is longer (thicker) than the length of the exhaust pipe 4 described above. In addition, the plasma display screen 1 with the exhaust pipe can also be accommodated in the above-mentioned accommodating recess 23 with the posture of the exhaust pipe 4 facing downward. In this case, the above-mentioned through hole 25 is formed in the corner adjacent to the upper right The area inside the support wall 24b, or the area inside the corner support wall 24d adjacent to the lower left.

Recesses 26 a , 26 b are formed along the side walls 22 in regions along the above-mentioned peripheral side walls 22 of the housing recess 23 . The recesses 26a, 26b are provided in order not to allow the front end areas of the peripheral portions 6a-6d of the plasma display screen 1 with an exhaust pipe accommodated in the accommodation recess 23 to contact the transport container 20, and it is considered that the contained The shape of the forbidden contact area on the plasma display screen 1 of the exhaust pipe is formed appropriately. In the illustrated example, the recess 26b formed on the side wall in the longitudinal direction is wider than the recess 26a formed on the side wall in the width direction, and a recess having the same height as the storage surface of the receiving recess 23 is formed at an approximately middle position of the recess 26b. The ribs 27 (also refer to FIG. 7 ). In this way, the same transport container 20 can accommodate two types of plasma display panels 1 with exhaust pipes 1 having different widths so that the front end regions of the peripheral edges 6 a and 6 c do not come into contact with the transport container 20 .

The transport container 20 has first protrusions 29 a - 29 d extending downward from the bottom surface 28 of the bottom plate 21 at the four corners. As shown in FIG. 4, among the first protrusions 29a-29d, the two first protrusions 29a and 29b have the same shape as each other, and are constituted by legs 30 having substantially the same thickness as the side wall 22 and bent at 90 degrees. The remaining two first protrusions 29c and 29d have the same shape as each other, but are different from the above-mentioned first protrusions 29a and 29b. Here, the two first projections 29 c and 29 d are formed by the above-mentioned part of the leg 30 and the protrusion 31 filling the corner region of the leg 30 .

As shown in FIG. 3, recessed portions 32a-32d are formed at the four corners on the front side of the transport container 20, and these recessed portions 32a-32d have shapes into which the above-mentioned first convex portions 29a-29d can be inserted. The two recessed portions 32a-32d are identical in shape to each other, and are formed by the side wall removal portion 33 obtained by removing the side portion 22 along the shape of the leg 30 of the above-mentioned first convex portion 29a and 29b. The remaining two recessed portions 32c and 32d have the same shape as each other and are formed by the above-mentioned side wall removal portion 33 and the chamfered portion 34 having a shape into which the above-mentioned protruding portion 31 can protrude.

On the bottom surface 28 of the bottom plate 21 of the transport container 20, a second convex portion 35 protruding downward to the same height as the lower end portion of the first convex portion 29 is formed. And, as shown in FIG. 5 or FIG. 7 , the size of the second convex portion 35 is formed so that when the transport container 20 is viewed from the side, it is formed between the above-mentioned first convex portion 29 and the above-mentioned second convex portion 35 so as to make it tight. The space 36 through which the fixture (not shown) passes.

In addition, as shown in FIG. 8( b), the depth of the above-mentioned receiving recessed portion 23 is set so that when the transport containers 20 are stacked, the bottom surface of the second convex portion 35 of the upper transport container 20b and the bottom surface of the second convex portion 35 of the upper transport container 20b are stored in the lower position. The upper surface of the plasma display screen 1 with the exhaust pipe in the transport container 20a is in contact with.

In this example, there is a longitudinal notch 37 on one side wall outer peripheral surface of the transport container 20, and there are an appropriate number of inwardly protruding first slits 37 on the lower ends of the four side wall outer peripheral faces of the transport container 20. Two cutouts 38 .

Next, an operation procedure for accommodating the plasma display panel 1 with an exhaust pipe shown in FIG. 2 in the above-mentioned transport container 20 as a plate transport object will be described.

Initially, as shown in FIG. 8( a ), a plasma display panel 1 with an exhaust pipe is accommodated in the accommodation recess 23 of the transport container 20 a with the exhaust pipe 4 facing upward. At this time, the direction of the plasma display screen 1 with the exhaust pipe is adjusted so that the four corners 5a-5d can extend into the reentrant corner support walls 24a-24d formed at the four corners of the receiving recess 23, And the exhaust pipe 4 is positioned at the corner portion where the through hole 25 is formed. Thereby, the plasma display panel 1a with an exhaust duct is housed in a horizontal state with the front glass substrate 2 in contact with the front side of the housing portion 23 .

As shown in FIG. 8( b ), another upper transport container 20 b is stacked in the same direction on top of the lower transport container 20 a containing the plasma display panel 1 with the exhaust pipe. As shown in Figure 8 (a), although the exhaust pipe 4 of the plasma display screen 1 with the exhaust pipe protrudes upward from the upper surface of the accommodating recess 23, but because this protruding part stretches into the upper Since the transport container 20b is held in the through-hole 25 formed in it, stacking of the transport containers 20 will not be hindered, and the exhaust pipe 4 will not be damaged. In addition, when storing, it is preferable that a non-foaming or very low-foaming resin film or sheet (not shown) is interposed between the container and the upper and lower surfaces of the plasma panel with exhaust pipe 1 .

In the accommodating recess 23 of the upper carrier container 20b, accommodate the plasma display panel 1 with the exhaust pipe in the same way, and then place the carrier container 20 on top of the upper carrier container 20b, and repeat such operations until reaching The number of layers required. Its state is shown in Fig. 5(b).

In the above-mentioned plate conveyance, since the four corners 5a-5b of the plasma display screen 1 with the exhaust pipe are firmly fixed from the side by the four corner support walls 24a-24d on the lower transport container 20a Supported, so the movement of the plasma display screen 1 with the exhaust pipe along the surface direction is reliably prevented. In addition, since the upper surface of the housed plasma panel 1 with an exhaust pipe is pressed by the second convex portion 35 of the upper transport container 20b, the vertical movement of the plasma panel 1 is reliably prevented. In addition, the vicinity of the front end of the peripheral portion of the stored plasma display panel 1 with an exhaust pipe does not come into contact with the transport container.

Furthermore, as shown in FIG. 5( b), when all the transport containers 20 are stacked in the correct direction, each of the above-mentioned notches 37 formed longitudinally on the outer peripheral surface of one side wall is arranged in a vertical line. straight line. In the case where one or more transport containers 20 are placed on top of each other with their directions changed by 180 degrees, the notches 37 on the transport containers 20 are located on the opposite side. In either case, since the operator can easily grasp the state from the outside, it is possible to easily and reliably prevent storage or transportation of the transfer containers 20 piled up in wrong postures.

In addition, in the above-mentioned embodiment, since the above-mentioned first convex portion 29 and the concave portion 32 having a shape into which the first convex portion 29 can extend have at least one first convex portion 29 and the concave portion 32 with other first convex portions. 29 and the recessed portion 32 are different in shape, so when the direction of one transport container 20 is changed by 180 degrees and stacked, the first convex portion 29 of the upper transport container cannot just extend into the lower transport container. In the above-mentioned recessed portion 32 above, a gap is generated between the lower and upper transport containers. Since the operator can easily see this gap from the outside, it is also possible to easily and reliably prevent storage or transportation of the transportation containers 20 stacked in an erroneous manner from this point of view.

In addition, in the lowermost transport container 20, since the space 36 formed between the above-mentioned first convex portion 29 and the above-mentioned second convex portion 35 is exposed to the outside, it is possible to use this place to let the fastening tape pass through, so that the plate The packing operation of the bulky objects is also facilitated.

In addition, by inserting a suitable tool into the second notch portion 38 formed on the lower end portion of the outer peripheral surface of the four side walls and protruding inward, it is also possible to easily transfer the transport containers 20 one by one from the plate shape. The operation of taking out of the object to be transported.

Claims (6)

1. A transport container for a plate-shaped object having a protrusion at one corner, the transport container is a transport container made of foamed resin, and is formed with a bottom plate and surrounding side walls capable of holding the plate-shaped object in a horizontal manner In the storage recess for posture storage, the conveying container is stacked and packaged in a state where the plate-shaped object is accommodated in the conveying container, and is characterized in that, The above-mentioned transport container is used to accommodate a plate-shaped object having a protrusion at one corner, A through hole is formed in one corner of the receiving recess, which is the corner where the protrusion is located when the plate-like object is housed, A concave portion not in contact with the accommodated plate-like object is formed along the side walls around the above-mentioned four sides, Corner support walls are formed at the four corners of the storage recess, and the corner support walls support the corners of the accommodated plate-shaped object from the side. 2. The transport container for a plate having a protrusion at one corner according to claim 1, wherein: There are first protrusions on the bottom surface side of the four corners of the transport container, and there are recesses corresponding to the shape of the first protrusion on the upper surface side of the transport container at positions corresponding to the first protrusions. There is a second convex portion on the bottom surface of the transport container, and the second convex portion protrudes downward to the same height as the lower end of the first convex portion; When stacked, the surface of the plate-shaped object accommodated in the lower conveyance container comes into contact with the above-mentioned second convex portion of the upper conveyance container. 3. The transport container for a plate having a protrusion at one corner according to claim 1 or 2, wherein: At least one of the four first protrusions and depressions is different in shape from the other first protrusions and depressions, so that when the direction is changed by 180 degrees for overlapping, due to the above shape Due to the different first protrusions and recesses, a gap is formed at a certain corner between the upper and lower transport containers. 4. A transport container for a plate having a protrusion at one corner according to claim 2 or 3, wherein The dimensions of the above-mentioned first convex portion and the above-mentioned second convex portion are set such that when the transport container is viewed from at least one side, there is formed between the above-mentioned first convex portion and the above-mentioned second convex portion. through space. 5. A handling container for a plate having a protrusion at one corner according to any one of claims 1 to 4, wherein At least one of the side walls around the transport container is provided with a visually recognizable mark from the outside, so that when the transport containers are stacked, it can be visually confirmed whether they are stacked in the correct direction. 6. A handling container for a plate having a protrusion at one corner according to any one of claims 1 to 5, wherein Part of the recess formed along the surrounding side walls in order not to come into contact with the plate-shaped object to be accommodated is constituted by a first recess and a second recess, and the recess having the same height as the receiving recess is sandwiched between the first recess and the second recess. of the convex part.

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