JP2002068348A - Panel packaging box for cathode ray tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a panel packaging box for cathode ray tube wherein a corner portion of a seal edge surface can be prevented from being broken. SOLUTION: In the panel packaging box for cathode ray tube wherein a panel 4 is horizontally set and stored by providing buffer materials to support the panel 4, with the seal edge surface 4c thereof being facing downward, the buffer materials are used to support the surface 4c to be stored, excluding four corner portions 4d thereof. The panel 4 to be stored is suitably applied to a flat panel having a flat external surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a flat-panel type CRT panel packaging box for storing a CRT panel with its sealing edge face down in order to prevent damage to the surface of the CRT panel. is there.

[0002]

2. Description of the Related Art Conventionally, in a flat-panel type CRT panel packaging box (not shown), a support surface of a cushioning material for supporting a seal edge surface of a panel to be stored is flat. The internal dimensions of the cushioning material are formed slightly larger than the external dimensions of the panel in order to facilitate storage and removal of the panel. For this reason, the panel accommodated in the packaging box with the cushioning material interposed therebetween has a small gap around it, and the panel can be shifted with respect to the cushioning material during transportation or the like by the gap.

The panel accommodated in the packaging box is formed by supplying a predetermined amount of molten glass lump (glass gob) to a mold and press-molding the panel. The shape of the panel is as shown in FIG. A substantially rectangular face portion 4a;
and a skirt portion 4b extending rearward from the peripheral edge portion a. The face portion 4a serves as an image display portion. Conventionally, as shown in FIG. 5B, the outer surface of the face portion 4a has a convex spherical shape. As shown in FIG. 5C, a panel (referred to as a flat panel) in which the outer surface of the face portion 4a is substantially flat has been manufactured. The skirt portion 4b is formed to extend substantially perpendicularly to the back side from the peripheral portion of the face portion 4a via the blend portion, and has a seal edge for joining with a funnel (not shown) on its end surface. The surface 4c is formed. Although the seal edge surface 4c has a substantially rectangular planar shape, there are corners 4d at four corners connecting two adjacent sides with an arc. Compressive stress and tensile stress are generated in the CRT panel due to the temperature change of glass at the time of molding. It is likely to occur on the outer peripheral side of each corner 4d of the surface 4c.

In particular, in the above-mentioned flat panel, a high compressive stress is formed in the panel in order to compensate for a reduction in strength due to flattening, and accordingly, a high tensile stress is applied to each corner 4d. Is more likely to occur.

[0005]

In the conventional CRT panel packaging box, since the sealing edge support surface of the cushioning material is flat, the seal edge surface 4c of the panel 4 has four corners on this flat support surface. Is stored in a state of contact with the entire surface including the corner portion 4d. And the stored panel 4 is
In the packaging box, as described above, the cushioning material can be displaced by an amount corresponding to the gap, so that in any process, hard small particle foreign matters such as dust and dust and the like can be removed. When it enters the inside, it is caught between the seal edge surface 4c of the panel 4 and the support surface of the cushioning material, and is displaced by vibration or other influence generated during transportation or the like, thereby causing the seal edge surface 4c of the panel 4 to move. The corner portion 4d may be damaged. Such a scratch is caused by the sealing edge surface 4 of the panel 4.
When this occurs at the corner 4d of c, since the tensile stress is concentrated on the corner 4d of the seal edge surface 4c, the panel 4 tends to be easily cracked and broken starting from the scratch. .

In particular, as described above, in the case of the panel 4 having a flat outer surface of the face portion 4a, the sealing edge surface is compared with the case of the panel 4 having the face portion 4a having a convex spherical surface. Since the concentration of the tensile stress on the outer peripheral side of each corner portion 4d of 4c is more likely to occur, the above problem becomes more remarkable.

Accordingly, an object of the present invention is to provide a panel packaging box for a cathode ray tube which can prevent breakage of a corner portion of a seal edge surface.

[0008]

In order to achieve the above object, a panel packaging box for a cathode ray tube according to the present invention has a substantially rectangular panel with a sealing edge face down, and a cushioning material for supporting the panel is provided in the packaging box. Sealing edge excluding the four corners of the panel sealing edge surface to be stored in a CRT panel packaging box of the type in which the panel is stored flat in the packaging box, interposed between the box bottom and the sealing edge surface of the panel It is characterized by using a cushioning material for supporting the surface.

Further, in the panel packaging box for a cathode ray tube of the present invention, the cushioning material is arranged so as to contact two adjacent corners of the rectangular packaging box and a side wall located between the two corners. It is composed of two symmetrical peripheral pads having a substantially U-shaped planar shape, and holes or recesses are formed in the peripheral pads to make the four corners of the panel seal edge surface non-contact. It is characterized by having.

Further, in the CRT panel packaging box of the present invention, the cushioning material comprises a rectangular bottom plate laminated on the box bottom of the rectangular packaging box, and a bottom pad adhered on the bottom plate. The bottom pad is formed with a notch or a recessed step for making the four corners of the panel seal edge surface non-contact.

Further, in the panel packaging box for a cathode ray tube according to the present invention, the cushioning material abuts on two adjacent corners of the rectangular packaging box and a side wall located between the two corners. It is composed of two symmetrical side wall pads having a substantially U-shaped planar shape and a paper tube fitted into each of the side wall pads so as to connect the substantially U-shaped open side, A gap is formed between the side wall pad and the paper tube so as to make the four corners of the panel seal edge surface non-contact.

The present invention is more suitable when the panel to be accommodated is applied to the packaging of a flat panel having a face portion with a substantially flat outer surface. Here, the substantially flat outer surface means that the average radius of curvature in the diagonal axis direction of the panel is 10,000 mm or more.

[0013]

According to the above-mentioned structure, the panel accommodated in the packaging box is supported by the cushioning edge support portion of the cushioning material with the four corners of the seal edge surface in a non-contact state. In addition, it is possible to eliminate the foreign matter in the form of hard small lump particles between the corner portion of the seal edge surface and the cushioning material. Accordingly, it is possible to prevent the generation and breakage of the scratch at the corner portion of the seal edge surface of the panel. Note that the panel is supported in contact with the cushioning material in a required area by the remaining seal edge surface excluding the corner portion of the seal edge surface, so that there is no fear of becoming unstable.

[0014]

Embodiments of the present invention will be described below with reference to embodiments shown in the drawings. FIG. 1A is a plan view showing an example of a CRT panel packaging box of the present invention,
2 (B) and 2 (C) are enlarged cross-sectional views of a main part schematically showing a different embodiment of the present invention when cut along a line DD in FIG. 2 (A), and FIG. Plan views showing another example of a panel packaging box for a cathode ray tube, and (B) and (C) are main parts schematically showing different embodiments of the present invention when cut at the position of line DD in FIG. FIG. 3 (A) is an enlarged cross-sectional view, FIG. 3 (A) is a plan view showing still another example of the CRT panel packaging box of the present invention, and FIGS. 3 (B) and 3 (C) are cut along the line DD in FIG. FIG. 4 is a schematic perspective view for explaining an example of a packaging form of a CRT panel packaging box according to the present invention, and FIG. ) Is a schematic perspective view of the panel, and (B) and (C) show a panel having a convex spherical outer surface and a panel having a flat outer surface. It is a schematic vertical side view.

1, 2, 3 and 4, 1 is a packaging box, 2 is a peripheral pad, 3 is a side wall pad, 4 is a panel,
Reference numeral 5 denotes a pallet, 6 denotes an outer box, 7 denotes an inner lid, 8 denotes an upper lid, 9 denotes a bottom pad, and 10 denotes a reinforcing side plate.

In the present embodiment, the packaging box 1 exemplifies a case in which only one panel 4 is stored flat, so that the shape thereof corresponds to the external dimensions of the panel 4 to be stored, and Peripheral pad 2, bottom pad 9, reinforcing side plate 10,
Alternatively, it is manufactured in a rectangular box shape having an inner dimension enabling insertion of the side wall pad 3 and has a box bottom 1a and a side wall 1b, and the height of the side wall 1b is more predetermined than the height of the top of the panel 4. The height is increased by the dimension to prevent the face portion 4a of the panel 4 to be stored from being damaged.

In the embodiment shown in FIG. 1, the peripheral pad 2, in the embodiment shown in FIG. 3, the side wall pad 3 is provided on both sides of the short side including the corners of the panel 4 accommodated in the packaging box 1 and the outer side of the packaging box 1. It is inserted between the inner surfaces on both sides of the short side including the corner, thereby preventing the horizontal movement of the panel 4 in the packaging box 1 in the horizontal direction. Further, the peripheral pad 2 or the side wall pad 3 is composed of two symmetrically shaped members having a substantially U-shaped planar shape. In this embodiment, a gap can be formed between both long sides of the panel 4 and the packaging box 1, and the panel 4 can be easily taken in and out of the packaging box 1.

In the embodiment shown in FIG. 2, an example of a cushioning material comprising a rectangular bottom plate 9a laminated on the box bottom 1a and a bottom pad 9 adhered on the bottom plate 9a is shown. A reinforcing side plate 10 is inserted between the side wall 1b of the packaging box 1 and the panel 4 in order to supplement the strength of the side wall 1b. However, as long as the strength of the side wall portion 1b of the packaging box 1 is sufficient to protect the panel 4 in which it is stored, the reinforcing side plate 10 is not necessarily required.

In this embodiment, the packaging box 1, the paper tube 3a, the outer box 6, the inner lid 7, the upper lid 8, and the reinforcing side plate 10 are made of corrugated cardboard, and the peripheral pad 2, the side wall pad 3, and the bottom pad 9 are made of styrene. However, in consideration of the shock absorption from the outside to the panel 4 and the strength of the packaging box 1, all are made of cardboard,
Alternatively, all may be made of styrene, and a material such as a synthetic resin may be used as appropriate.

The features of the present invention are as follows:
As shown in FIGS. 1 to 3, a peripheral pad 2, a bottom pad 9, or a side wall serving as a cushioning material interposed on a box bottom 1 a of a packaging box 1 with respect to a corner 4 d of a sealing edge surface 4 c of a panel 4 to be stored. The pad 3 has the seal edge surface 4c
Hole 2b, recess 2 for making corner 4d of
c, a notch 9c, a concave step 9d, or a gap 3b.

The planar shape of the hole 2b, the concave portion 2c, the notch 9c, the concave step 9d, or the gap 3b is not limited as long as the four corners 4d of the panel seal edge surface 4c can be brought into a non-contact state. Such a shape may be used. For example, it can be circular, oval, square, rectangular, or any other shape.

In the embodiment shown in FIG. 1, the bottom surface 2a of the peripheral pad 2 which is a seal edge surface support portion is formed such that the corner corresponding to the corner portion 4d of the panel seal edge surface 4c has a short side of a rectangular packaging box. With a shape cut with a straight line almost parallel to the long side and a straight line at an angle of 45 degrees to them,
An example is shown in which the cut portion is formed so as to be located inside the corner portion 4d of the panel seal edge surface 4c.

In the embodiment shown in FIG. 2, the bottom pad 9, which is a seal edge surface support, is attached to the short side and the long side of the rectangular packaging box at the corner corresponding to the corner 4d of the panel seal edge 4c. In this example, a cutout shape is formed by cutting a straight line at an angle of approximately 45 degrees, and the cutout portion is formed so as to be located inside the corner portion 4d of the panel seal edge surface 4c.

In the embodiment shown in FIG. 3, the paper tube 3a of the side wall pad 3, which is the seal edge surface support portion, is brought into non-contact with both short sides including the corner portion 4d of the panel seal edge surface 4c. This example illustrates a case in which the substantially U-shaped open side is fitted so as to be connected substantially parallel to the short side of the rectangular packaging box to form a substantially rectangular planar gap 3b. The cross-sectional shape of the paper tube 3a can be appropriately selected, such as a circle shown in FIG. 3B or a rectangle shown in FIG.

FIG. 4 shows an outline of the packing form of the present embodiment illustrated in FIG. 1. An outer box 6 is placed on a pallet 5 and the packing box 1 of the above embodiment is placed in the outer box 6. Two pieces are inserted and arranged side by side, and this is used as a first stage, and a predetermined number of stages (for example, five stages) are stacked and placed from the second stage to the uppermost stage. From the top to the immediately preceding packaging box 1 in each case, the top lid 8 is covered on the top packaging box 1 and finally covered with a packaging film or the like. And tightened to form a package. The inner lid 7 has a flap 7a as shown in FIG. 1 to FIG. 3B or FIG.
The flap portion 7a prevents the two packaging boxes 1 and 1 arranged in each stage from shifting in the horizontal direction, and also prevents the two packaging boxes 1 and 1 placed on the upper stage from being displaced horizontally. It is configured to prevent deviation in direction. That is, the inner lid 7
Is also straddled over the two packaging boxes 1, 1 arranged in each stage. The upper lid 8 is the same as the outer box 6 and is used in an inverted manner.

Although FIG. 4 does not show the panel 4, the panel 4 is stored in the packaging box 1 in the previous process, transported to this packing position, and the packing operation is performed in the manner described above. It is. FIG. 4 schematically shows a packing form using the present embodiment illustrated in FIG.
Alternatively, in the case of the present embodiment illustrated in FIG.

Since the embodiment of the CRT panel packaging box of the present invention has the above-described configuration, the panel 4 accommodated in the packaging box 1 has the four corners of the seal edge surface 4c with the corners 4d not being formed. In contact, it is supported by the cushioning material. Therefore, the corner portion 4 of the panel seal edge surface 4c
Since it is possible to eliminate the bite of hard small lumpy particles and the like between d and the cushioning material, the panel seal edge surface 4c
Can be prevented from being scratched or damaged at the corner 4d. The hole 2b, concave portion 2c, notch 9c, concave step 9d, or gap 3b provided in the cushioning material corresponds to the corner 4d of the panel seal edge surface 4c, and the panel 4 is formed on the remaining seal edge surface 4c. Therefore, a sufficient supporting area can be secured by appropriately selecting an embodiment of the present invention depending on the size and weight of the panel 4.

In the above-described embodiment, the case where only one panel 4 is stored in the packaging box 1 is exemplified. However, even in the case where two or more panels are stored separately, the number of panels stored in accordance with the number of panels to be stored may be adjusted. The present invention can be applied by arranging the same cushioning material as exemplified in this embodiment.

In the present invention, the concept of the packaging box 1 includes a transport container between the processing steps of the panel 4 and a panel 4 from the time after the panel 4 is press-formed until the panel 4 is packed.
It also includes a container for storing or storing the same, and has the same function and effect when applied to those cushioning materials.

[0030]

According to the present invention, the panel accommodated in the packaging box is supported by the cushioning material in a state where the four corners of the seal edge face are not in contact with each other. It is possible to eliminate the biting of hard foreign particles in the form of hard lumps between the material and the cushioning material. Therefore, it is possible to prevent the generation and breakage of scratches at the corners of the panel seal edge surface. In addition, since the panel is supported in contact with the cushioning material by most of the remaining seal edge surface except the corner portion of the seal edge surface, a sufficient support area is secured,
Don't worry about instability.

Further, the CRT panel packaging box of the present invention is more suitable when the panel to be stored is applied to the packaging of a flat panel having a substantially flat outer surface face portion.

[Brief description of the drawings]

FIG. 1A is a plan view showing an example of a panel packaging box for a cathode ray tube according to the present invention, and FIGS. 1B and 1C are D in FIG. 1A.
It is a principal part expanded sectional view which shows the outline of a different Example of this invention when it cut | disconnects at the -D line position.

2A is a plan view showing another example of the panel packaging box for a cathode ray tube according to the present invention, and FIGS. 2B and 2C are books cut along the line DD in FIG. 2A. It is an important section expanded sectional view showing an outline of a different example of the present invention.

FIG. 3 (A) is a plan view showing still another example of the panel packaging box for a cathode ray tube of the present invention, and FIGS. 3 (B) and 3 (C) are (A).
It is an important section expanded sectional view showing an outline of a different example of the present invention when cut at the DD line position in the figure.

FIG. 4 is a schematic perspective view for explaining an example of a packaging form of a CRT panel packaging box of the present invention.

FIG. 5A is a schematic perspective view of a panel, and FIGS. 5B and 5C are schematic longitudinal side views of a panel having a convex spherical surface and a panel having a flat surface.

[Explanation of symbols]

 Reference Signs List 1 packaging box 1a box bottom 1b side wall 2 peripheral pad 2a bottom 2b hole 2c recess 3 side wall pad 3a paper tube 3b gap 4 panel 4a face 4b skirt 4c seal edge 4d corner 5 pallet 6 outer box 7 inner lid 7a Flap 8 top lid 9 bottom pad 9a bottom plate 9b top surface 9c notch 9d concave step 10 reinforcement side plate

Claims (5)

[Claims] 1. A substantially rectangular panel with a sealing edge face down, a cushioning material supporting the panel interposed between a box bottom of the packaging box and the sealing edge face of the panel, and the panel is placed flat in the packaging box. What is claimed is: 1. A CRT panel packaging box, wherein a cushioning material is used to support a sealing edge surface except for four corners of a panel sealing edge surface to be stored. 2. A substantially U-shaped planar shape in which the cushioning material is disposed so as to abut two adjacent corners of a rectangular packaging box and a side wall located between the two corners. 2. A peripheral pad having a symmetrical shape and having a hole or a recess formed in the peripheral pad to make the four corners of the panel seal edge surface non-contact. Panel packaging box for CRT described. 3. The cushioning material comprises a rectangular bottom plate laminated on a box bottom of a rectangular packaging box, and a bottom pad adhered on the bottom plate. 2. A CRT panel packaging box according to claim 1, wherein a notch or a recessed step is formed to make the four corners non-contact. 4. A substantially U-shaped planar shape in which the cushioning material is disposed so as to contact two adjacent corners of a rectangular packaging box and a side wall located between the two corners. And a paper tube fitted so as to connect the substantially U-shaped open side to each of the side wall pads, and between the side wall pad and the paper tube. 2. A CRT panel packaging box according to claim 1, wherein a gap is formed to make the four corners of the panel seal edge surface non-contact. 5. The CRT panel packaging box according to claim 1, wherein the panel is a flat panel having a substantially flat face portion on an outer surface.