JP2007308190A - Packaging structure for thin-typed electronic equipment and cushioning member for use therein - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging structure which enables a man to do packaging work efficiently. <P>SOLUTION: The packaging structure consists of a bottom case 2 covering the lower section of a thin-type electronic equipment, the upper case, which is mounted on the periphery of the bottom case 2, covering the whole thin-typed electronic equipment, the second cushioning member 5 made of a foaming material which is inserted into the center section of the bottom case 2 and supports the lower section of the thin-type electronic equipment, and the rest. By engaging a pawl 21c formed on a sidewall 21 of the bottom case 2 with a hole 5c formed in the second cushioning member 5, the sidewall 21 can be pulled inward so as to prevent its interference with the upper case and consequently make packaging work efficient when mounting the upper case on the periphery of the bottom case 2. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a packaging structure for a thin electronic device for packaging a thin electronic device such as a liquid crystal display device, and a cushioning material used therefor.

  Conventionally, a packaging case made of corrugated cardboard and a cushioning material made of foamed resin have been used for packaging liquid crystal display devices. In general, the cushioning material is inserted into the corner of the packaging case and supports the end of the liquid crystal display device. However, in the packaging of liquid crystal display devices whose screens are increasing in size in recent years, the strength of the packaging case is reduced. In order to ensure and protect the liquid crystal display device from impacts and the like effectively, a packaging structure is used in which a cushioning material is additionally inserted into the center of the upper and lower ends of the packaging case.

  FIG. 8 shows a packaging structure for such a conventional liquid crystal display device. The packaging structure 100 includes a bottom case 102 that covers the lower portion of the liquid crystal display device D, an upper case 103 that is attached to the outer periphery of the bottom case 102 and covers the entire liquid crystal display device D, and a first cushioning material that is inserted into the bottom case 102. 104, the second buffer material 105, the third buffer material 106 inserted into the upper case 103, and the like. The first buffer material 104 supports lower portions at both ends of the liquid crystal display device D, and the second buffer material 105 supports the lower center portion.

Patent Documents 1 to 3 show a packing structure in which a part of the bottom plate of the cardboard is cut and raised and engaged with a recess such as a groove provided in the cushioning material. According to this structure, since the cushioning material is fixed by the cut and raised portion of the corrugated cardboard, it is considered that there is no possibility of moving during transportation.
JP-A-6-56173 JP-A-5-147675 JP 2000-25834 A

  However, in the packing structure shown in FIG. 8, the front side wall 121a of the bottom case 102 is likely to spread forward, and the rear side wall 121b easily spreads rearward. As described above, the tendency of the side walls 121a and 121b of the bottom case 102 to open outwardly appears significantly as the width of the bottom case 102, that is, the screen of the liquid crystal display device D increases. Therefore, when packing the upper case 103, particularly when packing the large-screen liquid crystal display device D, it is necessary for an operator or the like to correct the side walls 121a and 121b inward, which is a factor that deteriorates the efficiency of the packing work. It was said. Further, in order to prevent the second cushioning material 105 from moving in the longitudinal direction of the bottom case 102 after packing, the second cushioning material 105 is covered with an adhesive tape or the like to protect the bottom case 102 or the liquid crystal display device D. This also contributes to the deterioration of the efficiency of the packing work.

  On the other hand, the bottom plate shown in Patent Document 1 to Patent Document 3 is applied to the bottom case 102, that is, a part of the bottom surface of the bottom case 102 is cut out and engaged with the second cushioning material 105. Thus, it is possible to prevent the movement of the second buffer material 105. However, even with such a configuration, it is impossible to prevent the side walls 121a and 121b of the bottom case from opening outward, so that the packaging work cannot be made more efficient.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a packing structure that can efficiently pack a thin electronic device such as a liquid crystal display device at a low cost.

  In order to achieve the above object, the invention of claim 1 includes a bottom case covering a lower portion of a thin electronic device, having a substantially rectangular bottom wall and a side wall standing from the periphery of the bottom wall, A top case that is mounted on the outer periphery and covers the entire thin electronic device, a pair of first cushioning materials that are inserted into both inner ends of the bottom case and that support the lower ends of both ends of the thin electronic device, and the bottom case And a second cushioning material made of a foam material that supports a lower portion of the thin electronic device and is inserted between the pair of first cushioning materials. Engaging claws that engage with the second cushioning material are formed at the upper ends of the pair of parallel longitudinal side walls, and the second cushioning material is inserted into the bottom case in the longitudinal side wall of the bottom case. Engagement holes into which the engagement claws of the bottom case can be fitted at both ends along Than is.

  According to a second aspect of the present invention, in the packaging structure for a thin electronic device according to the first aspect, the longitudinal dimension of the second cushioning material is equal to or smaller than the longitudinal dimension of the inner surface of the upper case.

  According to a third aspect of the present invention, in the packaging structure for a thin electronic device according to the first or second aspect, the engagement hole of the second cushioning material has a substantially V-shaped cross section when viewed from the back side. The center part is located inside the bottom case with respect to both ends.

  According to a fourth aspect of the present invention, in the packaging structure for a thin electronic device according to any one of the first to third aspects, the engagement hole of the second cushioning material has a cross-sectional area of the opening portion larger than a cross-sectional area of the bottom portion. It is large.

  According to a fifth aspect of the present invention, in the packaging structure for a thin electronic device according to any one of the first to fourth aspects, the engaging claws of the bottom case and the vicinity thereof correspond to the engaging holes of the second cushioning material. The ruled line to be formed is formed.

  According to a sixth aspect of the present invention, there is provided a cushioning material for packing a thin electronic device that is mounted on a bottom packing case that covers a lower portion of the thin electronic device. It has a pair of engagement holes with which the upper ends of the opposite side walls of the case are engaged.

  According to the first aspect of the present invention, the engagement between the engagement claw formed on the upper end portion of the longitudinal side wall of the bottom case and the second cushioning material in a state where the second cushioning material is inserted into the bottom case. By fitting the hole, the side wall of the bottom case is prevented from opening outward. As a result, when the upper case is mounted on the bottom case, interference between the longitudinal side wall of the upper case and the longitudinal side wall of the bottom case can be prevented, and the packaging operation can be performed smoothly without increasing costs. . In addition, since the second buffer material is fixed by fitting the engaging claw of the bottom case and the engagement hole of the second buffer material, the step of fixing the second buffer material using an adhesive tape or the like It can be omitted, and work efficiency can be improved.

  According to the invention of claim 2, since the longitudinal dimension of the second cushioning material is equal to or smaller than the longitudinal dimension of the inner surface of the upper case, the longitudinal side wall of the bottom case is corrected by the second cushioning material and is outside the inner surface of the upper case. It is reliably prevented from opening in the direction. Thereby, the operation | work which mounts an upper case to a bottom case can be performed still more smoothly.

  According to the invention of claim 3, since the engagement hole of the second buffer material is formed so as to have a substantially V-shaped cross section when viewed from the back side, the longitudinal side wall of the bottom case is corrected by the second buffer material. The effect can be further enhanced.

  According to the invention of claim 4, since the engagement hole of the second buffer material is formed so that the cross-sectional area of the opening portion is larger than the cross-sectional area of the bottom portion, when inserting the second buffer material into the bottom case, The engagement holes and the engagement claws can be smoothly fitted together, and the packaging work can be made more efficient.

  According to the invention of claim 5, since the ruled line corresponding to the engagement hole of the second cushioning material is formed in the engaging claw of the bottom case and its vicinity, the second cushioning material is inserted into the bottom case. At this time, by gently pressing the vicinity of the ruled line, the shape of the engaging claw can be molded in accordance with the engaging hole. Thereby, the longitudinal side wall of the bottom case can be easily corrected inward, and the second cushioning material can be easily inserted.

  According to invention of Claim 6, the side wall of the case for bottom packing can be corrected by fitting the upper end of the mutually opposing side wall of the case for bottom packing to the fitting part of a shock absorbing material. As a result, the side walls are prevented from opening outward, and the packaging work can be performed efficiently.

  A thin electronic device packaging structure according to the best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 shows a packing structure used for packing thin electronic devices such as liquid crystal display devices. The packing structure 1 protects the bottom case 2 covering the lower part including the bottom of the liquid crystal display device D, the upper case 3 covering the entire liquid crystal display device D, and the liquid crystal display device D and its accessories E from vibration and shock. In addition, the first cushioning material 4, the second cushioning material 5, the third cushioning material 6 and the like interposed between the bottom case 2 and the upper case 3 and the liquid crystal display device D are configured. The bottom case 2 and the top case 3 are made of cardboard or the like, and the top case 3 is mounted on the outer periphery of the bottom case 2 to form a packing case main body. Moreover, the 1st shock absorbing material 4, the 2nd shock absorbing material 5, and the 3rd shock absorbing material 6 are formed with foam materials, such as a polystyrene foam which was lightweight and was excellent in impact absorption. The liquid crystal display device D is conveyed in a state where the lower ends at both ends are supported by the first cushioning material 4 and the central lower portion is supported by the second cushioning material 5 within the packing case body.

  The bottom case 2 supports the load of the liquid crystal display device D via the first buffer material 4 and the second buffer material 5. The upper case 3 has an open bottom so that it can be mounted from above the bottom case 2, and the top cushion 3 can be inserted with the third cushioning material 6 and the accessory E from above the liquid crystal display device D. It is attached to the bottom case 2 with the flap 3a opened. In addition, a joint for inserting a joint member for connecting the bottom case 2 and the upper case 3 into positions corresponding to each other on the longitudinal side wall 21 of the bottom case 2 and the longitudinal side wall 31 of the upper case 3. Insertion holes 21a and 31a are formed.

  FIG. 2 shows the bottom case 2 and the first cushioning material 4 and the second cushioning material 5 inserted into the bottom case 2. FIG. 3 shows the bottom case 2 in a state where the first cushioning material 4 and the second cushioning material 5 are inserted. Further, FIG. 4 shows the structure of the bottom case 2. The bottom case 2 includes a substantially rectangular bottom wall 20, a pair of longitudinal side walls 21 and a pair of short side walls 22 erected from the periphery of the bottom wall 20. A pair of first shock absorbers 4 are inserted along the side walls 22 at both ends of the bottom case 2, and a second shock absorber 5 is inserted at the center. In the side wall 21, in addition to the joint fitting insertion hole 21 a described above, a fitting hole 21 b into which the protrusion 4 b formed on the side surface of the first cushioning material 4 can be fitted is formed.

  In addition, an engaging claw 21c that is fitted into the engaging hole 5c (see FIGS. 5 to 7) of the second cushioning material 5 is formed in the central portion of the upper end of the side wall 21 by cutting off the periphery thereof. ing. A ruled line 21d is formed on the outer surface of the side wall 21 from the center of the front end of the engaging claw 21c to the lower end of the side wall, and when the bottom case 2 is assembled and the second cushioning material 5 is inserted. As shown in FIG. 4B, the side wall 21 can be easily bent inward along the ruled line 21d by lightly pressing the vicinity of the ruled line 21d inward (in the direction of the arrow X).

  5 and 6 show the structure of the second cushioning material 5. The second cushioning material 5 includes a fitting portion 5a into which the lower portion of the liquid crystal display device D is fitted, a projecting portion 5b formed to project outward from the second cushioning material 5, and a lower end of the projecting portion 5b. The engaging hole 5c is formed in the upper and lower portions of the engaging hole 5c so as to communicate with the engaging hole 5c. The front-rear dimension L1 of the second cushioning material 5 is the front-rear dimension L2 of the inner surface of the upper case 3 (see FIG. 1) so that the upper case 3 can be easily mounted with the second cushioning material 5 inserted into the bottom case 2. ) The following are set. The engagement hole 5c is formed so that the engagement claw 21c can be fitted therein. After the positions of the engagement holes 5 c and the engagement claws 21 c are aligned, the second cushioning material 5 is inserted into the bottom case 2 by pressing the second cushioning material 5 against the bottom case 2. When the upper case 3 is mounted with the second cushioning material 5 inserted into the bottom case 2, the protruding portion 5 b comes into contact with the inner surface of the side surface 31 of the upper case 3.

  As shown in FIG. 6, a C surface 5e is formed at the opening of the engagement hole 5c so that the tip of the engagement claw 21c can be smoothly inserted when the engagement claw 21c is fitted. The engagement hole 5c has a gentle V-shaped cross section when viewed from the back. As shown in FIG. 5, the bottom surface of the recess 5d communicating with the engagement hole 5c has a gentle V-shaped cross section, similar to the engagement hole 5c. Thereby, when fitting the front-end | tip part of the engagement nail | claw 21c in the engagement hole 5c, both can now be aligned easily.

  Further, as described above, the ruled line 21d is formed on the outer surface of the side wall 21 from the center of the front end of the engaging claw 21c to the lower end of the side wall 21, so that the vicinity of the ruled line 21d is lightly inward. The side wall 21 is bent inward simply by inserting the engaging claw 21c into the engaging hole 5c while pressing the ruled line 21d against the V-shaped ridge line of the engaging hole 5c. In addition, C surfaces 5f are formed at both end edges of the recess 5d. The C surface 5f is provided to facilitate the alignment of the distal end portion of the engagement claw 21c with respect to the engagement hole 5c, and to facilitate the inward bending of the side wall 21.

  Hereinafter, an operation procedure for mounting the second cushioning material 5 to the bottom case 2 will be described with reference to FIG. An operator or the like first positions the second cushioning material 5 above the bottom case 2 so that the V-shaped ridge line of the engagement hole 5 c substantially matches the ruled line 21 d of the side wall 21. At this time, as shown to Fig.7 (a), the engagement hole 5c exists inward rather than the engagement nail | claw 21c. Thereafter, the operator or the like presses the second cushioning material 5 downward (in the direction of arrow Y) while pressing the vicinity of the ruled line 21d of the side wall 21 inward (in the direction of arrow X). As shown in FIG. 7B, the engaging claw 21c is fitted into the engaging hole 5c. At this time, as shown in FIGS. 1 and 3, the central portion of the side wall 21 is corrected inward by the second cushioning material 5 to prevent interference between the side wall 21 and the side wall 31 when the upper case 3 is mounted. Can do. With the first cushioning material 4 and the second cushioning material 5 inserted into the bottom case 2, the liquid crystal display device D is placed on top of the first cushioning material 4 and the second cushioning material 5 as shown in FIG. Then, the fitting state between the engaging claw 21c and the engaging hole 5c is maintained by the weight of the liquid crystal display device D.

  As described above, according to the packing structure 1 of the present embodiment, the engaging claws formed on the upper end portion of the side wall 21 of the bottom case 2 with the second cushioning material 5 inserted into the bottom case 2. 21c and the engagement hole 5c of the 2nd shock absorbing material 5 fit, and the side wall 21 of the bottom case 2 is prevented from opening outward. Thus, when the upper case 3 is mounted on the bottom case 2, the interference between the side wall 31 of the upper case 3 and the side wall 21 of the bottom case 2 can be prevented, and the packing operation can be performed smoothly without increasing costs. become. Moreover, since the 2nd buffer material 5 is fixed by fitting with the engaging claw 21c of the bottom case 2, and the engagement hole 5c of the 2nd buffer material 5, the 2nd buffer material 5 is used using an adhesive tape etc. The process of fixing can be omitted, and work efficiency can be improved.

  Further, since the front-rear dimension L1 of the second cushioning material 5 is equal to or smaller than the front-rear dimension L2 of the inner surface of the upper case, the side wall 21 of the bottom case 2 is corrected by the second cushioning material 5 and the inner surface of the side wall 31 of the upper case 3 There is no more outward opening. As a result, the operation of mounting the upper case 3 to the bottom case 2 can be performed more smoothly. Moreover, since the engagement hole 5c of the 2nd shock absorbing material 5 is formed in the V-shaped cross section by the back view, the correction effect of the side wall 21 of the bottom case 2 by the 2nd shock absorbing material 5 can be heightened. Further, since the C surface is formed at the opening of the engagement hole 5c of the second buffer material 5, when the second buffer material 5 is inserted into the bottom case 2, the engagement hole 5c and the engagement claw 21c The mating can be performed smoothly, and the packaging work can be made more efficient. Furthermore, since the ruled line 21d corresponding to the engaging hole 5c of the second buffer material 5 is formed in the engaging claw 21c of the bottom case 2 and its vicinity, the second buffer material 5 is inserted into the bottom case 2. When doing so, the shape of the engaging claw 21c can be formed into a V shape in accordance with the engaging hole 5c by lightly pressing the vicinity of the ruled line 21d. Thereby, the side wall 21 of the bottom case 2 can be easily corrected inward, and the second cushioning material 5 can be easily inserted.

  The present invention is not limited to the configuration of the above embodiment, and various modifications can be made. For example, the packaging structure 1 is not limited to packaging of the liquid crystal display device D, and can be widely applied to packaging of thin electronic devices. In addition, the engagement hole 5c of the second cushioning material 5 is not limited to the one having a V-shaped cross section when viewed from the back side, and the center part is positioned inward of the bottom case with respect to both ends thereof. It may be a simple cross-sectional shape (for example, an arc-shaped cross section). The substantially V-shaped cross section described in claim 3 includes such a shape. Further, the engagement hole 5c of the second cushioning material 5 is not limited to the one in which the opening part is formed in a C-plane shape, and the sectional area of the opening part is formed to be larger than the sectional area of the bottom part. It may be a simple shape (for example, a shape in which the opening portion is formed in an R shape).

The perspective view which shows the structure of the packing structure by one Embodiment of this invention. The assembly perspective view which looked at the bottom case, the 1st shock absorbing material, and the 2nd shock absorbing material which comprise the packing structure from the back side. (A) is a plan view of the bottom case in which the first buffer material and the second buffer material are inserted, (b) is the front view, and (c) is the AA line in (a) and (b). Sectional drawing. (A) is the assembly perspective view of a bottom case, (b) is the figure which expanded and showed the engaging nail | claw currently formed in the side wall, and its vicinity. (A) And (b) is the perspective view which looked at the 2nd shock absorbing material from the back surface side. (A) is a side view of the second cushioning material, (b) is a front view thereof, (c) is a rear view thereof, and (d) is a sectional view taken along line BB in (b) and (c). (A) is sectional drawing which shows the point which inserts the 2nd shock absorbing material in a bottom case, (b) is sectional drawing which shows the state in which the 2nd shock absorbing material was inserted in the bottom case. The perspective view which shows the structure of the conventional packing structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packing structure 2 Bottom case 3 Upper case 4 1st buffer material 5 2nd buffer material 5c Engagement hole 21 Side wall 21c Engagement claw 21d Ruled line D Liquid crystal display device

Claims (6)

A bottom case covering a lower portion of the thin electronic device, having a substantially rectangular bottom wall and a side wall rising from the periphery of the bottom wall; and an upper case mounted on the outer periphery of the bottom case and covering the entire thin electronic device A pair of first cushioning materials made of a foam material inserted into both ends of the bottom case and supporting lower ends of the thin electronic device; and a pair of first cushioning materials inside the bottom case, In a packaging structure for a thin electronic device provided with a second cushioning material made of a foam material inserted between the cushioning materials and supporting the lower part of the thin electronic device,
An engaging claw that engages with the second cushioning material is formed at the upper end of the pair of parallel longitudinal side walls of the bottom case,
The second cushioning material has engagement holes into which engagement claws of the bottom case can be fitted at both ends along the longitudinal side wall of the bottom case in a state of being inserted into the bottom case. Packaging structure for thin electronic devices.   2. The thin electronic device packaging structure according to claim 1, wherein a front-rear dimension of the second cushioning material is equal to or smaller than a front-rear dimension of the inner surface of the upper case.   The engagement hole of the second cushioning material is characterized in that a central portion is located inward of the bottom case with respect to both ends thereof so as to have a substantially V-shaped cross section when viewed from the back. The packing structure for thin electronic devices according to claim 1 or 2.   4. The thin electronic device according to claim 1, wherein the engagement hole of the second buffer material is formed such that a cross-sectional area of the opening portion is larger than a cross-sectional area of the bottom portion. Packing structure.   The thin line according to any one of claims 1 to 4, wherein a ruled line corresponding to an engagement hole of the second cushioning material is formed in an engagement claw of the bottom case and in the vicinity thereof. Packaging structure for electronic equipment. In the cushioning material for thin electronic device packaging attached to the bottom packaging case covering the lower part of the thin electronic device,
For thin electronic device packaging, comprising: a fitting portion into which a lower portion of the thin electronic device is fitted; and a pair of engagement holes with which upper ends of opposite side walls of the bottom packaging case are engaged. Cushioning material.

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