JP3407024B2 - Package and method of packing the package - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package of precision parts devised for packing and transporting precision parts without damaging them, and a packing method thereof.

[0002]

2. Description of the Related Art For example, a surface light source device as a precision component used in combination with a liquid crystal display panel in a portable personal computer, a word processor or the like, for example, a backlight unit, causes deterioration of display quality when dust invades. After attaching a protective sheet made of synthetic resin on the surface, put it in a bag made of synthetic resin that has been subjected to antistatic treatment, put it in the bag of the air cushion sheet, and then put the cushioning material inside It is designed to be loaded and stored in a cardboard box.

As another packing method for a surface light source device as a precision component, for example, a backlight unit, the backlight unit is directly shrink-wrapped, and the shrink-wrapped backlight unit is provided with a cushioning material inside. A method of sequentially loading and storing in a cardboard box for packing via a buffer plate is known.

Here, the recent backlight unit is
In order to reduce the thickness and weight, as shown in FIGS. 7 and 8,
A rod-shaped fluorescent lamp 7 is provided at a position near the edge of the thin frame 6.
Is attached, and a thin plate-shaped light guide plate 8, a reflection sheet 10, a diffusion sheet 11, prism sheets 12 and 13 and the like are stacked and arranged at positions where appropriate intervals are provided with respect to the fluorescent lamp 7. ing. In such a recent backlight unit 3, since the thin and wide area of the light guide plate 8 and the like are accommodated in the frame 6, the dimension of the frame 6 in the height direction is short, and the size of the frame 6 is small. The length of each side is extremely longer than the dimension of the frame 6 in the height direction. Therefore, the frame 6 is less likely to be flexibly deformed in the vertical direction and is easily deformed in the lateral direction of the frame 6.

[0005]

When the above-mentioned recent backlight unit 3 is loaded and housed in a cardboard box by the conventional packing method as described above and is transported, vibrations of the transportation vehicle at the time of this transportation and Due to changes in acceleration, etc.,
The external force F acts on the side surface side of the thin frame 6 of the backlight unit 3 via the cushioning material. Further, according to the conventional packing method, the backlight unit 3 is grasped by hand and loaded / stored in a cardboard box, but the gripping force (F) of the operator acting at this time is a side surface of the thin frame 6. May act on the side.

Then, as shown by a chain double-dashed line in FIGS. 7 and 8, the thin frame 6 is deformed by δ in the direction of weak strength, and the deformed frame 6 is deformed by the fluorescent lamp 7.
Press. As a result, the fluorescent lamp is also pressed by the side surface of the frame 6 to be deformed (ε), the gap between the fluorescent lamp 7 and the light guide plate 8 is partially changed, and a problem of light leakage may occur. As shown in FIG. 7, this light leakage is caused by the light emitting surface of the backlight unit 3 near the fluorescent lamp (see FIG.
On the right side of), a bright arc-shaped bright emission light portion (dotted line portion 2)
3) occurs, which causes the backlight unit 3 to be determined as a defective product for the backlight unit 3 which is required to have a uniform luminance over the entire light emitting surface.

Therefore, it is an object of the present invention to provide a package which does not cause the above-mentioned inconvenience in precision parts and a method of packaging the package.

[0008]

According to a first aspect of the present invention, there is provided a package in which precision parts are placed on a flat tray and the tray and the precision parts are packaged with a synthetic resin film. Between the outer edge of the precision part and the outer edge of the tray,
A blank portion is formed so that the tray can be gripped.
The tray includes upper and lower plate-shaped members and a plurality of beam members that connect the upper and lower plate-shaped members at substantially equal intervals. Further, according to the present invention, the gap between the beam members of the tray is opened to the side surface side of the upper and lower plate-shaped members, and the entire tray is made of synthetic resin.

According to the present invention having such a structure, the outer edge of the precision component does not project outside the outer edge of the tray,
Moreover, since the tray is flat, the tray itself does not collide with the side surface of the precision component. Therefore, external objects do not collide with the side surfaces of the precision parts on the tray,
Moreover, external force does not act directly. Further, since only the marginal portion of the tray can be gripped by hand when moving the package, it is possible to move the package without applying force to the precision parts. Furthermore, by packaging the tray and precision parts with a synthetic resin film, the contact between the atmosphere and the precision parts can be blocked, so that dust in the atmosphere and surrounding dust can be prevented from adhering to the precision parts. Will be possible. Further, according to the present invention, since the tray itself has a structure similar to that of the cardboard, the tray itself has a shock absorbing function, and it is possible to protect the precision parts placed on the tray from a shock. . Further, according to the present invention,
Even when the synthetic resin film is heat-shrinked by shrink wrapping, the heat of the tray can be escaped from the gap, and the temperature of the precision component can be lowered at an early stage. or,
According to the present invention, since the entire tray is made of synthetic resin, unlike paper corrugated board, dust such as paper dust or the like is not generated from the tray itself.

According to a second aspect of the present invention, the precision parts are placed on a flat plate-shaped tray, and the tray and the precision parts are wrapped so as to be sandwiched between a single two-fold folded synthetic resin film. A package of precision parts in which the tray and the precision parts are packaged with the synthetic resin film by passing the whole in a heating atmosphere after thermocompression bonding of the opposite ends of the synthetic resin film. Between the outer edge of the precision component and the outer edge of the tray, there is formed a blank portion where the tray can be gripped. The tray includes upper and lower plate-shaped members and a plurality of beam members that connect the upper and lower plate-shaped members at substantially equal intervals. Further, according to the present invention, the gap between the beam members of the tray is opened to the side surface side of the upper and lower plate-shaped members, and the entire tray is made of synthetic resin.

According to the present invention having such a structure, the synthetic resin film is heat-shrinked by sealing the tray and the precision component in the synthetic resin film and then passing the whole in a heating atmosphere. As a result, the precision component is sealed in the synthetic resin film together with the tray while being pressed onto the tray by the elastic force of the synthetic resin film.
Therefore, the present invention has the same action and operation as the invention of claim 1.
Not only can the effects be obtained, but even when an impact force or vibration acts in a direction parallel to the tray upper surface, the precision component deforms the synthetic resin film and slides on the flat tray upper surface. As a result, it is possible to absorb impact force and vibration by the frictional resistance generated when the precision component slides on the tray and the deformation resistance of the synthetic resin film.

According to a third aspect of the present invention, precision parts are placed on a flat tray, the tray and the precision parts are covered with a synthetic resin film, and the ends of the synthetic resin film are self-adhered to each other. According to the above, the tray and the precision component are a package formed by packaging the synthetic resin film, and between the outer edge of the precision component and the outer edge of the tray,
A blank portion is formed so that the tray can be gripped.
The tray includes upper and lower plate-shaped members and a plurality of beam members that connect the upper and lower plate-shaped members at substantially equal intervals. Further, according to the present invention, the gap between the beam members of the tray is opened to the side surface side of the upper and lower plate-shaped members, and the entire tray is made of synthetic resin.

According to the present invention having such a structure, since it is not necessary to heat the synthetic resin film to shrink it by heat, it is suitable for packaging of precision parts which are particularly resistant to temperature rise. It becomes possible to obtain the action and effect of.

According to a fourth aspect of the present invention, there is provided a package in which precision parts are placed on a flat tray, and the tray and the precision parts are packaged with a synthetic resin film. A blank portion is formed between the outer edge of the tray and the tray so that the tray can be gripped. The tray includes rectangular upper and lower plate-shaped members and a plurality of beam members that connect the upper and lower plate-shaped members at substantially equal intervals.
Further, in the present invention, the beam member of the tray is formed so as to be substantially orthogonal to both long side portions, and a void portion between the beam members is opened toward both long side portions, and the entire tray is provided. Are made of synthetic resin.

According to the present invention having such a structure, the outer edge of the precision component does not project outside the outer edge of the tray,
Moreover, since the tray is flat, the tray itself does not collide with the side surface of the precision component. Therefore, external objects do not collide with the side surfaces of the precision parts on the tray,
Moreover, external force does not act directly. Further, since only the marginal portion of the tray can be gripped by hand when moving the package, it is possible to move the package without applying force to the precision parts. Furthermore, by packaging the tray and precision parts with a synthetic resin film, the contact between the atmosphere and the precision parts can be blocked, so that dust in the atmosphere and surrounding dust can be prevented from adhering to the precision parts. Will be possible. Further, according to the present invention, when the tension of the synthetic resin film acts on the tray, a larger bending moment acts on the long side of the tray than on the short side of the tray. Since it is formed so as to be substantially orthogonal to the portion, and the rigidity with respect to the bending moment acting on the long side of the tray is large, the degree to which the tray is deformed by the tension of the synthetic resin film is extremely small.

According to a fifth aspect of the present invention, the precision parts are placed on a flat plate-like tray, and the tray and the precision parts are wrapped so as to be sandwiched between a single two-fold folded synthetic resin film. A package of precision parts in which the tray and the precision parts are packaged with the synthetic resin film by passing the whole in a heating atmosphere after thermocompression bonding of the opposite ends of the synthetic resin film. Between the outer edge of the precision component and the outer edge of the tray, there is formed a blank portion where the tray can be gripped. The tray includes rectangular upper and lower plate-shaped members and a plurality of beam members that connect the upper and lower plate-shaped members at substantially equal intervals. Further, in the present invention, the beam member of the tray is formed so as to be substantially orthogonal to both long side portions, and a void portion between the beam members is opened toward both long side portions, and the entire tray is provided. Are made of synthetic resin.

According to a sixth aspect of the present invention, the precision parts are placed on a flat tray, the tray and the precision parts are covered with a synthetic resin film, and the ends of the synthetic resin film are self-adhered to each other. According to the above, the tray and the precision component are a package formed by packaging the synthetic resin film, and between the outer edge of the precision component and the outer edge of the tray,
A blank portion is formed so that the tray can be gripped.
The tray includes rectangular upper and lower plate-shaped members and a plurality of beam members that connect the upper and lower plate-shaped members at substantially equal intervals. Further, in the present invention, the beam member of the tray is formed so as to be substantially orthogonal to both long side portions, and a void portion between the beam members is opened toward both long side portions, and the entire tray is provided. Are made of synthetic resin.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the precision component is a surface light source device.
A packaging body, wherein the synthetic resin film is a transparent synthetic resin film having a high light transmittance.

An eighth aspect of the present invention is the package according to any one of the first to seventh aspects, wherein the tray and the synthetic resin film are subjected to an antistatic treatment.

The invention of claim 9 relates to claim 1, 2, 4,
In any one of the inventions 5 and 7 to 8, there is provided a package characterized in that degassing holes are formed in the synthetic resin film.

[0021] The invention of claim 10 is based on claims 1, 2, 4,
In any one of the inventions 5 and 7 to 9, the synthetic resin film positioned on the back surface side of the tray with respect to the shrinkage amount of the synthetic resin film positioned on the front surface side of the tray on which the precision component is placed. So that the contraction amount of
The heating atmosphere of the tray and precision parts packaged with the synthetic resin film is adjusted.

According to the present invention having such a structure, the heat-adhering portion of the synthetic resin film is located on the side surface side or the back surface side of the package, and the precision parts on the tray can be removed without peeling off the synthetic resin film. It is much easier to confirm. In particular, during the lighting test of the backlight unit, it becomes possible to accurately inspect the lighting status of the backlight unit.

The invention of claim 11 is characterized in that the bag is made of a synthetic resin having transparency and is subjected to antistatic treatment.
A packaging body according to any one of the invention No. 0, in which a plurality of packaging bodies are housed with a precision component on top and via a cushioning material, and a bag made of a synthetic resin containing the plurality of packaging bodies is contained in a box body via the cushioning material. The present invention relates to a packaging method for a package, wherein an upper opening of the box is closed after being housed.

According to such a packaging method of the package, the bottom surface of the tray of the package is supported by the cushioning material, and the side surface of the tray of the package is supported by the cushioning material. Since the margin portion is formed between the outer edge of the precision component and the outer edge of the precision component, the external force does not act directly on the side surface of the precision component. Therefore, among the precision parts, those having particularly weak side surface strength do not cause deformation or troubles due to deformation because impact force or external force during transportation does not act on the side surface.

[0025]

[0026]

[0027]

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a diagram showing a package 1 according to an embodiment of the present invention. As shown in FIG. 1, in a package 1 according to the present embodiment, a backlight unit 3 as a precision component is placed on a tray 2 made of synthetic resin.
The tray 2 and the backlight unit 3 are shrink-wrapped. That is, the tray 2 and the backlight unit 3 are covered with the synthetic resin film 4, and after the openings of the synthetic resin film 4 are brought into close contact with each other by heat, the synthetic resin film 4 is heat-shrinked.

Here, the tray 2 is made of a synthetic resin and formed in a flat plate shape, and has a structure similar to a generally known paper corrugated board. That is, the tray 2 is
The upper and lower plate-shaped members 2a and 2b are connected by beam members 2c arranged at substantially equal intervals.
The space 2d between them is open to both side surfaces.
The tray 2 having such a structure is light and has a shock absorbing function, and has sufficient rigidity to mount precision components such as the backlight unit 3. The outer edge of the tray 2 is larger than the outer edge of the backlight unit 3, and margins 5a to 5d are formed around the backlight unit 3, and the margins 5a to 5d are touched. You can grab it with. When the tray 2 has a rectangular shape, the void portion 2d opens in the long side portions A and B on both sides. As a result, the beam member 2c extends in the direction connecting the long side portions A and B of the tray 2, and the strength against the bending moments M1 and M2 acting along the long side portions A and B of the tray 2 is increased. Is being considered. Further, the tray 2 is formed of a carbon-mixed synthetic resin or has a surface coated with a surface active agent for antistatic treatment, so that the backlight unit 3 is not charged with static electricity. It is designed to prevent dust from floating in the atmosphere. The margin portions 5a to 5d are portions on the upper surface of the tray 2 on which the backlight unit 3 is not placed.

The backlight unit 3 is shown in FIGS.
As shown in, a thin plastic frame 6 and
The fluorescent lamp 7 disposed inside the frame 6 and the frame 6 so that the end surface 8a faces the fluorescent lamp 7.
The light guide plate 8 is disposed inside, the reflection sheet 10 is disposed on the lower surface of the light guide plate 8, and the diffusion sheet 11 and the prism sheets 12 and 13 are disposed on the upper surface of the light guide plate 8. Among them, the frame 6 is formed to have a thin wall thickness in order to make it thin and lightweight.
A liquid crystal display panel 14 is placed on the backlight unit 3. Further, a reflector 15 for reflecting light is arranged around the fluorescent lamp 7.
A connector 16 connected to an external power source is attached to the side surface of the frame 6.

The synthetic resin film 4 is formed of, for example, high-pressure low-density polyethylene, high-density polyethylene, polypropylene resin, polybutene resin, or has a three-layer structure of polyethylene and polyolefin, and is used for shrink packaging. It has suitable properties. The synthetic resin film 4 is mixed with an antistatic material such as carbon and is subjected to an antistatic treatment so as not to attract dust in the atmosphere. Further, in the present embodiment, the synthetic resin film 4 is made of a material having the best light transmittance. This is a synthetic resin film 4
This is because it is possible to perform a lighting test of the backlight unit 3 without peeling off, and to check the display quality of the backlight unit 3 and the presence or absence of dust inclusion. Further, the synthetic resin film 4 has appropriate elasticity and can be packaged along the shape of the backlight unit 3, and is deformed when an impact force acts on the side surface of the tray 2. , The backlight unit 3 is slid with respect to the tray 2, and the impact force is applied to the backlight unit 3.
Prevent direct action on.

FIG. 4 shows a simplified packaging process of the packaging body 1 as described above. As shown in this FIG.
First, after the backlight unit 3 is placed on the tray 2, the tray 2 and the backlight unit 3 are inserted so as to be sandwiched between a single half-folded synthetic resin film 4. Then, the upper and lower end portions 4a, 4b, 4 of the synthetic resin film 4 located on three sides of the tray 2 are opposed to each other.
c is heat-adhered to form a hermetically sealed portion. with this,
The tray 2 and the backlight unit 3 are sealed inside the synthetic resin film 4.

Next, the tray 2 and the backlight unit 3 housed in the synthetic resin film 4 are passed through the shrink tunnel 17 in which a heating atmosphere is formed, and the synthetic resin film 4 is thermally shrunk. As a result, as shown in FIG.
And the upper surface side of the backlight unit 3, and the synthetic resin film 4 is stretched (tension is generated), the backlight unit 3 is pressed against the tray 2 by the tension of the synthetic resin film 4, and the package 1 Is completed. Here, it is more preferable that the heating atmosphere in the shrink tunnel 17 is adjusted so that the synthetic resin film 4 located on the lower surface side of the tray 2 shrinks first. By doing so, the shrinkage amount of the synthetic resin film 4 located on the lower surface side (back surface side) of the tray 2 becomes larger than the shrinkage amount of the synthetic resin film 4 located on the upper surface side (front surface side) of the tray 2, Since the welded portions of the synthetic resin films 4 are located on the side surface side or the lower surface side of the tray 2, it becomes easy to check the backlight unit 3 during the lighting test. The series of operations shown in FIG. 4 are usually performed in a clean room. Further, the temperature of the backlight unit 3 after passing through the shrink tunnel 17 is about 40 ° C., which does not adversely affect the backlight unit 3.

As described above, according to the package 1 of the present embodiment, the backlight unit 3 can be pressed against the tray 2 by the synthetic resin film 4 having excellent elasticity, and the backlight unit 3 can be pressed against the tray 2. Therefore, the frame 6 does not receive an external force in the lateral direction (direction C in FIG. 3), which has a relatively low rigidity, and receives the external force in a vertical direction (direction D in FIG. 3), which has a relatively high rigidity, in the frame 6. Because frame 6
Does not deform in the lateral direction (C direction in FIG. 3) due to an external force, and the fluorescent lamp 7 is not deformed or displaced due to the deformation of the frame 6, so that the light guide plate 8 and the fluorescent lamp 7 are misaligned. There is no problem of light leakage.

Further, according to the package 1 of the present embodiment, the margin portion 5a of the tray 2 is provided outside the backlight unit 3.
5d are formed, and the margins 5a to 5d can be grasped by hand, and when the package 1 is moved or the package 1 is packed, the frame 6 is directly grasped by hand. Since the frame 6 is not deformed, the fluorescent lamp 7 is not deformed or displaced due to the deformation of the frame 6, and the problem of light leakage does not occur.

Further, according to the packaging body 1 of the present embodiment, since the tray 2 is formed of synthetic resin, unlike paper corrugated board, paper dust is not generated, and dust and dust harmful to precision parts are not generated. No dust is generated from the tray 2 itself.

Further, according to the package 1 of the present embodiment, since the tray 2 is formed in a structure similar to that of paper corrugated board, it has an excellent shock and vibration buffering function, and the precision parts can It becomes possible to effectively protect from vibration.

Further, according to the package 1 of the present embodiment, since the synthetic resin film 4 is formed of a material having a good light transmittance, the synthetic resin film 4 is used when the lighting test of the backlight unit 3 is performed. Even if the film 4 is not peeled off, it is possible to visually confirm whether the backlight unit 3 is good or bad (display performance) during the lighting test. Moreover, when the lighting test of the backlight unit 3 is performed, the synthetic resin film 4 in the portion where the connector 16 for connecting to the external power source is located only needs to be partially broken, and the synthetic resin film 4 does not need to be peeled off. . Therefore, according to the packaging body 1 of the present embodiment, it is possible to prevent dust floating in the atmosphere and surrounding dust from adhering to and entering the backlight unit 3 during the lighting test, and the backlight unit 3 can be prevented. It is possible to reliably perform a good / bad inspection at the time of delivery. In this regard, the conventional backlight unit packaging is that the backlight unit is taken out from the synthetic resin bag that has wrapped the backlight unit, and then the protective sheet attached to the upper surface of the prism sheet is peeled off. Since the lighting test was conducted with the light unit exposed, the dust floating in the atmosphere and surrounding dust adhered to the backlight unit during the lighting test and the lighting test could not be performed accurately. In some cases, the backlight unit, which had no abnormality at the time of delivery, became defective due to the defect that occurred during the lighting test. However, according to the packaging body 1 of the present embodiment, it is possible to accurately perform the lighting test of the backlight unit 3 at the time of delivery, as described above, without causing a problem as in the conventional example.

Further, as described above, the packaging body 1 of the present embodiment, when performing the lighting test of the backlight unit 3,
Since it is only necessary to partially break the synthetic resin film 4 in the portion where the connector 16 for connecting to an external power source is located and the synthetic resin film 4 does not need to be peeled off, the prism sheets 12, 13 of the backlight unit 3 are framed. 6
It doesn't float up and slip off. Therefore, it becomes unnecessary to attach the shift preventing tapes 24 and 25 as shown in FIG. 7 across the frame 6 and the prism sheet 13, and when the tapes 24 and 25 are attached to another device (for example, a liquid crystal display device). No need to remove 25
Assembly work to other devices becomes easy. Further, in the case of the conventional example shown in FIG. 7, the tapes 24 and 25 are attached to the prism sheet 1.
The prism sheet 13 may be damaged by a nail or the like when peeled from the sheet 3, but the package 1 of the present embodiment does not cause such a defect.

Furthermore, since the package 1 of the present embodiment has a mode in which the voids 2d of the tray 2 are open on both side surfaces of the tray 2, it is easy to release the heat associated with the shrink wrapping.

FIG. 5 shows a package 1 produced as described above.
It shows the packing method of. As shown in this FIG.
The plurality of packages 1 are sequentially stacked and housed in a clean room in a bag 18 made of synthetic resin subjected to antistatic treatment with the backlight unit 3 facing upward. A cushioning plate (a cushioning material) 20 made of a material having a cushioning function is arranged between the packages 1 and 1. Further, a cushioning material 19 similar to the tray is arranged on the uppermost upper surface side of the stacked packages 1.

The synthetic resin bag 18 in which a plurality of packages 1 are loaded and housed is housed in a paper cardboard box (box) 21. The paper cardboard box is provided with cushioning material 22 such as urethane formed in a flat plate shape on the four side surfaces and the bottom surface. After that, the upper opening / closing portions 21a, 21a of the paper cardboard box 21 are closed, and the packing operation of the package 1 is completed.

According to the packing method as described above, the cushioning material 2
2 supports the side surface of the tray 2 and the bottom surface of the lowermost package 1 with the cushioning material 22, so that even if an external force acts on the packed paper cardboard box 21, External force does not directly act on the backlight unit 3. Therefore, the thin frame 6 of the backlight unit 3 is not deformed by an external force, the fluorescent lamp 7 is not deformed or displaced due to the deformation of the frame 6, and the problem of light leakage does not occur. . or,
Even if an impact force or vibration acts on the paper cardboard box 21 packed during transportation, the impact force or vibration is applied to the paper cardboard box 21.
It is absorbed by the cushioning material 22 arranged inside the container and is also absorbed by the tray 2 having a structure similar to that of the cardboard box 21 made of paper, so that the backlight unit 3 is effectively protected from impact and vibration during transportation. Can be protected.

Further, as shown in FIG. 6, since the backlight unit 3 is elastically pressed (with the tension F1) to the tray 2 by the stretchable synthetic resin film 4, it is against the upper surface of the tray 2. When a shock or vibration acts in a substantially horizontal direction (a direction along the upper surface), the backlight unit 3 deforms the synthetic resin film 4, and the backlight unit 4 slides on the upper surface of the tray 2. as a result,
Impact and vibration can be absorbed by the frictional resistance generated when the backlight unit 3 slides and the elastic resistance of the synthetic resin film 4. Therefore, according to the packing method of the present embodiment, it is possible to reduce the influence of shock and vibration acting on the backlight unit 3 as much as possible.

Further, since the package 1 according to the present embodiment can be made compact as compared with the case of packaging with the air cushion sheet as in the conventional example, when packaged in the corrugated cardboard box 21 of the same size, More packing than the example can be done, and packing efficiency improves.

The package 1 according to the present embodiment is shown in FIG.
As shown in, the tray 2 is made of synthetic resin in a structure similar to that of corrugated cardboard, but not limited to this, the surface of the corrugated paper made of paper is coated with a synthetic resin film, or the surface of the corrugated paper made of paper is It may be coated with a synthetic resin. Further, the tray 2 of the present embodiment is formed in a structure similar to paper corrugated cardboard, but is not limited to this,
A synthetic resin plate such as foamed polyethylene may be used, but a plate capable of exerting a buffering function is preferable.

Further, the package 1 of this embodiment has a tray 2
The mode in which the backlight unit 3 and the backlight unit 3 are shrink-wrapped with the synthetic resin film 4 is shown, but the invention is not limited to this, and the stretch film is stretched by covering the tray 2 and the backlight unit 3 as a precision component with the stretch film. After the film is stretched, the ends of the stretch film are self-adhered to each other, and then the tray 2
The backlight unit 3 may be sealed. According to this mode, it is not necessary to heat the objects to be packaged (for example, the tray 2 and the backlight unit 3), which is effective when the objects to be packaged are precision parts that are particularly resistant to heat. In addition, the tray 2 and the backlight unit 3 may be stretch-shrink wrapped with the synthetic resin film 4.

Further, although the present embodiment has been described by taking the backlight unit 3 which is a kind of surface light source device as an example of the precision component, the present invention is not limited to this, and other lighting devices, electronic circuit boards, hard disks, etc. The present invention can be widely applied to packaging of electronic parts, semiconductor devices or electronic parts using the same, precision parts such as liquid crystal display panels.

Further, in the above embodiment, the tray 2 and the precision component (for example, the backlight unit 3) may be packaged after the degassing holes have been previously formed in the two-folded synthetic resin film 4. By doing so, the synthetic resin film 4 is more closely attached to the outer surfaces of the tray 2 and the precision component, and the synthetic resin film 4 is prevented from swelling due to the gas sealed inside, so that the packaging bodies 1 are stacked and stacked. At this time, each of the packages 1 is displaced and becomes difficult to collapse. However,
In this case, the size and number of the deaeration holes should be taken into consideration in consideration of the size of the dust and dirt that poses a problem for the precision parts (that is, the deaeration holes of a size smaller than the allowed size of the dust and dirt, for example). It is decided).

[0051]

INDUSTRIAL APPLICABILITY As described above, the package of the present invention is a package in which precision parts are placed on a flat tray and the tray and the precision parts are packaged with a synthetic resin film. Between the outer edge of the precision part and the outer edge of the tray,
Since the blank portion that can hold the tray is formed, the outer edge of the precision component does not project to the outside of the outer edge of the tray, and no external force acts on the side surface of the precision component on the tray. Further, according to the present invention, since the present invention is configured as described above, only the blank portion of the tray can be gripped by hand when moving the package, so that the package can be moved without applying force to the precision parts. It is possible to let Therefore, the package of the present invention can effectively prevent the occurrence of defects in precision components due to deformation, residual strain, and the like.

Further, in the packaging method of the present invention, the above-mentioned packaging body of the present invention is placed in a plurality of bags in a transparent synthetic resin bag having an antistatic treatment, with the precision parts on top and a cushioning material. The synthetic resin bag that contains the plurality of packaging bodies is housed in the box body via the cushioning material, and then the upper opening of the box body is closed. The bottom surface of the tray is supported by the cushioning material, and the side surface of the tray of the package is supported by the cushioning material. Moreover, in the package according to the present invention, since the margin portion is formed between the outer edge of the tray and the outer edge of the precision component, the external force does not act on the side surface of the precision component. Therefore, according to the packaging method of the present invention, among precision parts, those having particularly weak side surface strength do not deform because the impact force or external force during transportation does not act on the side surface, and the deformation thereof does not occur. It does not cause problems with

[Brief description of drawings]

FIG. 1 is a diagram showing a package according to an embodiment of the present invention. 1A is a plan view of the package, FIG. 1B is a side view of the package, and FIG. 1C is a front view of the package.

FIG. 2 is an exploded perspective view of a backlight unit as an example of precision parts.

FIG. 3 is a partially enlarged cross-sectional view on the front side of a backlight unit as an example of precision parts.

FIG. 4 is a diagram schematically showing a process of creating a package.

FIG. 5 is a front cross-sectional view of a box for packing the package.

FIG. 6 is a front view of a package showing a state in which a synthetic resin film is under tension.

FIG. 7 is a plan view for explaining a problem that occurs during transportation of a backlight unit as an example of precision parts.

FIG. 8 is a partially enlarged cross-sectional view on the front side for explaining a problem that occurs during transportation of a backlight unit as an example of precision parts.

[Explanation of symbols]

1 ... Package, 2 ... Tray, 2a, 2b ... Plate-like member, 2c ... Beam member, 2d ... Gap part, 3 ... Backlight unit (precision component), 4 ... Synthetic resin film,
5a to 5d ... blank area, 18 ... bag, 19, 22 ...
Buffer material, 20 ... Buffer plate (buffer material), 21 ... Paper cardboard box (box)

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65D 85/86 B65B 53/00 B65D 85/00

Claims (11)

(57) [Claims] 1. A packaging body in which precision parts are placed on a flat plate-like tray, and the tray and the precision parts are packaged with a synthetic resin film, the space between the outer edge of the precision part and the outer edge of the tray. A blank space is formed on the tray for gripping the tray, and the tray includes upper and lower plate-shaped members and a plurality of beam members that connect the upper and lower plate-shaped members at substantially equal intervals. The cavity is opened to the side surface side of the upper and lower plate-like members, and the entire tray is made of synthetic resin. 2. Precision parts are placed on a flat plate-shaped tray, and the tray and the precision parts are wrapped so as to be sandwiched between a single folded synthetic resin film,
A package of precision parts in which the tray and the precision parts are packaged with the synthetic resin film by allowing the entire ends to pass through a heating atmosphere after thermocompression bonding of the opposite ends of the synthetic resin film. A margin is formed between the outer edge of the precision component and the outer edge of the tray so that the tray can be gripped, and the tray includes upper and lower plate-shaped members and these upper and lower plate-shaped members at substantially equal intervals. A plurality of beam members to be connected, a gap between the beam members is configured to open to a side surface side of the upper and lower plate-like members, and the entire tray is formed of synthetic resin, A package to do. 3. A precision tray is mounted on a flat tray, the tray and the precision workpiece are covered with a synthetic resin film, and the ends of the synthetic resin film are self-adhered to each other, whereby A precision body is a package formed by packaging with the synthetic resin film, between the outer edge of the precision component and the outer edge of the tray, there is formed a blank part for gripping the tray, and the tray is A plate-shaped member and a plurality of beam members connecting the upper and lower plate-shaped members at substantially equal intervals are provided, and a gap between the beam members is opened to the side surface side of the upper and lower plate-shaped members. And a package in which the entire tray is formed of synthetic resin. 4. A package in which precision parts are placed on a flat plate-like tray, and the tray and the precision parts are packaged with a synthetic resin film, the space between the outer edge of the precision part and the outer edge of the tray. A blank portion is formed on the tray, and the tray includes rectangular upper and lower plate-shaped members and a plurality of beam members connecting the upper and lower plate-shaped members at substantially equal intervals. A member is formed so as to be substantially orthogonal to both long side portions, a gap between the beam members is opened to both long side portions, and the entire tray is made of synthetic resin. And packaging. 5. A precision component is placed on a flat plate-shaped tray, and the tray and the precision component are wrapped so as to be sandwiched between a single folded synthetic resin film,
A package of precision parts in which the tray and the precision parts are packaged with the synthetic resin film by allowing the entire ends to pass through a heating atmosphere after thermocompression bonding of the opposite ends of the synthetic resin film. A margin is formed between the outer edge of the precision component and the outer edge of the tray so that the tray can be gripped, and the tray has rectangular upper and lower plate-shaped members and these upper and lower plate-shaped members substantially equal to each other. A plurality of beam members connected at intervals are provided, the beam members are formed so as to be substantially orthogonal to both long side portions, and the gap between the beam members is opened to both long side portions. A packaging body, wherein the entire tray is made of synthetic resin. 6. A precision tray is placed on a flat tray, the tray and the precision tray are covered with a synthetic resin film, and the ends of the synthetic resin film are self-adhered to each other, whereby A precision component is a package formed by packaging the synthetic resin film, between the outer edge of the precision component and the outer edge of the tray, there is formed a blank part for gripping the tray, and the tray has a rectangular shape. The upper and lower plate-shaped members and a plurality of beam members connecting the upper and lower plate-shaped members at substantially equal intervals are provided, and the beam members are formed so as to be substantially orthogonal to both long side portions. A wrapping body, characterized in that voids are opened to both long side portions, and the entire tray is made of synthetic resin. 7. The precision component is a surface light source device, and the synthetic resin film is a transparent synthetic resin film having a high light transmittance, according to any one of claims 1 to 6. Packaging. 8. The antistatic treatment is applied to the tray and the synthetic resin film.
The package according to any one of 1. 9. The package according to any one of claims 1, 2, 4, 5, and 7 to 8, wherein degassing holes are formed in the synthetic resin film. 10. The shrinkage amount of the synthetic resin film located on the back side of the tray is larger than the shrinkage amount of the synthetic resin film located on the front surface side of the tray on which the precision component is placed. The packaging body according to any one of claims 1, 2, 4, 5, and 7 to 9, wherein the heating atmosphere of the tray and the precision component packaged with the synthetic resin film is adjusted. 11. A transparent synthetic resin bag having an antistatic treatment, wherein the packaging body according to any one of claims 1 to 10 has a precision component on top and a cushioning material. A plurality of synthetic resin bags that are accommodated in the box body through a cushioning material, and then the upper opening of the box body is closed. How to pack your body.