JP7133333B2 - Conveyed goods and packed goods - Google Patents

Description

TECHNICAL FIELD The present invention relates to an object to be transported and an object to be packed.

2. Description of the Related Art Conventionally, when transporting a load (an example of an "object to be transported"), it has been carried out in a state of being packed in various containers so as not to damage the load. At the time of packing, cushioning materials such as foamed plastics and sponges, shock absorbing materials having a honeycomb structure, etc. are used in order to avoid damage to the cargo due to shaking and vibration during transportation.

Here, when the load is a sheet-like pad, film, paper, or the like, it is conceivable that the load is packed in a laminated state. However, when highly flexible pads and sheets are transported in a stacked state, as the number of sheets increases, the weight of the stacked transported objects is applied to the transported objects below. The sheet positioned below is compressed and deformed. Further, at this time, if the positions of some of the stacked objects are displaced, the load is applied to the vicinity of the edges of the lower objects, which may deform. This is especially problematic for applications that require thickness accuracy.

In order to avoid such a problem, it is conceivable to accurately position the objects to be conveyed so that the entire surface of the objects to be conveyed is evenly weighted. However, transport of large sheets (e.g., having a width of 2.0 m or more) is severely restricted when flat sheets are transported. Considering the cost of manufacturing objects to be conveyed with good accuracy while maintaining the manufacturing yield and the time and effort required for positioning, it is not realistic to stack objects by positioning them accurately.

As a method for transporting an object to be transported without stacking and damaging the load, Patent Document 1 discloses a method of forming a recess in a wound object. A technique is described in which a flexible holding sheet 3 is stretched between the outer flaps 2 of the container so as to have a slack portion 4 between the outer flaps 2 of the container, and an object to be conveyed is placed on this holding sheet 3 in order to carry the container without It is

Utility Model Registration No. 3179631

However, the inventors of the present application have found that when an object to be transported is wound and stored in a container, the tip of the inner peripheral side of the object to be transported is on the outer peripheral side due to shaking during transportation, external pressure, etc. It was noticed that there were cases where streak-like scratches were made according to the shape of the tip when it came into contact with the object to be conveyed. In some cases, a plurality of flaws are formed at substantially constant intervals not only on the portion directly contacted by the tip, but also on the portion pressed from the tip at approximately the length of one round from the tip. In particular, in the case of a flexible sheet having a sheet compressibility (JIS L 1021) of 20% or more, a resin 100% modulus (JIS K 6251) of 20 MPa or less, and a thickness (JIS K 6550) of 0.5 mm or more, Significant flaws were sometimes formed when including thick and stiff PET substrates.

When scratches (including pressure marks and dent marks) are formed on the surface of the object to be conveyed, not only does it look bad, but the performance of the object to be conveyed deteriorates. For example, when a holding pad for holding an object to be polished is wound, if the flatness of the holding surface is damaged due to scratches, the object to be polished is not polished flat, resulting in poor planarization.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a package and a transported object that are less likely to be damaged even when the wound transported object is transported.

A packaged article according to an aspect of the present invention has a first main surface and a second main surface, and is rounded so that the first main surface is on the inside and the second main surface is on the outside. , an object to be transported that is folded back so that the second main surface is exposed at the end on the inner peripheral side, a container that houses the object to be transported, a tip of the folded end, and a position different from the tip a tape connecting the first major surface.

In such a package, the inner peripheral end of the object to be transported and the first main surface at a position away from the tip of the inner peripheral end are connected by a tape. For this reason, the movement of the inner peripheral side end is restrained. In addition, by folding back, a moment in a direction away from the first main surface of the object to be transported connected by the tape is applied to the tip of the inner peripheral side end. Therefore, it is possible to suppress streak damage caused by local contact of the tip of the inner peripheral side end portion with the first main surface on the outer peripheral side.

It should be noted that "connecting the end on the inner peripheral side and the first main surface at a position different from the tip of the end on the inner peripheral side" means not only a state in which the two are in contact, but also a state in which the two are separated from each other. It also includes the case where they are connected by a common tape or the like without contact.

For example, on the tape attachment surface, between the portion attached to the inner peripheral end and the portion attached to the first main surface at a position away from the tip of the inner peripheral end, You may make it provide a slight clearance which cannot be affixed.

Also, the tape may be attached to the first main surface or the second main surface at the inner peripheral edge.

When a portion of the tape is attached to the first main surface of the end on the inner peripheral side, the remaining portion of the tape is attached to the region where the tip of the end faces from the first main surface to the tip. . Therefore, it is possible to reduce the area of the object to be transported that cannot be used because the tape is attached.

On the other hand, when a portion of the tape is attached to the second main surface of the end portion on the inner peripheral side, the remaining portion of the tape is attached to the region from the first main surface facing the tip of the end portion toward the outer periphery. It will be. For this reason, the unusable area of the object to be transported due to the tape is large. However, since the tape can be simultaneously applied to the second main surface of the inner peripheral side end portion and the first main surface at a position away from the tip of the end portion, which face the same direction by folding back, the tape can be applied at the same time. easier to clean.

In addition, a transported object according to another aspect of the present invention has a first main surface and a second main surface, and is rounded such that the first main surface is on the inside and the second main surface is on the outside. The tape connects the inner peripheral end of the object to be transported to the first main surface at a position spaced apart from the tip of the inner peripheral end.

In such a transported object, the tape connects the inner peripheral side end to the first main surface at a position spaced apart from the tip of the inner peripheral side end, so that the movement of the inner peripheral side end is restrained. be. Therefore, it is possible to suppress streak damage caused by contact of the tip of the inner peripheral side end portion with the first main surface on the outer peripheral side.

ADVANTAGE OF THE INVENTION According to this invention, the package and the to-be-conveyed article which are hard to be damaged during transportation can be provided.

Sectional view of the package 10 according to the first embodiment holding pad 12'

[First embodiment]
Hereinafter, each embodiment of the present invention will be described in detail with reference to the drawings. The same reference numerals are given to the same elements, and overlapping explanations are omitted. Moreover, the following embodiments are examples for explaining the present invention, and are not intended to limit the present invention only to the embodiments. Furthermore, the present invention can be modified in various ways without departing from the scope of the invention.

FIG. 1 is a cross-sectional view schematically showing a package 10 according to the first embodiment. The object to be transported is, for example, a thin rectangular holding pad 12 having a width of 2400 mm, a length of 2750 mm, a thickness of 0.05 mm to 2.0 mm, and a weight of several kilograms. The holding pad 12 has a laminated structure including, for example, a holding layer made of polyurethane resin for holding an object to be polished, an adhesive layer, a polyethylene terephthalate (PET) layer, an adhesive layer, and release paper. is doing.

Such a holding pad 12 is peeled off the release paper to expose the adhesive layer, and is attached to a processing table for placing the object to be polished, while the surface of the holding layer is moistened with water. By sucking and holding an object to be polished such as a glass substrate for a large liquid crystal display or a silicon wafer for manufacturing a semiconductor device, the object to be polished can be fixed.

When storing such a holding pad 12 in the container 14 and transporting it, the surface of the holding layer to be protected (an example of the "first main surface") faces inward and the back surface provided with release paper is prepared in advance. The holding pad 12 is wound so that (an example of the “second principal surface”) faces outward. For example, by winding in the longitudinal direction so that the radius is about 60 mm to 70 mm (about 400 mm per turn) with the lateral direction as the axis of rotation, the holding pad is wound about 7 times and has an outer diameter of about 150 mm. , is formed in a cylindrical shape with a height of 2400 mm.

As shown in the figure, the inner peripheral side end 12B of the holding pad 12 is folded back so as to be rounded, and furthermore, the second main surface of the tip 12B1 of the inner peripheral side end 12B and the folding result , the first major surfaces of the holding pads 12 at positions where the tips 12B1 are adjacent are connected by the tape 16. As shown in FIG. In the present embodiment, part of the tape 16 sticking surface is stuck to the second main surface near the tip 12B1 exposed by folding back of the inner peripheral side end 12B, but this is not the only option. Instead, the tape 16 may be attached to the first main surface near the tip 12B1. In this case, the portion that cannot be used as the holding pad 12 because the tape 16 is attached can be reduced.

The tape 16 extends from one end to the other end in the axial direction (perpendicular to the paper surface of FIG. 1) of the cylindrical holding pad 12, and extends from the inner peripheral end 12B and the inner peripheral tip 12B1. It connects with the 1st main surface. However, the present invention is not limited to this. For example, when a soft holding pad with relatively low rigidity (modulus of elasticity) is wound, the bending moment applied to the tip of the inner peripheral side becomes smaller than when the rigidity is high. For this reason, instead of the entire area in the axial direction, for example, at only two locations on both ends in the axial direction, the inner peripheral side tip and the first main surface at a position spaced from the inner peripheral side tip are connected by tapes, respectively. can be

In addition, in this embodiment, the inner peripheral tip 12B1 attached by the tape 16 and the first main surface of the holding pad 12 at a position spaced from the inner peripheral tip 12B1 are in contact or sufficiently close to each other. By sticking the tape 16 so that both are in contact with each other, it is possible to constrain the inner circumference side tip 12B1 so as not to move.

However, the present invention is not limited to this. A portion of the tape 16 that is attached to the second main surface near the inner peripheral tip 12B1 and a portion that is attached to the first main surface at a position spaced from the inner peripheral tip 12B1 so that the two do not come into contact with each other. A gap may be provided between the two that is not attached to either.

As described above, as a result of folding back the inner peripheral side end portion 12B of the holding pad 12, the inner peripheral side end portion 12B includes the first main surface of the first portion 12B2 along the holding pad 12 immediately outside the outer peripheral side. , away from the first major surface of the holding pad 12 on the outer peripheral side, and a small area surrounded by the first major surface of the second portion 12B3 folded back to expose the second major surface. Here, it is preferable that the connecting portion between the first portion 12B2 and the second portion 12B3 is folded back so as to be rounded. This is because, if the connecting portion between the first portion 12B2 and the second portion 12B3 is not rounded and bent squarely, the connecting portion may contact and damage the adjacent first main surface. be. In order to suppress the occurrence of such scratches, the length of the first portion 12B2 and the second portion 12B3 is secured such that the connecting portion between the first portion 12B2 and the second portion 12B3 is rounded, and the inner peripheral side is secured. It is preferable to fold the end portion 12B.

On the other hand, the outer edge 12A of the holding pad 12 is a free end as shown in FIG. However, since the outer edge 12A can also cause scratches, as shown in FIG. It is preferable to define the radius of the holding pad 12 when wound so as to offset in the circumferential direction.

As shown in FIG. 1, such retaining pads 12 are housed in a container 14 . The container 14 is made of a paper material such as corrugated cardboard, and has a rectangular parallelepiped shape with a substantially square cross section and a long length in the depth direction. is a container.

In addition, a soft film 14E that is loosened to such an extent that it does not come into contact with the bottom surface 14C of the container 14 is stretched over the two wall surfaces 14A and 14B facing the back surface of the holding pad 12 among the wall surfaces of the container 14. there is By placing the holding pad 12 on the loosened film 14E in this way, it is possible to prevent the holding pad 12 from rubbing against the wall surface 14A or 14B of the container 14, or the bottom surface 14C.

After the holding pad 12 is stored, the container 14 may be provided with a lid 14D that covers the upper surface.

A plurality of containers 14 may be connected by connecting the wall surface 14A of such a container 14 to the wall surface 14B of another container 14 . For example, by connecting four containers 14, the number of holding pads 12 that can be transported at one time is increased, and rigidity is increased, so deformation of the container 14 due to the weight of the holding pads 12 or the like can be suppressed. can be done.

Also, after connecting a plurality of containers 14, a sheet of film 14E may be stretched from the wall surface 14A of the container 14 at one end to the wall surface 14B of the container 14 at the other end. With such a configuration, it is possible to save the trouble of cutting off the film 14E for each container 14 and passing it between the wall surface 14A and the wall surface 14B.

Furthermore, a plurality of containers 14 connected in this manner may be stacked in multiple stages in the height direction. With such a configuration, a large number of holding pads 12 can be efficiently transported.

FIG. 2 shows the second main surface at the tip 12B1′ of the inner peripheral side end 12B′ of the wound holding pad 12′ folded back, and It is a state that the first main surface is attached by tape 16'. As a result of being folded back, the inner peripheral side end portion 12B' is formed into a first portion 12B2' that is loosely wound along the holding pad 12' on the outer peripheral side, and a tip end portion 12B1 that is folded back to expose the second main surface. ' is provided. Also, a small area surrounded by the first main surface of the first portion 12B2' and the first main surface of the second portion 12B3' is provided.

As shown in FIG. 2, the connecting portion between the first portion 12B2' and the second portion 12B3' is folded back so as to be rounded, so there is no risk of the connecting portion colliding and damaging the adjacent first main surface. .

In addition, the tape 16' extends along the axial direction of the winding of the holding pad 12', the second main surface of the inner peripheral end portion 12B', and the first main surface of the holding pad 12' at a position away from the tip 12B1'. is pasted.

According to the embodiment described above, even if the object to be transported such as the holding pad is wound, the inner peripheral end portion can be prevented from coming into contact with the facing surface, so that the object is less likely to be damaged during transportation. Packages as well as transported items can be provided.

In addition, the object to be transported is not limited to a holding pad having a PET base material, and may be one having nylon, a polyvinyl compound, a non-woven fabric, or the like, for example. Further, a polishing pad having a surface provided with a polishing cloth for polishing an object to be polished may be used as the object to be transported.

Also, the shape of the object to be transported is not limited to a rectangle. For example, it may be circular or other shape. However, by applying the present invention to objects to be transported and their packages that are likely to be damaged due to their high rigidity and heavy weight, further effects are exhibited.

DESCRIPTION OF SYMBOLS 10... Package 12... Holding pad 12A... Outer peripheral edge part 12B... Inner peripheral edge part 12B1... Tip 12B2... First part 12B3... Second part 14... Container 14A... Wall surface 14B ... wall surface, 14C ... bottom surface, 14D ... lid, 14E ... film

Claims (6)

It has a first main surface and a second main surface, and is rounded so that the first main surface is on the inside and the second main surface is on the outside. It is folded back so that the second main surface is exposed,
An object to be transported, wherein the folded back end on the inner peripheral side and the first main surface at a position different from the tip of the end are connected by a tape. A part of the tape is attached to the second main surface at the end on the inner peripheral side, and another part is attached to the first main surface at the different position. The object to be transported according to claim 1. 2. The tape connects an end on the inner peripheral side of the transported object and a first main surface at a position different from the tip from one end in the axial direction of winding to the other end in the axial direction. 2. The object to be transported according to 2. The object to be transported according to any one of claims 1 to 3, wherein the object to be transported is a holding pad for holding the object to be processed by the first main surface. The object to be transported according to any one of claims 1 to 4, wherein the object to be transported is a polishing pad for polishing the object to be processed with the first main surface. It has a first main surface and a second main surface, and is rounded so that the first main surface is on the inside and the second main surface is on the outside. a transported object that is folded so that the second main surface is exposed;
a container that accommodates the object to be transported;
a tape that connects the folded back end on the inner peripheral side and the first main surface at a position different from the tip of the end;
package with

Images