JP3014637B2 - Packing tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a packing patch.

[0002]

2. Description of the Related Art Conventionally, a packing patch a as shown in FIG. 7A has been used for transporting or storing an article to be packed b. This is used by being applied to a local portion such as an end or a corner of the packaged object b, and protects such a portion by mitigating an external impact so as not to be damaged by contact with another. As shown in FIG. 7B, the packing tool a is formed of a paperboard in which a plurality of base papers a1 to a1 are stacked for the purpose of reducing impact. Then, as shown in FIG. 7 (C), the laminated body is formed into an L-shaped angle bent from the bent portion c so as to follow the corner of the above-mentioned packaged object b. Also, as shown in FIG. 8, when the items to be packed b to which the fittings a are attached are stacked,
The patch a attached to the lower packing object b serves as a support, and receives a part of the load in the vertical direction to protect the packing object.

[0003]

SUMMARY OF THE INVENTION The laminate forming the packing patch is inexpensive, lightweight and easy to handle, easy to dispose of at the time of disposal, and has an impact on the environment. As described above, paper or paper is used as a main material because of its small quantity and easy recycling. However, such a patch made of paper as a main material has a high water absorption, and has a problem that its strength, particularly its buckling strength is deteriorated or deformed by absorbing water or moisture from the outside. Have.

The inventor of the present application studied the cause of this problem and analyzed that the cause was caused by the following two items. The first is the problem of the properties of the paper itself. Specifically, there is the problem that the strength of the paper itself deteriorates due to water absorption, and the paper expands and contracts due to humidity changes, such as the fact that the paper stretches due to water absorption. It's a problem that will happen. Second
Is a problem caused by the shape of the patch, and a problem that the patch is deformed due to partial elongation of the paper. The second problem is also related to the problem of expansion and contraction of the first paper, and will be described more specifically with reference to FIG. A side end face d of a patch a made of a laminate mainly made of paper exposes each layer of the laminated base papers a1 to a1.
The water absorption is high, and such water absorption tends to cause elongation of the paper. On the other hand, the bent portion c only shows the surface of the paper, and has a lower water absorption than the side end surface d where the lamination surface is exposed. The elongation is smaller than that of the end face d.

As a result, as shown in FIG. 9B, the abutment a is deformed into a warped state. That is, FIG.
As shown in (A) and (B), while the length t of the side end face d greatly increases, the length s of the bent portion c increases little or hardly, so that it bends in a bow shape. Therefore, FIG.
As shown in FIG. 9, when a vertical load is applied by the patch a, a force F along the longitudinal direction of the patch a as shown in FIG. 9A is applied. However, it is difficult to maintain the shape against the force F, which causes buckling. Originally, as long as the abutting tool a extends straight in the longitudinal direction, such a force F
However, if the above-mentioned warpage occurs, the above-described bending and buckling tend to occur. In addition, if it is bowed in this manner, it is difficult to conform to the package, and it becomes inconvenient to use as a packing patch.

An object of the present invention is to solve the problem that strength, especially buckling strength, is deteriorated or deformed due to the properties of the paper itself under humid conditions. Is intended to more reliably prevent deterioration of the strength such as the buckling strength of the patch and the occurrence of deformation.

[0007]

According to a first aspect of the present invention, there is provided a packing patch comprising a laminate mainly composed of paper, and having a bent portion 4 between both end surfaces 10 of the laminate. In the above, the side end of at least one sheet body 20 such as paper constituting the laminate is formed as a protruding portion 31 protruding from the side end of another sheet 2, and the protruding portion 31 And a covering means for covering both side surfaces 10 and 10 that covers the other sheet-like body 2 side end as a waterproofing means for providing resistance to the package. Solves the above problem.

In the first aspect of the present invention, in particular, with respect to the both end surfaces 10, 10 where moisture easily penetrates and the entire applicator tends to be warped due to the penetration of moisture, the penetration of moisture is prevented by the waterproofing means between the inner surface and the outer surface. By holding the same or less, the both end surfaces 10 and 10 are prevented from extending from the bent portion 4, and no warpage is caused.

That is, the paper material on both side end faces 10 and 10 is prevented from being greatly expanded, and is set to such an extent that substantially the same expansion as the bent portion 4 occurs. This prevents the length of the side end face 10 and the bent portion 4 from being lengthened and short, and does not cause warpage as in the related art. Therefore, the linearity of the patch is maintained, and the ease of contact with the package is not impaired. In addition, even when an external force is applied, the patch does not easily deform, and the package can be reliably protected for a long period of time.

Moreover, in the first invention of the present application, as a waterproofing means, the side end of at least one sheet member such as paper 20 constituting the laminate protrudes from the side end of the other sheet member 2. The protruding portion 31 is used, and the protruding portion 31 covers the other side end of the sheet-shaped body 2 as the covering portion 3 covering the both end surfaces 10, 10. For this reason, even if the coating portion is provided, it is not necessary to prepare this separately from the laminate, and it is extremely simple and does not significantly affect the conventional low cost.

The packing patch according to the second invention of the present application is the packing patch according to the first invention, wherein the covering portion 3 is a sheet provided with a waterproof layer 201 made of resin, metal, or the like. It is characterized by. With this configuration, the cover 3 achieves almost perfect waterproofing. Therefore, by water penetration,
The strength of the laminated paper does not deteriorate.

In the third invention of the present application, the first invention
Alternatively, in the packing device according to the second invention, the laminated body includes an inner surface positioned inside by the bending, an outer surface positioned outside by the bending, and the both end surfaces 10,
10 and a front and rear end face 7, 7 located between the both side end faces 10, 10; and a waterproof means for providing resistance to penetration of moisture is also provided on the front and rear end faces.

According to a fourth invention of the present application, in the packing patch according to any one of the first, second, and third inventions, the laminate is positioned inside by the bending. The waterproof means, which has an inner surface, an outer surface located outside by the bending, the both end surfaces 10, 10, and front and rear end surfaces located between the both end surfaces 10, 10, is provided with a waterproofing means which is resistant to moisture penetration. An article is also provided that is also provided on at least one layer between the inner surface and the outer surface. According to a fifth aspect, in the packing patch according to the fourth aspect,
A water-proofing means for providing resistance to penetration of moisture is provided in a layer located on the inner surface and the outer surface of the laminate.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of a packing patch according to the present invention.

As shown in FIG. 1A, the patch 1 is composed of a laminate of a plurality of sheets 2... 2 made of base paper. A bent portion 4 is formed between both end surfaces 10, 10 of the patch 1, and has a substantially L-shape in cross section. FIG. 2 shows the entire shape of the patch 1. 10, 10 are side end faces, 11 is an inner surface located inside by forming the bent portion 4, 12 is an outer surface located outside due to the formation of the bent portion 4,
Reference numerals 7, 7 denote front and rear end faces.

The side end surface 10 of the laminated body of the sheet-like bodies 2... 2 is covered with a covering member 3. The covering portion 3 can be implemented by a sheet member made of the same material as the sheet members 2. For the covering portion 3, a sheet-like body 20 shown in FIG. This is a paper 202 in which a waterproof layer 201 such as a thermoplastic resin layer or a metal foil is provided on both front and back surfaces. Such a covering portion 3 is adhered by glue, heat sealing, or the like, and is adhered to the side end surface 10 to cover the side end surface 10.

The covering section 3 will be described. In the above-mentioned packing patch, the covering part 3 is formed by forming a part of the laminated sheet 2 into a protruding part 31 in which a side end of the part protrudes from a side end of another sheet 2. Have been. The protruding portion 31 covers the side end surface 10 of another sheet 2 as the covering portion 3.

The manufacturing process will be described in detail. As shown in FIG. 3A, a sheet-like body (the lowermost sheet-like body 20 in the figure) constituting one surface of the laminate is shown.
Are formed so as to have a larger width in the horizontal direction than the other sheet-like bodies 2. On the other hand, among the sheet-like bodies 2... 2, the sheet-like body (the uppermost sheet-like body 21 in the figure) constituting the other surface of the laminated body is conversely compared with the other sheet-like bodies 2. Therefore, the width in the horizontal direction is small.

Next, such a laminated body is bent into the above-described substantially L-shaped cross section using the male roller 5 and the female roller 6 shown in FIG. 3B. The male roller 5 has a shape in which the bottom surfaces of two cones abut against each other. Further, the female roller 6 has a shape in which the tops of two cones abut against each other, opposite to the male roller 5. The sheet-like body 2 ... 2, 20, 21
Is forcibly bent into an L-shape by passing between the rollers 5 and 6 while feeding in the longitudinal direction. In the figure,
Although only one set of rollers 5 and 6 is shown, a plurality of sets of rollers are arranged in the feed direction, the bending angle of each set of rollers is gradually changed, and the set of rollers is gradually bent to a desired angle. To go.

FIG. 3C shows a packing patch 1 obtained by molding the laminate in this manner. When shifting from FIG. 3 (B) to FIG. 3 (C), the protruding portion 31 is bent inward. This operation is also performed automatically by using a roller or a jig while feeding the laminate in the longitudinal direction. Can be folded.

As shown in FIG. 3 (C), a patch 1 for packing is used.
In the figure, the end 20a of the outer sheet 20 and the end 21a of the inner sheet 21 are abutted.
By forming in this manner, penetration of moisture into the inside of the laminate is more unlikely to occur. In addition, the ends of the inner and outer sheet-like bodies 21 and 20 may be overlapped other than abutting, or a gap may be provided between the ends.
In short, it is only necessary to cover the side end surface, but there is no step
Butting is most advantageous in enhancing the effect of preventing the penetration of moisture.

Next, another embodiment will be described with reference to FIG. FIG. 4 (A) shows the sheet-like body 2 having the same width as that of the other sheet-like bodies 2.
The protruding portion 31 of 0 covers only the side end face 10. For this reason, the mating part 22 is also provided in FIG.
It is closer to the left and right ends than that shown in FIG. FIG.
(B) shows the sheet 20 and the sheet 2 shown in FIG.
1 is replaced. Accordingly, the butting portions 22 are located at both lower ends in the figure.

FIG. 4C shows that the protruding portion 31 of the sheet-like body 20 is formed longer, and the sheet-like body 20 alone covers the outside of the laminate. Therefore, the butt 22
Is one place, and both ends 20 of one sheet 20
a and 20a abut each other. In this embodiment, the butting portion 22 is located inside the L-shaped corner formed by the main body 1. Since there is only one butt 22, permeation of moisture is less likely to occur than that having two butt 22. FIG. 4 (D)
In FIG. 4C, the abutting part 22 is located only at one place outside the L-shaped corner formed by the backing tool 1, contrary to the one shown in FIG.

FIG. 4E shows the outer sheets 20, 20.
Both of them are formed as having the same protruding portions 31 and 31. For this reason, butting part 2
2 and 22 are located on the side end surface 10. FIG. 4 (F)
Is obtained by exchanging the positions of the sheet 20 and the sheet 21 shown in FIG. Therefore, the abutting portions 22 are opposite to those shown in FIG.
In the figure, it is located at the lower part of the patch 1.

In addition to the method shown in FIGS. 3 and 4, the coating method can be changed as appropriate. For example, a single sheet may be used to cover the whole of the patch. Further, the right side end face may be covered with the outer sheet-like body 20, and the left side end face may be covered with the inner sheet-like body 21.

In each of the above-described embodiments, the protruding portion 31 constituting the covering portion 3 is constituted by one sheet-like body. The part 3 may be composed of a sheet-like body having two or more layers. Until now, the covering portion 3 has been described as being formed using a sheet-shaped body located on the surface of the laminate, but in addition, the sheet-shaped body located at the center of the laminate has the protruding portion 31. It is also possible to carry out the invention by covering another sheet-like body (not shown). In this case, the sheet-like body on the front side also
1, 31 and both protruding portions 31, 31
It is also possible to cover the laminate and carry out.

As described above, the covering portions are formed on both side end surfaces 10 and 10.
The surface of the patch 1, that is, the inner surface 11 and the outer surface 12, together with the both end surfaces 10, 10, may be provided on a portion other than the both end surfaces 10, 10 or together. Further, the present invention can be implemented even if it is provided at the front and rear ends 7,7.

As the waterproofing means, it is also possible to form an impregnated portion of a synthetic resin or other resin on the surface of the laminated body other than the above-mentioned covering portion 3 and to use this as a waterproofing means (not shown). In this case, the laminate is directly immersed in a resin liquid to impregnate the entire surface with the resin. Of course, similarly to the case of the covering portion, the layer may be formed on a part of the surface of the laminate (for example, only on both end surfaces).

Here, an embodiment which is possible when applying waterproofing means to the whole of the patch will be described together (see FIG. 2).

First, the covering portion 3 is formed on the entire patch, that is, the side end surfaces 10, 10, the inner surface 11, the outer surface 12
In addition, it is possible to form the covering portion 3 having complete waterproofness (completely blocking the penetration of moisture) with respect to all of the front and rear end surfaces 7 and 7. Secondly, in the above case, only the inner surface 11 and the outer surface 12 form the covering portion 3 having complete waterproofness, and the other (side end surfaces 10, 10 and front and rear end surfaces 7, 7) are warped. It is possible to implement a coating with a coating portion 3 having a waterproof property enough to stop permeation of moisture that does not cause connected partial elongation.

The waterproof means can be embodied by applying different means to each of the above-mentioned parts of the patch. In the first and second examples, the waterproofing means is formed on almost the entire surface of the patch, but the waterproofing means is provided only on a part of the patch, including the example shown in FIG. It does not prevent implementation as being applied.

Each embodiment of FIG. 5 shows another embodiment, but it is an essential condition of the present invention to provide the covering portion 3 according to the first invention. Therefore, when implementing the following embodiment, if it implements as having the said cover part 3, it will be implementation of the 1st invention of this application. First, FIG. 5A shows another embodiment. Surface layer of laminate (inner surface 11 and outer surface 12 according to the above embodiment)
In addition to the above-described embodiment in which a covering portion is formed or a resin-impregnated layer is formed, as shown in FIG. 5A, a layer inside the surface layer may be formed as a waterproof layer. This figure 5
In (A), the waterproof layer 3a is provided at a relatively shallow position near the surface layer. However, the position and number of the waterproof layers 3a are not limited to those shown in FIG.
It is also possible to form and implement a waterproof layer 3a in a different position and quantity (for example, one layer or three or more layers) different from that shown in FIG. Further, the thickness of the waterproof layer 3a is set to 50 microns or more. When using a metal foil or forming a resin impregnated layer for the waterproof layer 3a, the thickness may be smaller than this.
It shall have a thickness of 0 microns. In this case, the thickness is necessary for obtaining a waterproof effect that cannot be obtained with a conventional adhesive layer such as heat sealing.

The patch may not be formed of a single laminated body but may be formed by further laminating a plurality of laminated bodies. For example, as shown in FIG. 5B, a laminate 101 having waterproofing means such as the coating layer 3 is formed by stacking separately formed laminates 100 and 102 having no waterproofing means. Is also feasible. This figure 5
In (B), laminates 100 and 102 having no waterproof means are laminated on the inner surface and outer surface side of a laminate 101 having waterproof means such as the coating layer 3. In addition, as shown in FIG. 5C, a laminate 102 having no waterproof means only on the outer surface side of the laminate 101 having the waterproof means.
Alternatively, as shown in FIG. 5D, it is also possible to provide a laminate 100 having no waterproof means only on the inner surface side of the laminate 101 having the waterproof means. Further, contrary to the one shown in FIG. 5B, a laminate 101 having waterproofing means such as a coating layer 3 is provided on both inner and outer surfaces of the laminate 103 having no waterproofing means as shown in FIG. , 101 may be provided. FIG.
(B) to (E), the number of various kinds of laminates may be different, and further, a patch may be formed in another combination to be implemented (not shown).

In the above embodiment, the patch 1 is
What is formed separately from the packing member and temporarily applied to the package b from the outside only when the package b is carried is listed. However, it is not limited to such an embodiment. For example, when the packing member is a box body such as a cardboard box, the packing member may be used by bonding it to the outside of such a box in advance. It is also possible to carry out the present invention by inserting it into the inside of the box, that is, as being in direct contact with the article to be packed. Further, in each of the above-described embodiments, the packing patch has a substantially L-shaped cross-sectional view, but is not limited to such a shape. For example, as shown in FIG. 6A, two bent portions may be provided to form a substantially U-shaped channel in cross section. As shown in FIG. 6B, the bent portion may be curved to have a U-shaped cross section, and the cross-sectional shape may be appropriately selected and implemented.

Further, the patch according to the present invention is composed mainly of paper, and includes a synthetic resin film or metal foil other than paper as a part of the sheet-like body constituting the laminate. You may. In particular, as the outer and inner sheets, a waterproof sheet such as a synthetic resin or a metal foil is used, a synthetic resin or a laminated sheet of metal and paper is used as described above, or a synthetic resin is used for the paper. It is also desirable to improve the waterproofness by impregnating with water. However, as long as the warpage is eliminated, the outer and inner sheet members together with the other sheet members 2... 2 may be made of only paper. It is also preferable to form a coating on the front and rear end surfaces 7 (FIG. 1A), especially a coating with waterproof properties. Also, a synthetic resin layer may be formed on the front and rear end faces 7,7.

The manufacturing method of the patch according to the present invention can be appropriately modified in addition to the above-mentioned ones.
As described in Japanese Patent No. 245956, a laminate can be formed by a method of folding a sheet while stacking it.

[0037]

According to the present invention, the elongation of the side end surface and the elongation of the bent portion are substantially equal to each other to prevent warpage that has occurred with time, and to provide an appropriate shape and strength as an applicator for a packaged object. The present invention has been able to provide a packing applicator capable of maintaining the above condition. That is, the present invention eliminates the warpage of the patch which has conventionally occurred due to the absorption of moisture, and has made it possible to reliably protect the packaged goods for a long period of time. In addition, it is possible to cover an end portion of the other sheet-shaped body, that is, an exposed portion of the laminated portion, by using a part of the sheet-shaped body constituting the patch, which is more suitable for mass production. In addition, by covering in this manner, the side end surface which is easily damaged by receiving an external force is protected, and the dent due to the impact is reduced. In addition, it hides the ugly laminated portion and makes it look good. In particular, since the covering portion 3 is a sheet provided with a waterproof layer 201 of resin, metal, or the like,
It can exhibit a sufficient effect for waterproofing.

[Brief description of the drawings]

FIG. 1 (A) is a partially cutaway perspective view showing a use state of a packing patch according to the present invention, and FIG. 1 (B) is a most preferable embodiment as a covering portion of such a packing patch. FIG. 2 shows a schematic vertical sectional view of a partly notched main part of the embodiment.

FIG. 2 is an overall perspective view of a packing patch according to the present invention.

FIG. 3 shows a manufacturing process of the packing patch of FIG. 1 (A).
Is a schematic front view showing an initial step, (B) is a schematic front view showing an intermediate step, and (C) is a schematic front view showing a completed state.

FIGS. 4A to 4F are front views each showing another embodiment other than the embodiment shown in FIG. 1;

FIG. 5A is a schematic vertical sectional view of a main part showing another embodiment different from the embodiment shown in FIG. 1; (B) is a schematic longitudinal sectional view showing another embodiment. (C) is a schematic longitudinal sectional view showing still another embodiment. (D) is a schematic longitudinal sectional view showing still another embodiment. (E) is a schematic longitudinal sectional view showing still another embodiment.

6 (A) and 6 (B) are schematic front views showing another embodiment.

FIG. 7A is a partially cutaway perspective view showing a use state of the conventional patch, and FIG. 7B is a schematic front view of the conventional packing patch of FIG. (C) is a front view showing the completed state.

FIG. 8 is a perspective view showing a state in which a plurality of packages equipped with the above-mentioned conventional patch are stacked.

9 (A) is a plan view showing a problem of the conventional packing patch shown in FIG. 5, and FIG. 9 (B) is a perspective view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Sheet-shaped body 3 Coating part 4 Bending part 10 Side end (of the laminated body) 31 Protruding part

Claims (5)

(57) [Claims] 1. A packing device comprising a laminate mainly made of paper and having a bent portion (4) between both end surfaces (10) of the laminate. At least one sheet of paper or the like (20)
Side protrudes from the side end of the other sheet-like body (2),
The protruding portion (31) is a protruding portion (31).
(3) A packing patch, wherein the side end of the other sheet-like body (2) is covered. 2. The coating section (3) is a waterproof layer made of resin, metal, or the like.
2. A sheet comprising (201)
A packing patch as described. 3. The laminated body according to claim 1, wherein the inner surface is located on the inner side by the bending, the outer surface is located on the outer side by the bending, the both end surfaces (10), (10), and the both end surfaces (10). 3) The front and rear end faces (7) and (7) located between the front and rear end faces, wherein waterproof means for resisting the penetration of moisture is also provided on the front and rear end faces. Packing tool. 4. The laminate has an inner surface located inside by the bending, an outer surface located outside by the bending,
It has the both end surfaces (10), (10), and front and rear end surfaces located between the both end surfaces (10), (10), and waterproof means for resistance to water penetration is provided at least between the inner surface and the outer surface. The packing patch according to any one of claims 1 to 3, wherein the packing patch is provided on one layer. 5. The packing patch according to claim 4, wherein waterproof means for resisting permeation of moisture is provided in layers located on the inner surface and the outer surface of the laminate.