JPH1159618A - Package of cementitious board material, and packaging method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of efflorescence for a long period of time. SOLUTION: Juxtaposed bodies 1B, each formed by binding bound bodies 1A of cementitious board materials arranged side by side in a specified numbers, are piled up in two tiers of upper and lower sides and laid on a pallet 4, and thereby an accumulated body IC is formed. The upside and the upper end parts of the surrounding four sides of the accumulated body 1C are covered with an air cushion sheet 5, and the surrounding four sides and the peripheral edge at the upside of the accumulated body 1C are wrapped round with a stretch film 6, and thus a package body 1D is formed and furthermore, the package body 1D is covered with a heat-insulating cover 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing body of a cement-based plate material such as a roof tile and a packing method thereof.

[0002]

2. Description of the Related Art Conventionally, a cement-based plate material such as a roof tile has been stacked in a set number, then sequentially stacked on a pallet, packed and stored. That is, as shown in FIG. 13, a set number of tiles 11 are bound by a PP band 12 to form a bundle 11A, while a set number of bundles 11
A are arranged in parallel and bound by the PP band 12a to form a stack 11B.
14, the air cushion sheet 14 is placed so as to cover the upper surface of the stack 11B and the upper ends of the four surrounding sides, and then, as shown in FIG. A film 15 such as a stretch film made of a thermoplastic resin having stretchability and adhesiveness is sequentially wound around four sides and a peripheral edge of the upper surface of the stacked body 11B including the above, and packed to form a package 11C ( For example, Japanese Patent Application Laid-Open No. 7-205927, which is filed by the applicant.
Or JP-A-8-53106).

[0003]

However, as described above, when a sheet is hung on a stack of tiles stacked on a pallet and then the film is wound around the pallet and packed, rainwater or the like may enter the inside of the package. Although it can prevent infiltration, if moisture contained in cement-based plate material such as tiles evaporates due to radiant heat such as sunlight, the water vapor is blocked by sheets and films and stays inside the package. become. As a result, when the water vapor inside the package reaches the saturated water vapor amount, dew forms inside the package, and the condensed water adheres to the roof tiles, thereby eluting the alkali component of the cement. There was a problem that occurred.

[0004] The present invention has been made in view of the above problems, and an object of the present invention is to provide a package of cement-based plate material capable of preventing the occurrence of efflorescence for a long period of time.

Another object of the present invention is to provide a method of packing a cement-based plate which can prevent the breakage of the cement-based plate and prevent the occurrence of efflorescence while automatically packing the cement-based plate. is there.

[0006]

According to the first aspect of the present invention, a plurality of bundles of cement-based plate materials are arranged in parallel in a set number, and the bundled juxtaposed bodies are stacked on a pallet in two vertical stages. A stack is formed, the upper surface of the stack and the upper end of the four peripheral sides are covered with a sheet, and the peripheral four sides and the upper peripheral edge of the stack are wound by a film to form a package, The package is characterized in that the top surface and the four surrounding sides are covered with a heat insulating cover.

According to a second aspect of the present invention, a bundle of cement-based plate members is arranged in parallel in a set number and the bundled juxtaposed bodies are stacked on a pallet in two vertical stages to form a stacked body. The top and the four peripheral sides of the stack are covered with a sheet, and the four peripheral sides of the stack are filmed except for the upper ends so that the upper ends of a pair of opposing side surfaces of the stack are exposed. Characterized by being wound. Further, the invention according to claim 3 is:
A set number of bundles of the cement-based plate material are arranged in parallel in a set, and the bundled juxtaposed bodies are stacked on a pallet in two upper and lower stages to form a stack, and the upper surface of the stack and the upper end of the four peripheral sides are sheets. In addition, so that the upper end of a pair of opposing side surfaces of the stack is exposed, the surrounding four side surfaces of the stack are wound by a film except for the upper end thereof to form a package. The package is characterized in that the top surface and the four surrounding sides are covered with a heat insulating cover.

On the other hand, in the invention according to claim 6, a set number of cement-based plate members are united in a bundle and the set unit is arranged in parallel and bound to form a juxtaposed body, and then the juxtaposed body is buffered. By stacking sequentially on the pallet through the material to form a stacked body consisting of two vertically arranged juxtaposed bodies, then, a sheet is placed so as to cover the upper surface of the stacked body and the upper end of the four peripheral sides, A film is wrapped around the four peripheral sides and the upper peripheral edge of the stacked body to form a package, and further, a heat insulating cover is provided so as to cover the upper surface and the four peripheral sides of the package.

Further, according to the present invention, a set number of cement-based plate members are bound and formed into a set number of bundles in parallel and bound to form a juxtaposed body, and then the juxtaposed body is buffered. By stacking sequentially on the pallet through the material to form a stacked body consisting of two vertically arranged juxtaposed bodies, then, a sheet is placed so as to cover the upper surface of the stacked body and the upper end of the four peripheral sides, The film is wound around the four sides of the stack excluding the upper ends so that the upper ends of a pair of opposing side surfaces of the stack are exposed.

Further, according to the present invention, after the set number of cement-based plate members are bound and formed into a set number in parallel and bound to form a juxtaposed body,
By stacking the juxtaposed bodies on a pallet in order via a cushioning material, a stacked body composed of upper and lower juxtaposed juxtaposed bodies is formed. In addition, a film is wrapped around the four sides of the stack except for the upper end so as to expose the upper ends of a pair of opposing side surfaces of the stack, and a package is formed. The heat insulating cover is covered so as to cover the upper surface and the four surrounding side surfaces.

According to a ninth aspect of the present invention, a set number of cement-based plate members are tied to form a juxtaposed body by arranging and tying a set number of tied sheets in parallel and tying the juxtaposed body. A stack consisting of two upper and lower juxtaposed bodies is formed by sequentially loading the pallet via a cushioning material having one or more rows of openings formed in the direction, and then the upper surface of the stack and the surrounding four A sheet is placed so as to cover the upper end of the side surface, and the film is wound around the four sides of the stack except for the upper end so that the upper end of a pair of opposing side surfaces of the stack is exposed. It is characterized by the following.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a first embodiment of a package of a cement-based plate material of the present invention.
The sheet 5 covers the upper surface and the upper end of the four surrounding sides of the stacked body 1C formed of the two-stage juxtaposed bodies 1B, 1B of the roof tile 1 (see FIG. 2) which is a cement-based plate material. The stacked body 1C is formed by winding the four peripheral sides and the peripheral edge of the upper surface with a film 6, and is further covered with a heat insulating cover 7 so as to cover the upper surface and the four peripheral sides of the package 1D.

Here, as shown in FIG. 3, the juxtaposed body 1B of the roof tiles 1 is made up of a set number of the bundles 1A arranged in parallel with the PP.
Band 1a is formed by binding with band 2a.
Is formed by binding a set number of roof tiles 1 with a PP band 2 as shown in FIG.

At this time, in order to prevent breakage of the roof tile 1, a cushioning material 3 is laid on the pallet 4 and the lower juxtaposed body 1B. It is loaded on the pallet 4 so as to be vertical.

As the sheet 5, an air cushion sheet or a polyvinyl chloride sheet having a waterproof property is used, and as the film 6, a stretch film made of a thermoplastic resin having stretchability and adhesiveness is used. You. Further, a polyethylene laminate sheet or the like is used for the heat insulating cover 7.

As a result, cracks and the like of the roof tile 1 can be reliably prevented during transportation or storage, and a change in the internal temperature of the package 1D can be suppressed while preventing infiltration of rainwater or the like by the heat insulating cover 7. It becomes possible. For this reason, it is possible to prevent the moisture inside the roof tile 1 from evaporating due to an increase in the internal temperature of the package 1D, and to prevent the water vapor from falling below the dew point temperature to form dew.
It is possible to prevent the occurrence of efflorescence due to the elution of alkali due to the adhesion of dew water to the roof tile 1.

Specifically, 640 mm long × 420 mm wide
X Four tiles 1 each having a thickness of 10 mm and a weight of 4.7 kg are stacked and tied together with a PP band 2 using a tying machine (not shown) to form a tying body 1A, and then 14 tying bodies 1A are arranged in parallel.
Similarly, the juxtaposed body 1B is formed by binding with the PP band 2a.

On the other hand, as shown in FIG. 4, four girder members 41 arranged at set intervals, and five girder members fixed to the upper and lower surfaces of these girder members 41 at set intervals, respectively.
On the upper surface of the pallet 4 having a length of 1040 mm, a width of 690 mm and a height of 87 mm formed by the two plate members 42 and the three plate members 43, a length of 1000
Lay the cushioning material 3 mm × 600 mm × 7 mm thick,
The juxtaposed body 1 is placed thereon by a handling device (not shown).
B, the cushioning material 3 is again placed on the upper surface of the juxtaposed body 1B.
(See FIG. 5).

Next, the juxtaposed body 1B is again placed on the upper surface of the cushioning material 3.
Are stacked to form a stacked body 1C composed of two vertically arranged juxtaposed bodies 1B, 1B (see FIG. 6). Then, when the stack 1C is formed, the air cushion sheet 5 having a length of 1400 mm × 1200 mm × 4 mm in thickness is placed on the upper surface of the stack 1C, and the upper end of the upper surface of the stack 1C and the four peripheral sides are disposed. (Approx. 200-300mm from the corner on the top)
(See FIG. 7), and stretchable and sticky stretch film 6 having a width of 500 mm × a thickness of 25 μm is placed on the four sides of the stack 1C including the pallet 4 from below by a film packaging machine (not shown). To form a package 1D (see FIG. 8).

The winding of the stretch film 6
The upper end is about 100m inside the corner of the upper surface of the stack 1C.
Repeat until the position reaches m. Thereafter, a length of 1100 mm formed by a polyethylene laminated sheet
A heat insulating cover 7 having a size of 800 mm and a height of 1400 mm is placed on the package 1D to cover the upper surface and the four surrounding sides of the package 1D.

[0022] As a result, since packing is performed by sheet hanging and film winding, packing can be automatically performed. At this time, by covering the heat insulating cover 7, it is possible to prevent rainwater or the like from entering the package 1D, and to suppress a rise in the internal temperature of the package 1D.
Evaporation of moisture in the roof tile 1 due to an increase in the internal temperature of D and dew condensation due to a temperature change can be prevented, thereby preventing the occurrence of efflorescence.

On the other hand, FIG. 9 shows a second embodiment of the package of the cement-based plate material of the present invention.
E covers the upper surface of the stack 1C of the roof tile 1 and the upper ends of the four surrounding sides with the sheet 5, and winds the surrounding four sides of the stack 1C including the pallet 4 with the film 6 except for the upper end. It is formed by turning. For this reason, the upper ends of a pair of opposing side surfaces of the stacked body 1C are exposed to form a vent 1e (hatched portion in FIG. 9). In this case, the ratio of the area of the vent 1e to the area of the four peripheral sides of the stack 1C is preferably about 0.5 to 20%.

In the second embodiment, as in the first embodiment, the pallet 4 and the lower juxtaposed body 1B have the same size and the same cushioning material 3 on the lower juxtaposed body 1B.
And an air cushion sheet 5 and a stretch film 6 of the same material are used.

However, the stretch film 6 is
C at its upper end (approximately 100m from the top corner of the stack 1C)
m), the air cushion sheet 5 has a length of 64, which is the vertical dimension of the tile 1, so that the upper ends of a pair of opposing side surfaces of the stack 1C can be exposed.
700mm width x 14 length slightly larger than 0mm
The one having a size of 00 mm is used. For this reason, as shown in FIG. 10, when the air cushion sheet 5 is placed on the upper surface of the stack 1C, a pair of opposing side surfaces along the longitudinal edges of the four side surfaces around the stack 1C. Is set so that the upper end is slightly covered.

As a result, in the case of the second embodiment, cracks and the like of the roof tile 1 can be reliably prevented during transportation or storage, and the steam generated from the roof tile 1 is evacuated by the vent 1e of the package 1E. Can be released to the outside, and the humidity inside the package 1E can be reduced to prevent the occurrence of dew condensation.

Further, since packing is performed by sheet hanging and winding of a film, the packing can be automatically performed.

FIG. 11 shows a third embodiment of a package of cement-based plate material according to the present invention. This embodiment covers the top surface and the four surrounding side surfaces of the above-described package 1E. The heat insulating cover 7 is covered.

Also in this embodiment, the occurrence of cracks in the roof tiles 1 during transportation or storage can be reliably prevented, and the heat insulating cover 7 prevents the infiltration of rainwater and the like, while the internal temperature of the package 1E varies. Can be suppressed. For this reason, it is possible to prevent the moisture inside the roof tile 1 from evaporating due to an increase in the internal temperature of the package 1 </ b> E, and to prevent the water vapor from falling below the dew point temperature to form dew condensation. It is possible to prevent the generation of efflorescence due to the elution of the alkali component due to the adhesion of sapphire. In addition, the steam generated from the roof tile 1 is transferred to the package 1E.
Can be released to the outside through the vent 1e of
It is possible to prevent the occurrence of dew condensation by lowering the humidity inside the package 1E.

By the way, in the above-described embodiment,
Although the flat cushioning material 3 was used, as shown in FIG.
It is also possible to use a cushioning material 3A having two rows of openings 3a formed in the longitudinal direction. In this case, the opening ratio of the opening 3a to the buffer 3A is preferably about 5 to 50%.
When such a cushioning material 3A is employed, it is possible to secure the air permeability between the inside and outside of the packages 1D and 1E through the pallet 4. For example, if the package 1E shown in FIG. 9 employs the cushioning material 3A in the fourth embodiment, in the fourth embodiment, outside air is guided through the pallet 4 into the package 1E, and the cushioning material is used. Ventilation between the upper and lower juxtaposed bodies 1B, 1B can be ensured through the opening 3a of 3A, and the air can be discharged through the vent 1e. Therefore, the water vapor from the roof tile 1 can be reliably prevented from staying inside the package 1E.

To confirm the effects of these embodiments,
The package 1D shown in FIG. 8 without covering the heat insulating cover 7
As a comparative example, for each embodiment and the comparative example described above, the presence or absence of air permeability and heat insulation, the temperature difference between the top and bottom inside the package, the humidity difference between the top and bottom inside the package, the presence or absence of condensation, the infiltration of rainwater The presence and absence of efflorescence during storage outdoors were measured and observed. Table 1 shows the results.

[0032]

[Table 1]

According to the measurement results, in each of the embodiments, the generation of the surface dirt on the roof tile 1 due to the efflorescence is not recognized or partially generated for three months in outdoor storage. , Outdoor storage 1
In the first month, the surface was stained by efflorescence in the upper stage, and in the third month of outdoor storage, the stain was caused in the upper and lower stages by the efflorescence.

In the above-mentioned embodiment, the tile is described as a cement-based plate material. However, the present invention is not limited to the tile, but may be applied to packing of other cement-based plate materials, for example, building materials such as wall materials. Can be.

In addition, the case where the roof tiles 1 are stacked via the styrofoam cushioning material 3 has been described as an example. However, when a cement-based plate material such as a tile whose end face is coated is directly mounted on the styrofoam cushioning material 3, There is a risk that the part will come off. In such a case, a cushioning material 3 prepared by laminating a polypropylene film on at least one surface of a polystyrene foam is prepared, and a cement-based plate material is loaded so that the painted surface is in contact with the polypropylene film laminated surface, or the cushioning material 3 is provided. Laying can prevent the paint from peeling off.

[0036]

As described above, according to the package of the cement-based plate material of the present invention, generation of efflorescence can be prevented for a long time.

Further, according to the method for packing a cement-based plate material of the present invention, the cement-based plate material can be automatically packed while preventing the breakage of the cement-based plate material and the occurrence of efflorescence.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a package of a cement-based plate material of the present invention.

FIG. 2 is a perspective view showing a binding body of a tile.

FIG. 3 is a perspective view showing a juxtaposed body of tiles.

FIG. 4 is an explanatory diagram showing a packing step of the first embodiment of the cement-based plate material package of the present invention.

FIG. 5 is an explanatory view showing a packing step of the first embodiment of the cement-based plate material package of the present invention.

FIG. 6 is an explanatory view showing a packing step of the first embodiment of the cement-based plate material package of the present invention.

FIG. 7 is an explanatory view showing a packing step of the first embodiment of the cement-based plate material package of the present invention.

FIG. 8 is an explanatory diagram showing a packing step of the first embodiment of the cement-based plate material package of the present invention.

FIG. 9 is a perspective view showing a second embodiment of the package of the cement-based plate material of the present invention.

FIG. 10 is an explanatory view showing a packing step of the second embodiment of the packing body of the cement-based plate material of the present invention.

FIG. 11 is a perspective view showing a third embodiment of the cement-based board material package of the present invention.

FIG. 12 is a perspective view showing a modification of a cushioning material used for a cement-based plate material package of the present invention together with a pallet.

FIG. 13 is an explanatory view showing a packing step of a conventional packing body of a cement-based plate material.

FIG. 14 is an explanatory view showing a packing step of a conventional packing body of a cement-based plate material.

FIG. 15 is an explanatory view showing a packing step of a conventional packing body of a cement-based plate material.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 roof tile 1A binding body 1B juxtaposed body 1C stacking body 1D, 1E packing body 1e vent port 2, 2a PP band 3, 3A buffer material 3a opening 4 pallet 41 beam member 42 plate material 5 sheet (air cushion sheet) 6 film ( Stretch film) 7 Insulation cover

Claims (9)

[Claims] A stacked body is formed by arranging a predetermined number of bundles of cement-based plate materials in parallel and stacking the bundled juxtaposed bodies on a pallet in two stages, one above the other. The upper end of the package is covered with a sheet, and the four peripheral sides and the upper peripheral edge of the stack are wound with a film to form a package, and the upper surface and the four peripheral sides of the package are covered with a heat insulating cover. A package of cement-based plate material. 2. A stacked body is formed by arranging a predetermined number of bundles of cement-based plate materials in parallel and stacking the bundled juxtaposed bodies on a pallet in two upper and lower stages, and the upper surface and four peripheral sides of the stack body The upper end of the stack is covered with a sheet, and the upper ends of a pair of opposing side surfaces of the stack are exposed,
A package of a cement-based plate material, wherein four sides around a stacked body are wound with a film except for an upper end thereof. 3. A stacked body is formed by arranging a predetermined number of bundles of cement-based plate members in parallel and stacking the bundled juxtaposed bodies on a pallet in two stages, upper and lower, and an upper surface and four peripheral side surfaces of the stack. The upper end of the stack is covered with a sheet, and the upper ends of a pair of opposing side surfaces of the stack are exposed,
A cement characterized in that a package is formed by winding the four peripheral sides of the stack except for the upper end portion thereof with a film, and furthermore, the top surface and the four peripheral sides of the package are covered with a heat insulating cover. Package of system board material. 4. The package according to claim 1, wherein a cushioning material is laid on an upper surface of the pallet and an upper surface of the lower juxtaposed body. 5. The package according to claim 4, wherein the cushioning material has one or more rows of openings formed in the longitudinal direction. 6. A bundle formed by bundling a predetermined number of cement-based plate members is arranged in a predetermined number in parallel and bound to form a juxtaposed body, and the juxtaposed bodies are sequentially stacked on a pallet via a cushioning material. To form a stacked body composed of upper and lower side-by-side juxtaposed bodies, and then place a sheet so as to cover the upper surface of the stacked body and the upper end of the four surrounding peripheral sides. A method for packing a cement-based plate material, comprising: wrapping a film around a peripheral portion to form a package, and further covering a heat insulating cover so as to cover an upper surface and four peripheral side surfaces of the package. 7. A set number of cement-based plate members are bundled to form a bundle, and the bundle is formed in parallel to form a juxtaposed body. The juxtaposed bodies are sequentially stacked on a pallet via a cushioning material. To form a stacked body consisting of two vertically arranged juxtaposed bodies, and then place a sheet so as to cover the upper surface of the stacked body and the upper end of the four surrounding sides, and a pair of opposing side surfaces of the stacked body. So that the upper end of
A method for packing a cement-based plate material, comprising: wrapping a film around four sides around a stack except for an upper end thereof. 8. A bundle formed by bundling a predetermined number of cement-based plate members is arranged in a predetermined number in parallel and bound to form a juxtaposed body, and the juxtaposed bodies are sequentially stacked on a pallet via a cushioning material. To form a stacked body consisting of two vertically arranged juxtaposed bodies, and then place a sheet so as to cover the upper surface of the stacked body and the upper end of the four surrounding sides, and a pair of opposing side surfaces of the stacked body. So that the upper end of
A film is wrapped around the four sides of the stack except for the upper end thereof to form a package, and further, a heat-insulating cover is provided so as to cover the top surface and the four sides of the periphery of the cement-based plate material. Packing method. 9. After arranging and tying a set number of bundles formed by bundling a set number of cement-based plate members in parallel and forming a juxtaposed body, the juxtaposed bodies are aligned in one or more rows in the longitudinal direction. By stacking sequentially on the pallet via the cushioning material formed with the openings of the rows, a stack consisting of two upper and lower juxtaposed bodies is formed, and then the upper surface of the stack and the upper end of the four surrounding sides are covered. Place the sheet, and
A method of packing a cement-based plate material, comprising: wrapping a film around four sides of a stack except for an upper end so that upper ends of a pair of opposing side surfaces of the stack are exposed.