JPH08175581A - Packing method and container for composite insulator - Google Patents

Abstract

PURPOSE: To meet composite insulators with various sizes, which are light and inexpensive, by folding one-sided cardboard so as to form a polygonal columnar shape so that the liners are positioned at the external face along the ruled lines formed so as to cross at right angles against the stage heaves or stepped cores. CONSTITUTION: A roll of one-sided cardboard 7 impregnated with a resin and hardened is provided with stepped cores 9 stuck on the one-sided cardboard at the one-sided face of liners 8. In this way, a plurality of stage peaks 10 are stretched parallelly to the axial line of the roll. A plurality of ruled lines 11 parallel to the one-sided cardboard 7 are formed in the crossing direction at right angles against the stage peaks 10 and further, at such a distance that the external edge of the umbrella formed at the periphery of the core member of the composite insulators inscribes on the internal side wall of the polygonal column, when the cardboard 7 is folded to shape a polygonal column along the ruled lines 11. The composite insulators are placed on the stepped cores 9 so as to cross at right angles against the stage peaks 10. The cardboard 7 is folded so as to get in contact with the core 9 at the umbrella of insulators to pack the insulators.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging container for a composite insulator and a packaging method for the composite insulator.

[0002]

2. Description of the Related Art Conventionally, porcelain insulators have been usually used, but composite insulators that do not use porcelain have been used for various purposes in response to the recent demand for weight reduction. In such a composite insulator, as shown in FIG. 1, a large number of rubber caps 2 are attached to the outer circumference of an FRP rod 1, and metal mounting brackets 3 and 4 are attached to both ends of the rod 1. It is a thing. Composite insulators generally have a total length of 2-4 m and a weight of 15-
It weighs about 20 kg and is extremely flexible.

Conventionally, when shipping a composite insulator from an insulator manufacturer, in order to prevent the composite insulator from bending and prevent the surface from being scratched, it is packed in a wooden box like a normal porcelain insulator. It was However, there is a problem that the wooden box is high in material cost and heavy in itself, and a different wooden box must be prepared for each size of the composite insulator. For this reason, as shown in FIG.
A packing method is also adopted in which the product is stored inside and fixed with a cap 6. However, even in this case, there still remains a problem that different paper cylinders and caps must be prepared for each size of the composite insulator, and further, as shown in FIG. 7, it is necessary to insert the composite insulator from one end of the paper cylinder 5. Therefore, there is a problem that a large work space is required.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned conventional problems, is low in material cost, is lightweight, is compatible with composite insulators of various sizes, and does not require a wide working space. An object is to provide a packaging container for insulators. Another object of the present invention is to provide a packing method for a composite insulator using such a packing container for a composite insulator.

[0005]

Means for Solving the Problems A packing container for a composite insulator of the present invention made to solve the above problems is formed by a single-sided corrugated cardboard consisting of a liner and a stepped core joined to one side thereof, The corrugated cardboard is bent in a polygonal column shape so that the liner is on the outside along a ruled line formed so as to be orthogonal to the stepped core of the stepped core. When it is bent into a polygonal column, the outer edge of the cap portion formed around the core member of the composite insulator is inscribed in the inner side wall of the polygonal column or is formed so as to be located in the radial inner side of the inner side wall. Has been done.

According to the packaging container for a composite insulator of the present invention,
When the corrugated cardboard is bent in a polygonal column shape along a single-faced corrugated cardboard that is orthogonal to the stepped core corrugations, the outer edge of the cap portion formed around the core material of the composite insulator is inside the polygonal column inner wall. By forming a ruled line that is in contact with or located near the inner side of the inner side wall in the radial direction, and fold the single-sided corrugated board along this ruled line to package the composite insulator,
It is possible to obtain a lightweight and inexpensive packaging container that can be applied to composite insulators of various sizes.

A method for packing a composite insulator according to the present invention comprises preparing a liner and a single-faced corrugated board consisting of a stepped core joined to one side of the liner, and arranging a plurality of ruled lines in parallel with each other and with a stepped core. When the corrugated cardboard is bent into a polygonal column along the ruled line substantially orthogonal to the mountain, the outer edge of the cap portion formed around the core member of the composite insulator is inscribed in the inner side wall of the polygonal column,
Or, form a ruled line near the inner side of the inner side wall in the radial direction, place a composite insulator on the inside surface of the packaging container for single-sided corrugated board, and place the single-sided corrugated board so that the liner is outside the packaging container. It is characterized in that it includes a step of bending into a polygonal column along a ruled line.

Since the composite insulator comes into contact with the soft core side of the container, there is no risk of scratches. In addition, since the composite insulator is packed in the container by folding the cardboard and wrapping it, a wide space is not required for the packing work.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Preferable examples of the packaging container for the composite insulator are given below. In addition, these suitable examples can be arbitrarily combined as new suitable examples as long as no contradiction occurs. (1) Reinforce the packing container for composite insulators by impregnating them with resin. This increases the strength of the container. (2) Make the packing container for the composite insulator into a square column shape. Thus, after packaging the composite insulator, a plurality of containers can be easily stacked on each other, which is convenient for storing and shipping the packaged composite insulator. (3) The step of the stepped core is extended so as to be orthogonal to the axis of the insulator to be packed. This increases the strength of the container. (4) At least the outermost wall should overlap with the corresponding inner side wall. This also increases the strength of the container. (5) Secure at least the outermost wall to the corresponding inner part of the container. This makes it possible to improve the strength of the container and prevent the container from losing its shape.

The following is a preferred example of the method for packing the composite insulator according to the present invention. In addition, these suitable examples can be arbitrarily combined as new suitable examples as long as no contradiction occurs. (1) When the corrugated board is bent into a polygonal column, side walls at both ends of the corrugated board are overlapped with each other on one side surface of the polygonal column. (2) The outermost wall of the folded corrugated board is fixed to the side wall at the other end of the corrugated board or the inner side wall facing the outermost wall.

[0011]

The present invention will be described below with reference to the embodiments of the accompanying drawings. It is of course possible for those skilled in the art to make various modifications and improvements within the scope of the present invention in consideration of the above objects and advantages.

FIG. 2 shows a roll-shaped single-faced cardboard 7. As is well known, a single-sided corrugated board is one in which a stepped core 9 is adhered to one side of a liner 8, and a plurality of stepped peaks 10 extend in parallel with the axis of the roll as shown in FIG.

The container of the present invention has a weight of 15 as described above.
The single-sided corrugated board used in the present invention preferably has a certain level of strength and rigidity, since it is used for packaging a very flexible composite insulator of -20 kg. Therefore, in this embodiment, the single-faced cardboard 7 impregnated with a resin and cured is used. Specifically, the one-sided corrugated board 7 is immersed in an organic solvent in which a polystyrene resin is dissolved for several hours, and then dried with hot air at a temperature of about 60 ° C. to be used.

When a plurality of ruled lines 11 substantially parallel to the single-faced cardboard 7 are bent in a direction orthogonal to the step mountain 10 and along the ruled lines into a polygonal columnar shape, a core member of the composite insulator is formed. The outer edge of the cap portion formed around is inscribed in the inner side wall of the polygonal column, or is formed at intervals such that it is located near the inner side of the inner side wall in the radial direction.

The ruled line may be formed in advance in the manufacturing process of the single-sided corrugated board according to the cap diameter of the composite insulator to be packed, or formed each time the corrugated board is cut into a size necessary for packing and used. You may. The number of ruled lines 11 is limited by the width of the single-sided corrugated board 7, but also depends on how many side walls overlap with the inner side walls when forming the container. In the embodiment shown in FIG. 2, five ruled lines 11 are formed.

According to the length of the composite insulator, as shown in FIG. 3, a single-sided corrugated board 7 ′ having a predetermined length is cut off (see FIG. 2).
See also). Since the single-faced corrugated board 7 is cut along a cutting line orthogonal to the roll direction, the length of cutting can be set arbitrarily. The cut single-faced cardboard 7'is spread on the floor so that the stepped core 9 is on the top, and the composite insulator is placed thereon so as to be orthogonal to the steps of the core. Then, as shown in FIG. 4 (a), the single-faced cardboard 7'is bent along the ruled line,
Wrap the composite insulator so that its cap portion contacts the stepped core.

As shown in FIG. 4 (a), in this embodiment, the container has a rectangular cross section and each side surface is composed of double corrugated cardboard side walls. The outermost wall of the cardboard, as shown in Figure 4 (b)
12 is fixed to the inner side wall using an adhesive tape A. In this embodiment, the legs 13-1, 13-2, 13 shown in FIG.
Form a lid 13 having -3 and 13-4. The lid 13 has an end face 13
-Leg 13-1 so that -0 is located in the container opening in Figure 4 (b).
Bend ~ 13-4 and insert into the container along the four sides of the container. The lid 13 may be secured to the end of the container using suitable adhesive means. As the material for the lid 13, the same material as that used for the packaging container for the composite insulator of the present invention can be used.
The packaging container for the composite insulator thus obtained is lightweight,
It is inexpensive and suitable for transporting composite insulators.

FIG. 5A shows a pair of spacer units 14-1,
14-2, which is a rod member 15 between adjacent cap portions 16 and 16 '.
A spacer 14 for supporting the is shown. As shown in FIG. 5 (b), the rod insulator 15 is supported by using an appropriate number of spacers 14 located between two adjacent cap portions, and the composite insulator is packed in a container to make the composite insulator more secure. And can be surely packed in the container. Such spacers can be formed of a suitable material such as foamed resin.

FIG. 6 shows a case where the composite insulator is packed 9
It shows a state in which individual containers are bundled and placed on a pallet 17 into which the arms of a forklift can be inserted for transportation. As can be seen from FIG. 6, when the container has a rectangular cross section, it is easy to stack and stack a plurality of containers one after another.

[0020]

As is apparent from the above description, the present invention has various effects as described below. (1) Material cost is low because single-sided corrugated board is used. (2) The container is lighter than a wooden box because it uses single-sided corrugated board. (3) Since the single-sided corrugated cardboard for forming each composite insulator packaging container is formed by simply cutting the creases according to the cap diameter and the total length of the composite insulator, it is compatible with various sizes of composite insulators. The formed container can be easily formed. (4) Since the composite insulator is supported on the soft core side of the single-sided corrugated board, there is no risk of damage to the composite insulator. (5) Deformation of the composite insulator is prevented by the action of the step ridge extending in the direction orthogonal to the ruled line. (6) It does not require a large working space like when inserting the composite insulator into the paper tube. (7) The packing container for composite insulators can be folded flat after use, which is convenient for returning to the insulator maker for reuse. (8) If reinforced single-faced corrugated board is used as the material of the container, it is possible to prevent the container from being deformed during the transportation of the insulator.

[Brief description of drawings]

FIG. 1 is a front view showing a composite insulator.

FIG. 2 is a perspective view showing a rolled single-faced cardboard.

FIG. 3 is a perspective view showing a single-faced cardboard cut to a desired length.

FIG. 4 (a) is a perspective view showing the structure of a composite insulator packaging container, and FIG. 4 (b) is a composite insulator packaging container in which each side wall is double and the outermost wall is adhered using an adhesive tape. FIG. 7 (c) is a perspective view showing a cap having legs for attaching to the end of the container.

FIG. 5A is a perspective view showing a spacer including a pair of spacer pieces for holding the core member of the composite insulator therebetween;
(b) is a side view showing a composite insulator in a state of being supported by a spacer and packed in a packing container.

FIG. 6 is a perspective view showing a state in which a plurality of packing containers in which the composite insulator is packed are bundled.

FIG. 7 is a perspective view showing a conventional method for packing a composite insulator using a paper tube.

[Explanation of symbols]

1 rod, 2 rubber caps, 3 mounting brackets, 4 mounting brackets, 5 paper tubes, 6 caps, 7 roll single-sided corrugated board, 7'single-sided corrugated board, 8 liner, 9 step center core, 10 step crests, 11 ruled lines , 12 outermost wall, 13 lid, 13-0
End face, 13-1 leg part, 13-2 leg part, 13-3 leg part, 13-4 leg part, 14 spacer, 14-1 spacer piece, 14-2 spacer piece, 15 rod, 16 cap section, 16 ' Kasabe, 17 pallets, A adhesive tape

Claims (9)

[Claims] 1. A packaging container for a composite insulator formed of a single-sided corrugated board, which comprises a liner and a stepped core joined to one side of the liner, so that the corrugated board is placed outside the container along a ruled line. A core member of a composite insulator, wherein the ruled line is orthogonal to the step of the stepped core and the corrugated cardboard is bent along the ruled line into a polygonal column shape. A packaging container for a composite insulator formed such that an outer edge of a cap portion formed around the inside of the polygonal column is inscribed in an inner side wall of the polygonal column or is positioned in the vicinity of a radially inner side of the inner side wall. 2. The packaging container for a composite insulator according to claim 1, which is reinforced by impregnating a resin. 3. The packing container for a composite insulator according to claim 1, which has a rectangular prism shape. 4. The packaging container for composite insulator according to claim 1, wherein the stepped core of the stepped core extends parallel to the axial direction of the insulator to be packed in the container. 5. The packaging container for composite insulator according to claim 1, wherein at least the outermost wall overlaps with the corresponding inner side wall. 6. The packaging container for a composite insulator according to claim 5, wherein the outermost wall is fixed to a corresponding inner portion. 7. (1) A step of preparing a single-sided corrugated board consisting of a liner and a stepped core joined to one side of the liner,
(2) A plurality of ruled lines are parallel to each other and substantially perpendicular to the stepped core corrugations, and when the corrugated cardboard is bent along the ruled lines into a polygonal column shape, the periphery of the core member of the composite insulator The step of forming the ruled line so that the outer edge of the cap portion formed on the inner side wall of the polygonal column is inscribed in the inner side wall or is located in the vicinity of the inner side in the radial direction of the inner side wall, (3) The inside of the single-sided corrugated cardboard container Placing the composite insulator on the side of the
(4) A method for packaging a composite insulator, which comprises a step of bending the single-sided corrugated board into a polygonal column along the ruled line so that the liner is located outside the packaging container. 8. The method according to claim 7, wherein the corrugated board is bent into a polygonal column shape so that side walls corresponding to both ends of the corrugated board overlap each other on one side surface of the polygonal column. 9. The method of packing a composite insulator according to claim 7, wherein the outermost wall of the folded corrugated cardboard is adhered to the side wall at the other end of the corrugated cardboard or the inner side wall facing the outermost wall.