JP2008074566A - Packing body for water pipe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packing body for a water pipe capable of preventing damage of the water pipe when it is drawn out. <P>SOLUTION: The packing body 2 rotatably stores and protects a wound bundle 1a of the water pipe 1 wound in a roll. The packing body 2 has a packing body 3 and a connection cylindrical body 4. The packing body 3 comprises a corrugated fiberboard box and has side walls 3a opposing to each side face 1c of the wound bundle 1a. A drawing-out part 2a for drawing out the water pipe 1 is provided in the packing body 3. The connection cylindrical body 4 penetrates through an axial space 1b of the wound bundle 1a stored in the packing body 3 and connects the side walls 3a, 3a with each other. The connection cylindrical body 4 has an expansion/contraction part 4a of which elongation quantity is restricted so as to allow the side walls 3a, 3a to expand and deform each other up to a predetermined position and restrict the expansion and deformation exceeding the predetermined position. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a packing body for water pipes that packs water pipes.

  Conventionally, a packaging body of a water pipe that can accommodate a wound bundle of water pipes wound in a circular shape in a cardboard box and draw out the water pipe by rotating the winding bundle has been considered. (For example, refer to Patent Document 1). As shown in FIG. 10, a shaft member 14 for rotating the wound bundle 11 a of the water pipe 11 together with the bobbin 13 is passed to the side walls 15 a and 15 a of the cardboard box 15 in the package 12. Here, the shaft member 14 includes two divided bodies 14b and 14b fixed to the side walls 15a and 15a. The divided bodies 14b and 14b are fitted so as to be relatively movable in the axial direction. Thus, the shaft member 14 can extend in the axial direction, and the side walls 15a and 15a are allowed to expand. Then, by allowing the side walls 15a and 15a to expand, the contact between the side wall 15a and the bobbin 13 when the water pipe 11 is pulled out can be reduced.

JP 2005-53678 A

  By the way, in the said conventional package 12, although the shaft member 14 was expandable in the axial direction, there was no restriction | limiting in the amount of expansion | extension. For this reason, the amount of expansion of the side walls 15a, 15a is not limited, and the cardboard box 15 may be broken when the water pipe 11 is pulled out.

  Further, if the load applied when pulling out the water conduit 1 is not uniform, the divided bodies 14b and 14b constituting the shaft member 14 are inclined to bite each other and smoothly move relative to each other in the axial direction. Became difficult. For this reason, the load received by the shaft member 14 when the water pipe 11 is pulled out cannot be released, and the shaft member 14 may be broken.

  The present invention has been made to solve the above-described conventional drawbacks, and an object of the present invention is to provide a water pipe packaging body that can prevent breakage when the water pipe is pulled out. There is.

In order to achieve the above object, a water pipe packaging body according to the present invention has the following configuration. That is,
The water pipe packaging body according to the first aspect of the present invention rotatably accommodates a winding bundle of water pipes wound around the shaft space so as to form an axial space in the center. The winding bundle is rotated as the water pipe is pulled out from the drawer part while the water pipe is pulled out from the end part. Here, the packing body includes a packing body main body and a connecting cylinder. The package body has side walls opposed to the respective side surfaces of the wound bundle, accommodates the wound bundle therein, and is provided with the drawer portion. On the other hand, the connecting cylinder passes through the axial space of the wound bundle accommodated in the package body and connects the side walls to each other. The connecting cylinder has an expansion / contraction portion whose extension amount is limited so as to allow the deformation of the side walls to expand to a predetermined position and to restrict the expansion of the sidewall beyond the predetermined position. The part is formed so as to be locally expandable and contractable in the circumferential direction of the connecting cylinder.

  According to this package, when the water pipe is pulled out from the drawer portion, the pulling force causes the water pipe to enter inside from the outer peripheral side of the wound bundle. The side walls of the body are pushed and try to spread each other. Here, the connection cylinder which connects a side wall mutually has an expansion-contraction part, and when this expansion-contraction part expands, the side wall of a packing body main body can spread mutually. Therefore, it is possible to relieve the force received by the side wall due to the lateral expansion of the wound bundle, and the water pipe can be pulled out smoothly. In addition, at this time, since the expansion / contraction part of the connecting cylinder is locally expandable / contractable in the circumferential direction of the connection cylinder, this expansion / contraction can be achieved even when the load applied to the water pipe is not uniform. The part can easily follow. Thus, a connecting pipe can draw out a water pipe smoothly because it has an elastic part which can expand and contract locally. For this reason, when pulling out the water pipe, the force to pull out the water pipe is reduced, and the package can be prevented from being broken by the pulling force. Moreover, since the expansion amount of the stretchable part is limited, the side wall does not spread beyond a predetermined position. For this reason, when the water pipe is pulled out, it is possible to prevent the package from being broken due to the side wall spreading beyond a predetermined position.

  Further, a water pipe packaging body according to a second aspect of the present invention is the packaging body according to the first aspect, further comprising a bobbin that is accommodated in the packaging body and supports the wound bundle, and the bobbin is hollow. The connecting cylinder is disposed through the shaft hole.

  Moreover, the packaging body of the water pipe which concerns on invention of Claim 3 is a cylindrical body of Claim 2, It is fixed to each of the said side wall, Two cylinders used as the axis | shaft which the said bobbin rotates. The connecting cylinder passes through the cylinder and is disposed through the hollow shaft hole of the bobbin.

  Moreover, the packaging body of the water pipe which concerns on invention of Claim 4 is a packaging body of any one of Claim 1 thru | or 3, The said expansion-contraction part is V inside the said connection cylinder, It is folded back into a letter shape. Thereby, even if it can contract until the base end side which becomes the open side of the V-shape contacts, the expansion / contraction part does not contract any further. Therefore, when a force is applied so that the side walls approach, such as when the packages are stacked side by side, it is possible to prevent the side walls from approaching more than necessary and the package from being crushed.

  Moreover, the packaging body of the water pipe which concerns on invention of Claim 5 is a packaging body of any one of Claim 1 thru | or 4. WHEREIN: The cross-sectional shape orthogonal to the axial direction of the said connection cylinder is shown. , Formed into a polygonal shape.

  Moreover, the packaging body of the water pipe which concerns on invention of Claim 6 is a packaging body of Claim 5, The said expansion-contraction part is formed in all the sides of the polygonal shape in the said connection cylinder.

  The packaging body of the water pipe according to the invention described in claim 7 is the packaging body according to any one of claims 1 to 6, wherein the expansion and contraction portion is a central position in the axial direction of the connecting cylinder. Is provided.

  Moreover, the packaging body of the water pipe which concerns on invention of Claim 8 is a packing body of any one of Claim 1 thru | or 7. WHEREIN: The said expansion-contraction part is a reference | standard with which the said side wall will be in a parallel state. It is formed so as not to shrink from the stretchable part in the state. Thereby, when a force acts so that a side wall approaches, such as when this packing body is piled up sideways, an expansion-contraction part does not shrink. Therefore, even in such a case, it is possible to reliably prevent the packing body from being crushed by approaching the side wall.

  In addition, the packaging body of the water pipe according to the invention of claim 9 is the packaging body according to any one of claims 1 to 8, wherein the connecting cylinder has a hollow portion in the cylinder. The arm is formed so as to penetrate the size to be inserted. Thereby, when carrying this package, a person can insert an arm in the hollow part of a connection cylinder, can carry a package with a shoulder, and can carry this package easily.

  According to the water pipe packaging body according to the present invention, when the water pipe is pulled out by providing the connecting cylinder with a stretchable portion that can be locally expanded and contracted, and limiting the amount of extension of the stretchable portion. Further, it is possible to prevent the package from being broken due to the force of pulling out the water pipe, and the package from being broken due to the side wall spreading beyond a predetermined position.

  BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the best mode for carrying out a water pipe packaging body according to the present invention will be described with reference to the drawings.

  1 to 8 show an embodiment of the present invention. In the figure, reference numeral 1 denotes a water pipe such as a water supply pipe as a flexible pipe material made of a synthetic resin material such as cross-linked polyethylene or polybutene. 1a is a winding bundle of the water pipe 1, and is wound around the axial space 1b so as to form an axial space 1b in the center. Reference numeral 2 denotes a packing body that rotatably accommodates and protects the wound bundle 1a, and includes a drawing portion 2a that draws out the water pipe 1 from its end, and the water pipe 1 is drawn out from the drawing portion 2a. As a result, the wound bundle 1a rotates.

  Here, the package body 2 has side walls 3a and 3a facing the side surfaces 1c and 1c of the wound bundle 1a, accommodates the wound bundle 1a therein, and is provided with the lead-out portion 2a. 3 and a connecting cylinder 4 that passes through the axial space 1b of the wound bundle 1a accommodated in the package body 3 and connects the side walls 3a and 3a of the package body 3 to each other. The connecting cylinder 4 is provided with a stretchable portion 4a having a limited amount of extension so that the side walls 3a, 3a of the packing body 3 can be deformed to expand to a predetermined position and restrict the deformation spreading beyond the predetermined position. Have. And the expansion-contraction part 4a is formed so that it can expand-contract locally in the circumferential direction of the connection cylinder 4. FIG.

  The package 2 includes a bobbin 5 that is accommodated in the package body 3 and supports the wound bundle 1a. Therefore, the connecting cylinder 4 is disposed through the hollow shaft hole 5 a of the bobbin 5. Further, the package 2 includes two cylindrical bodies 6 and 6 that are fixed to the side walls 3a and 3a, respectively, and serve as shafts on which the bobbin 5 rotates. Therefore, the connecting cylinder 4 passes through the cylinders 6 and 6 and is disposed through the hollow shaft hole 5 a of the bobbin 5.

  Specifically, the package body 3 is made of, for example, paper (specifically, made of corrugated cardboard) and is a rectangular hexahedron, that is, a rectangular hexahedron box (see FIG. 1). Therefore, as shown in FIGS. 1 and 4, the drawer portion 2 a is a peripheral wall 3 b facing the outer peripheral surface 1 d of the wound bundle 1 a in the packing body main body 3, and the packing body 2 is placed vertically ( When the water pipe 1 is pulled out in a state where the side wall 3a is vertical), it is provided on the upper wall 3c located at the top. The drawer 2a is provided with lids 2b and 2b for opening and closing the drawer 2a. Further, each of the side walls 3a and 3a of the package body 3 is provided with a through hole 3d near the center.

  The connecting cylinder 4 is made of, for example, paper (specifically, made of cardboard). The connecting cylinder body 4 (specifically, a connecting cylinder body 4d described later) has a polygonal shape (in the illustrated embodiment, a regular polygonal shape, specifically, a regular hexagonal shape). ) (See FIG. 5). Moreover, the said expansion-contraction part 4a is formed in the cylinder inner side (namely, the hollow part 4c side) of this connection cylinder 4 by folding in a V shape (refer FIG. 6). The stretchable part 4 a is provided at the axial center position of the connecting cylinder 4 and is formed on all sides of the polygonal shape of the connecting cylinder 4. And the expansion-contraction part 4a is provided independently for each side of a polygon by being divided | segmented by the notch 4b formed in the polygonal corner | angular part in the connection cylinder 4. As shown in FIG. Here, the extension amount of the stretchable part 4a is preferably equal to or greater than the outer diameter of the water pipe 1. That is, when the outer diameter of the water conduit 1 is 13 mm, the extension amount of the stretchable part 4a is preferably 13 mm or more. For example, while the length of the expansion / contraction part 4a of the reference (that is, the side walls 3a and 3a are parallel) is 20 mm, the length of the extended expansion / contraction part 4a is 40 mm. The amount of elongation is limited to 40 mm [extended length] −20 mm [standard length] = 20 mm.

  Further, the connecting cylinder 4 is formed so that the hollow portion 4c in the cylinder penetrates to a size into which a human arm is inserted. As for the size of the hollow portion 4c, for example, the distance between opposite sides is about 200 to 250 mm. But the magnitude | size of the hollow part 4c is not limited to this numerical value.

  By the way, as described above, the connecting cylinder body 4 has a connecting cylinder body 4d having a polygonal cross section (in the illustrated embodiment, a regular hexagonal shape) and having an expansion / contraction part 4a, and both end portions of the connecting cylinder body 4d. And 4e and 4e. The connecting cylinder main body 4d is a single cardboard and is bent into a polygonal shape (in the illustrated embodiment, a regular hexagonal shape). However, the connecting cylinder body 4d may be formed of, for example, two or more cardboards arranged in the circumferential direction. The eaves member 4e includes an eaves part 4f, and a first bent piece 4h of the eaves part 4f of the inner periphery 4g having a polygonal cross section (in the illustrated embodiment, a regular hexagonal shape) bent from each side. The second bent piece 4i is bent so as to be folded back from the first bent piece 4h. The flange 4f is fixed to the side wall 3a of the package body 3 by bonding or the like so as to cover the periphery of the through hole 3d from the front side, and the first and second bent pieces 4h and 4i are connected to the through hole 3d. To the inside of the package body 3. The connecting cylinder body 4d is inserted into a hole formed by the first bent pieces 4h and 4h, and is fixed to the first bent pieces 4h and 4h by adhesion or the like.

  The bobbin 5 is made of, for example, paper (specifically, made of cardboard). As shown in FIGS. 7 and 8, the bobbin 5 includes a bobbin main body 5b and a pair of side plates 5c and 5c sandwiching the bobbin main body 5b from both sides. The bobbin main body 5b supports the inner peripheral surface 1e of the wound bundle 1a, and the side plate 5c faces the side surface 1c of the wound bundle 1a, and a shaft hole 5d is formed at the center. It is dawned. The hollow shaft hole 5a is formed by the inner space of the bobbin body 5b and the shaft holes 5d and 5d of the side plates 5c and 5c. Specifically, the bobbin main body 5b is assembled in a dodecagonal shape in which two cardboards arranged in the circumferential direction are assembled so that the coupling pieces 5e and 5e are engaged with each other, and six long sides and six short sides are arranged. It is bent and formed. The bobbin main body 5b is provided with bent pieces 5f bent at right angles from the respective sides. The bobbin main body 5b is fixed to the side plates 5c and 5c by bonding or the like at the bent pieces 5f and 5f. . The side plate 5c is formed in a disc shape. The central shaft hole 5d of the side plate 5c has a hexagonal shape and is reinforced by the folded pieces 5g and 5g.

  The cylindrical body 6 is made of, for example, paper (specifically, made of cardboard), and includes a circular paper tube. As shown in FIGS. 2 and 3, the cylindrical body 6 is fitted on the outer side of the second bent pieces 4 i and 4 i of the flange member 4 e in the connecting cylindrical body 4, so that the side wall 3 a in the package body 3. It is fixed to the peripheral surface of the through hole 3d by adhesion or the like. And the shaft hole 5d of the said bobbin 5 fits in this cylinder 6, and this cylinder 6 becomes an axis | shaft with which the bobbin 5 rotates with the winding bundle 1a.

  Next, the effect of the packaging body 2 which consists of the above structure is demonstrated. According to this packing body 2, when the water conduit 1 is pulled out from the drawer portion 2a, the winding bundle 1a swells sideways by the pulling force so that the water conduit 1 tries to enter inside from the outer peripheral side of the wound bundle 1a. As a result, the side walls 3a and 3a of the package body 3 are pushed and spread toward each other. In the illustrated embodiment, the packing body 2 includes the bobbin 5 that supports the wound bundle 1a. Therefore, the side plates 5c and 5c of the bobbin 5 are pushed when the wound bundle 1a bulges horizontally. The side walls 5c and 5c spread, so that the side walls 3a and 3a of the packing body 3 are pushed to spread each other. Here, the connection cylinder 4 which connects the side walls 3a and 3a to each other has the expansion / contraction part 4a, and the side walls 3a and 3a of the packing body 3 can be expanded to each other by extension of the expansion / contraction part 4a. it can. Therefore, the force received by the side wall 3a due to the winding bundle 1a bulging sideways can be reduced, and the water conduit 1 can be pulled out smoothly. In addition, at this time, since the expansion / contraction part 4a of the connecting cylinder 4 is locally expandable / contractable in the circumferential direction of the connecting cylinder 4, the load applied when the water pipe 1 is pulled out is not uniform. However, the stretchable part 4a can easily follow. Thus, the connecting pipe 4 has the stretchable part 4a that can be stretched locally, so that the water conduit 1 can be drawn out smoothly. For this reason, when the water pipe 1 is pulled out, the force to pull out the water pipe 1 is reduced, and the package 2 can be prevented from being broken by the pulling force. Further, since the stretchable portion 4a is limited in the amount of elongation, the side walls 3a and 3a do not spread beyond a predetermined position. For this reason, when pulling out the water pipe 1, it is possible to prevent the package 2 from being broken due to the side walls 3a, 3a spreading beyond a predetermined position. As described above, according to the packing body 2, the connecting pipe 4 is provided with the expansion / contraction part 4 a that can be locally expanded and contracted, and the extension amount of the expansion / contraction part 4 a is limited, thereby pulling out the water pipe 1. In this case, it is possible to prevent the package 2 from being broken due to the force for pulling out the water pipe 1 and the package 2 from being broken due to the side walls 3a and 3a spreading beyond a predetermined position.

  Moreover, since the expansion-contraction part 4a is folded and formed in V shape, even if it can contract until the base end side used as the open side of the V-shape contacts, it does not contract any more. Therefore, when the packaging body 2 is placed sideways (that is, when the side walls 3a are laid down), the side walls 3a, 3a approach more than necessary when a force is applied so that the side walls 3a, 3a approach each other. Thus, the package 2 can be prevented from being crushed.

  Further, the connecting cylinder 4 is formed so that the hollow portion 4c in the cylinder penetrates to a size into which a human arm is inserted. For this reason, when carrying this packing body 2, a person can insert an arm into the hollow part 4c of the connection cylinder 4, and can carry the packing body 2 with a shoulder, and carry this packing body 2 easily. Can do. In addition, the connecting cylinder 4 is formed in a polygonal shape, and when the arm is inserted into the hollow portion 4c of the connecting cylinder 4 to carry the packing body 2, the packing body 2 is difficult to turn. For this reason, the package 2 can be carried stably, and the package 2 can be carried more easily.

  In addition, this invention is not necessarily limited to embodiment mentioned above, A various other change is possible. For example, the package 2 includes a cylinder 6 that serves as a shaft around which the bobbin 5 rotates. However, the cylinder 6 may not be provided. In this case, the bobbin 5 rotates around the connecting cylinder 4. Furthermore, although the bobbin 5 supports the wound bundle 1a and the wound bundle 1a rotates with the bobbin 5, as for the package 2, the bobbin 5 does not need to be provided. That is, the winding bundle 1a may rotate independently.

  Further, in the connecting cylinder 4, the expansion / contraction part 4 a is folded back to the inside of the connecting cylinder 4 (that is, the hollow part 4 c side), but may be folded back to the outside of the connecting cylinder 4. Moreover, although this expansion-contraction part 4a is return | folded and formed in V shape, you may be formed in multiple return | folds, such as W shape.

  Moreover, the expansion-contraction part 4a may be formed so that it may not shrink from the expansion-contraction part 4a in a reference | standard state from which the side walls 3a and 3a will be in a parallel state. Specifically, for example, as shown in FIG. 9, the stretchable part 4 a may be formed by being folded back into a triangular shape with the base end side closed. Thereby, when this packing body 2 is stacked sideways (that is, in a state where the side wall 3a is laid) or the like, when the force acts so that the side walls 3a, 3a approach, the expansion / contraction part 4a is not shrunk. Absent. Therefore, even in such a case, it is possible to reliably prevent the packing body 2 from being crushed due to the approach of the side walls 3a and 3a.

  Moreover, although the expansion-contraction part 4a is provided in the center position of the axial direction in the connection cylinder 4, you may be provided in the position remove | deviated from the center. Moreover, the expansion / contraction part 4a may not be formed in all the polygonal sides in the connection cylinder 4, but may be formed in some sides, such as every other.

  Further, the connecting cylinder 4 is formed in a polygonal shape (regular hexagonal shape in the illustrated embodiment) in a cross-sectional shape orthogonal to the axial direction, but may be formed in a circular shape or the like.

  In addition, the connecting cylinder 4 is formed so that the hollow portion 4c in the cylinder penetrates to the size into which a human arm is inserted, but the size may be smaller or smaller. It does not have to be.

  Further, the side walls 3a and 3a of the packing body 3 are not limited to the case where the force for pulling out the water pipe 1 acts on the packing body 3 but the weight of the wound bundle 1a is applied to the packing body 3. The side walls 3a and 3a may be spread by acting.

  Further, the packing body 2 may be used in a vertically placed state (a state in which the side wall 3a of the packing body main body 3 is vertical) when pulling out the water pipe 1, but in a horizontally placed state (the packing body main body 3). The side wall 3a may be in a lying state).

It is a perspective view when a lid of a packing object is made into a closed state of one embodiment of this invention. Similarly, it is sectional drawing by the AA in FIG. Similarly, it is an expanded sectional view by the BB line in FIG. Similarly, it is a perspective view when the lid is opened and the water pipe is pulled out. Similarly, it is a longitudinal cross-sectional view of a connection cylinder. Similarly, it is an expanded sectional view by CC line in FIG. Similarly, it is a longitudinal cross-sectional view of a bobbin. Similarly, it is an expanded sectional view by the DD line in FIG. FIG. 7 is a view corresponding to FIG. 6 of another embodiment of the present invention. It is sectional drawing which shows the conventional package.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water flow pipe 1a Winding bundle 1b Axial space 1c Side surface 2 Packing body 2a Extraction part 3 Packing body main body 3a Side wall 4 Connection cylinder 4a Expansion-contraction part 4c Hollow part 5 Bobbin 5a Hollow shaft hole 6 Cylindrical body

Claims (9)

A winding bundle of water pipes wound around the shaft space so as to form an axial space in the center is rotatably accommodated and protected, and a drawer portion for drawing out the water pipe from its end is provided. A package body in which the winding bundle rotates as the water pipe is pulled out from the pull-out portion;
A package body having a side wall facing each side surface of the wound bundle and accommodating the wound bundle therein and provided with the leading portion;
A connecting cylinder that passes through the axial space of the wound bundle housed in the package body and connects the side walls to each other;
The connecting cylinder has an expansion / contraction part whose extension amount is limited so as to allow the deformation of the side walls to expand to a predetermined position and restrict the deformation of the side wall beyond the predetermined position. The water pipe packaging body is formed so as to be locally expandable and contractable in the circumferential direction of the connecting cylindrical body. A bobbin that is housed in the package body and supports the wound bundle;
The packaging body for a water pipe according to claim 1, wherein the connecting cylinder is disposed through the hollow shaft hole of the bobbin. It is fixed to each of the side walls, and includes two cylinders that serve as axes on which the bobbin rotates,
The said connecting cylinder passes through the said cylinder, and is penetrated and arrange | positioned in the hollow shaft hole of the said bobbin, The packaging body of the water pipe of Claim 2 characterized by the above-mentioned.   4. The water pipe packaging body according to claim 1, wherein the expansion and contraction portion is formed to be folded in a V shape inside a cylinder of the connection cylinder. 5.   5. The water pipe packaging body according to claim 1, wherein a cross-sectional shape perpendicular to the axial direction of the connecting cylinder is formed in a polygonal shape. 6.   The said expansion-contraction part is formed in all the sides of the polygonal shape in the said connection cylinder, The packaging body of the water pipe of Claim 5 characterized by the above-mentioned.   The said expansion-contraction part is provided in the axial center position in the said connection cylinder, The packing body of the water pipe of any one of Claim 1 thru | or 6 characterized by the above-mentioned.   The said expansion-contraction part is formed so that it may not shrink | contract from the expansion-contraction part in a reference | standard state in which the said side wall will be in a parallel state. Packing body of water pipe.   9. The connection cylinder according to claim 1, wherein a hollow portion in the cylinder is formed so as to penetrate a size into which a human arm is inserted. Packing body of water pipe.

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