JP2005163875A - Pipe pillow for piping - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pipe pillow for piping capable of preventing the buckling of a reinforcement rib even when the weight of the buried soil and the fluid in a pipe material for piping is intensively acted on the reinforcement rib between a pipe material supporting part and a pipe pillow main body for piping. <P>SOLUTION: This pipe pillow for piping is constituted by mounting the plurality of reinforcement ribs 15 between upper and lower long sides of the pipe pillow main body 11 for piping having the rectangular frame shape, for connecting upper and lower long sides in a state that triangles are alternately arranged in an inverted state in the lateral direction orthogonal to the laying direction of the pipe material M for piping. The reinforcement ribs are respectively intersected to each other at an approximately intermediate position in the vertical direction in a state that the triangles inverted to each other are overlapped. Further the reinforcement ribs positioned between the pipe material supporting part 12 and an opposite face of the pipe pillow main body for piping opposite to the pipe material supporting part 12, are connected in a state of being inclined approximately at an angle of 60° and at an angle of 120° in the lateral direction with respect to the opposite face of the pipe pillar main body for piping, so that approximately regular triangles are alternately inversely continued between the pipe material supporting part and the opposite face of the pipe pillow main body for piping. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a pipe pillow for supporting a pipe for piping.

Conventionally, pipe pipe pillows that support pipe tubing are used in pairs, and as shown in FIG. 5, when the pipe pillow a is used on the lower side, a rectangular frame shape is used. On the upper surface (lower surface when used on the upper side) of the formed pipe pillow body a1 for piping, a pipe support portion a2 having a substantially semicircular cross section for supporting a substantially semicircular portion of the pipe material for piping m is recessed. The pipe support part a2 and the lower surface of the pipe pillow body facing the pipe are connected by a plurality of substantially vertical ribs a3 extending in the laying direction of the pipe pipe m (for example, , See Patent Document 1). In this case, the pipe pillow a is manufactured by melting pellets such as high-density polyethylene and polypropylene and performing injection molding.
JP 2001-280545 A

  However, since the conventional piping pipe pillow a is made of a synthetic resin made of high-density polyethylene, polypropylene, or the like, when buried in the ground together with the piping pipe m, the buried soil or the piping pipe material is used. The weight of the fluid flowing through m acts intensively on the rib a3 between the pipe material support part a2 and the lower surface of the pipe pillow main body a1, which may cause the rib 3a to bend.

  The present invention has been made in view of such points, and the object of the present invention is to provide a rib between the pipe material support portion and the lower surface of the pipe tube pillow main body so that the weight of the fluid in the buried soil or the pipe material for the pipe is increased. An object of the present invention is to provide a pipe pillow for a pipe that can prevent the ribs from being bent even if they act intensively.

  In order to achieve the above object, the solution provided by the present invention is to support a substantially half-circumferential portion of the pipe material for piping on the upper or lower surface of the pipe pillow main body formed in a rectangular frame shape as a pipe pillow. A substantially semicircular arc-shaped pipe material support portion is recessed, and between the upper and lower surfaces of the pipe tube pillow main body, the triangle is alternately forward and reverse between the upper and lower surfaces in a direction perpendicular to the pipe pipe laying direction. And a plurality of reinforcing ribs connected so as to be continuous.

  Due to this specific matter, the pipe support section and the pipe pipe facing the pipe support section are arranged so that the triangle is alternately reversed between the upper and lower surfaces of the pipe pipe pillow main body in the direction perpendicular to the laying direction of the pipe pipe. Since a plurality of reinforcing ribs are provided to connect between the opposing surfaces (upper surface or lower surface) of the pillow main body, the reinforcing ribs between the pipe material supporting portion and the opposing surface of the pipe pillow main body for piping facing this are provided. Strength is effectively secured, and when a synthetic resin pipe pillow is embedded in the ground together with the piping pipe, the weight of the fluid flowing in the buried soil and the piping pipe is weighted with the pipe support section. Even if it acts intensively on the reinforcing rib between the pipe pillow body facing the pipe and the opposing surface, the truss structure is formed, so that the reinforcing rib will not bend and the pipe material Support and smoothly perform the function of the tube pillow for piping It can become.

In addition, when a plurality of reinforcing ribs intersect each other so that triangles alternately forward and reverse between the upper and lower surfaces of the pipe pillow main body for piping overlap each other, between the upper and lower surfaces of the pipe pillow main body for piping The vertical height of the plurality of reinforcing ribs is halved, and the strength of the reinforcing ribs between the pipe material support part and the opposite surface of the pipe pillow body for piping will be more effectively secured. Therefore, it is possible to reliably prevent the reinforcing ribs from being bent due to the concentrated action of the weight of the fluid in the buried soil and the pipe material when buried in the pipe, and to fully exert the function of the pipe pillow for the pipe.

  Further, a reinforcing rib positioned between at least the pipe material support portion between the upper surface and the lower surface of the pipe tube pillow main body and the opposite surface of the pipe tube pillow main body facing the pipe rib main body, and the laying direction of the pipe tube material When the equilateral triangles are connected so as to be continuously reversed in the normal direction, the reinforcing ribs located between the pipe material support part and the facing surface of the pipe pillow body for piping are the most rigid. The strength of the reinforcing ribs is more effectively secured by exhibiting a high approximate equilateral triangle, and the concentration of the weight of the fluid in the buried soil and the piping material when buried in the ground together with the piping material. This makes it possible to more reliably prevent the reinforcing rib from being buckled and to further exert the function of the pipe pillow for piping.

  In short, in short, between the upper and lower surfaces of the piping tube pillow main body, the tube material support portion and the opposing surface of the piping tube pillow main body so that the triangles are alternately reversed in the forward and reverse directions in the direction orthogonal to the laying direction of the piping tube material. By providing a plurality of reinforcing ribs that connect between them, the strength of the reinforcing ribs is effectively ensured, and the pipe pillows made of synthetic resin are buried in the ground together with the pipes for pipes for buried soil and pipes The buckling of the reinforcing rib due to the concentrated action of the weight of the fluid in the pipe can be prevented, and the function of the pipe pillow for piping can be exhibited smoothly.

  In addition, by crossing a plurality of reinforcing ribs so that triangles alternately forward and reverse alternately between the upper and lower surfaces of the pipe pillow main body for piping overlap each other, the vertical height of the plurality of reinforcing ribs is reduced by half. Strength can be secured more effectively, and it is possible to reliably prevent buckling of the reinforcing ribs due to the concentrated action of the weight of the fluid in the buried soil and piping when buried in the ground together with the piping for piping. The function of the tube pillow can be fully exhibited.

  Furthermore, by connecting the reinforcing ribs so that the regular equilateral triangles are alternately reversed in the forward and reverse directions in a direction orthogonal to the laying direction of the piping for piping between the tubular material support and the facing surface of the piping pipe pillow main body. , The strength of the reinforcing ribs exhibiting the most rigid equilateral triangle shape between the pipe material support part and the opposite surface of the pipe pillow main body for piping is more effectively secured, and when embedded in the ground together with the pipe material for piping The buckling of the reinforcing rib due to the concentrated action of the weight of the fluid in the buried soil and the pipe material for piping can be prevented more reliably, and the function of the pipe pillow for piping can be further exhibited.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a front view of a piping tube pillow according to an embodiment of the present invention as viewed from the axial direction of the piping material. The piping tube pillow 1 supports a piping material M. In the pipe pillow 1, a pipe support 12 having a substantially semicircular cross section is recessed on one long side (upper surface in FIG. 1) of a pipe pillow main body 11 formed in a rectangular frame shape. The tubular material support portion 12 supports a substantially half-circumferential portion of the piping material M for piping.

  The pipe pillow 1 for piping is made of a thermoplastic resin such as polyethylene, polypropylene, polystyrene, polyethylene terephthalate (PET), and is manufactured by injection molding by melting a thermoplastic resin in the form of pellets. Moreover, thermosetting resins represented by SMC and BMC can also be manufactured by press molding.

The piping tube pillow 1 includes a pair of left and right connecting female portions 13 and a connecting male portion 14 on the other long side (the lower surface in the figure) of the piping tube pillow main body 11, and a piping tube. A connecting male part 14 is provided on one short side (left side in the figure) of the pillow main body 11, and a connecting female part 13 is provided on the other short side (right side in the figure) of the pipe pillow main body 11 for piping. . The piping tube pillow 1 is used in one set in the upper and lower positions at a predetermined interval in the axial direction of the piping tube M when supporting the piping tube M, and the outer peripheral portion of the piping tube M is set in one set. It is wrapped so as to be wrapped by the tube material support portion 12. In addition, one set of pipe pillows 1, 1 is connected to a pair of adjacent pipe pillows 1, 1 by mutual connection of a connecting female portion 13 and a connecting male portion 14. As shown in FIGS. 2 and 3, three pipes M,... Are three-dimensionally stacked by stacking three in the vertical direction (vertical direction in FIG. 2) and combining nine in the horizontal direction (vertical direction in FIG. 3). It is trying to arrange to. In this case, the connecting female part 13 and the connecting male part 14 are connected by sliding movement of the piping pipe material M from the axial direction.

  Between the upper and lower long sides of the pipe pillow body 11 for piping, the direction (the left-right direction in FIG. 1) is perpendicular to the laying direction of the pipe material M (the front and back direction in FIG. 1) between the upper and lower long sides. ) Are provided with a plurality of reinforcing ribs 15,. The reinforcing ribs 15 are substantially in the middle in the vertical direction so that triangles alternately forward and reverse in the direction perpendicular to the laying direction of the pipe material M are overlapped between the upper and lower long sides of the pipe pillow body 11. Cross at each position. In this case, the reinforcing rib located between the pipe material support part 12 between the upper and lower long sides of the pipe tube pillow main body 11 and the opposing surface (the lower surface in FIG. 1) of the pipe tube pillow main body 11 facing this. 15,... Are approximately 60 ° in the left-right direction and approximately 60 ° in the left-right direction so that substantially equilateral triangles that are alternately forward and reverse in the direction orthogonal to the laying direction of the piping material M are continued. They are connected with an inclination of 120 °.

  Therefore, in the above-described embodiment, the triangles are continuously reversed in the forward / reverse direction in the direction perpendicular to the laying direction of the pipe material M for piping (the left-right direction in FIG. 1) between the upper and lower long sides of the pipe pillow main body 11. Are provided with a plurality of reinforcing ribs 15 for connecting between the pipe material support 12 and the opposing surface (lower surface) of the pipe pillow body facing the pipe. The plurality of reinforcing ribs 15 are used for piping. Between the upper and lower long sides of the tube pillow body 11, the triangles that alternately forward and reverse in the direction orthogonal to the laying direction of the pipe material M for piping intersect each other at approximately the middle in the vertical direction, and are supported by the tube material. Reinforcing ribs 15,... Positioned between the portion 12 and the facing surface (the lower surface in FIG. 1) of the pipe tube main body 11 facing the pipe 12 are substantially equilateral triangles in a direction perpendicular to the laying direction of the pipe material M for piping. Will continue in reverse Are connected to the opposing surface of the pipe pillow main body 11 in the left-right direction at an angle of approximately 60 ° and approximately 120 °, respectively. The reinforcing ribs 15,... Positioned in the shape of a substantially equilateral triangle having the highest rigidity and the vertical height are halved, so that the strength of the reinforcing ribs 15,. When the pipe pillow 1 made of pipe is buried in the ground together with the pipe M, the weight of the fluid flowing in the buried soil and the pipe M is the pipe support 11 and the pipe pillow body 11 facing the pipe 11. Even if it acts intensively on the reinforcing ribs 15 between the opposing surfaces, the truss structure is formed, so that the reinforcing ribs 15 are not buckled and the pipe material M for piping is reliably supported. Can fully demonstrate the functions of the pipe pillow 1 .

  Next, a second embodiment of the present invention will be described with reference to FIG.

  In this embodiment, a connecting rib is provided in addition to the reinforcing rib. In addition, the structure other than a connection rib is the same as the case of the said Example 1, The same code | symbol is attached | subjected about the same thing and the detailed description is abbreviate | omitted.

That is, in this embodiment, as shown in FIG. 4, between the upper and lower long sides of the pipe pillow main body 11, the intersecting portion of the reinforcing ribs 15, 15 intersecting between both long sides is connected. Are provided with connecting ribs 21,... Extending in the vertical direction so as to connect the intersecting portions of the reinforcing ribs 15, 15 that intersect each other on both the left and right sides of the pipe material support portion 12.
In this case, each connecting rib 21 connects a substantially rhombus-shaped space defined by the reinforcing ribs 15,... Intersecting between both long sides of the pipe pillow main body 11 to the intersecting portion of the reinforcing ribs 15, 15. The triangle is divided into a triangular shape by means of this, and the triangle is continued in the direction perpendicular to the laying direction of the pipe material M for piping between the two long sides of the pipe pillow body 11, and the triangle is vertically moved on both the left and right sides of the pipe support part 12. To keep it continuous.

  Therefore, in the said Example, the connection rib 21, ... which connects the crossing part of the reinforcement ribs 15 and 15 which cross | intersect between the upper and lower long sides of the pipe pillow main body 11 for piping is provided extending in the left-right direction. In addition, since the connecting ribs 21 that connect the intersecting portions of the reinforcing ribs 15 that intersect on both the left and right sides of the pipe material support portion 12 are provided so as to extend in the vertical direction, The substantially rhombus-shaped space defined by the reinforcing ribs 15 that intersect between the two long sides is partitioned into a triangular shape, and the piping pipe material M is laid between the two long sides of the piping pipe pillow body 11. The strength of the reinforcing ribs 15 can be more effectively ensured by making the triangles continuous in the vertical direction on both the left and right sides of the tube material support portion 12 while continuing in a direction orthogonal to the direction. Therefore, buckling of the reinforcing ribs 15 due to the concentrated action of the weight of the embedded soil and the fluid in the piping pipe M when buried in the ground together with the piping pipe M is more reliably prevented, and the piping pipe The function of the pillow 1 can be further exhibited.

  In addition, this invention is not limited to said each Example, The other various modifications are included. For example, in the above-described embodiment, the upper and lower long sides of the piping pipe pillow main body 11 are arranged at approximately the middle in the vertical direction so that triangles alternately forward and reverse in a direction orthogonal to the laying direction of the piping pipe material M overlap each other. The reinforcing ribs 15 are crossed, but the triangles are alternately arranged in the direction perpendicular to the laying direction of the piping pipe material between the upper and lower long sides of the piping pipe pillow body without overlapping the reinforcing ribs. Reinforcing ribs may be provided so as to continue forward and reverse.

  In each of the above embodiments, three pipe pipes M are stacked in the vertical direction and arranged three-dimensionally by arranging three in the horizontal direction and combining them. Of course, it may be arranged in the.

It is the front view which looked at the pipe pillow concerning Example 1 of this invention from the axial direction of the pipe material for piping. It is the side view seen from the side in the state which arranged the pipe material for piping three-dimensionally using the pipe pillow for the piping. It is the top view seen from the upper direction in the state which arranged the pipe material for piping three-dimensionally using the pipe pillow for the piping. It is the front view which looked at the pipe pillow concerning Example 2 of this invention from the axial direction of the pipe material for piping. It is the front view which looked at the pipe pillow concerning a prior art from the axial direction of the pipe material for piping.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tube pillow 11 Pipe tube pillow body 12 Pipe support part 15 Reinforcement rib M Pipe tube

Claims (3)

On the upper surface or lower surface of the pipe pillow main body formed in a rectangular frame shape, a substantially semicircular arc-shaped pipe material support portion that supports a substantially semicircular portion of the pipe material for piping is recessed,
Between the upper and lower surfaces of the pipe tube pillow body, a plurality of reinforcing ribs are connected between the upper and lower surfaces so that the triangles are alternately reversed in the forward and reverse directions in a direction perpendicular to the laying direction of the pipe material for piping. A pipe pillow for piping characterized by being provided. In the pipe pillow for piping according to claim 1,
A plurality of reinforcing ribs intersect each other so as to overlap triangles alternately forward and reverse between an upper surface and a lower surface of a pipe tube pillow main body. In the pipe pillow for piping according to claim 1 or 2,
The reinforcing rib positioned between at least the pipe material support portion between the upper surface and the lower surface of the pipe tube pillow main body and the opposite surface of the pipe tube pillow main body facing this is orthogonal to the laying direction of the pipe tube material. A pipe pillow for piping which is connected so that substantially regular triangles are alternately forward / reversely rotated in directions.

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