JP2000192921A - Synthetic resin joint and assembling method of pipe structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To conveniently and efficiently perform fitting work by joining a nonpenetrating fitting cylinder used in the horizontal direction in a crossing shape relative to a fitting cylinder used in the vertically axial direction, and projecting an extension piece to a cylinder port end surface lower shaft part of a horizontal direction fitting hole. SOLUTION: A synthetic resin joint joins a nonpenetrating fitting cylinder 3 being used in the horizontal direction and having a dead end step part 7A in the inmost part of a fitting hole 3 in crossing-shaped arrangement to a fitting cylinder 4 used in the vertical direction to the axis for a pipe structure. An extension piece 8 by extending a cylindrical wall of the fitting cylinder 3 is projected from a lower half part of a cylinder port end surface 3a forming an inlet of a fitting hole 1. In assembling the pipe structure, the end side of a resin-covered steel pipe of a continuously connecting material is mounted on and fitted in the extension piece 8 of the nonpenetrating fitting cylinder 3 fitting a resin-covered steel pipe of a vertical column in the fitting cylinder 4, and an adhesive liquid is injected into the fitting part to be joined. Thus, in assembling the pipe structure, joining work with a horizontal directional continuously connecting material can be skillfully, quickly and efficiently performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a plurality of fitting cylinders each having a fitting hole of a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and bonded is fitted integrally in a crossed arrangement. A resin-coated steel pipe fitted into the fitting hole is bonded by bonding, and a synthetic resin joint used for assembling various pipe structures, and a pipe structure using the synthetic resin joint are used. Belonging to the technical field of an assembling method, and more specifically, a joint devised so that an assembling operation of a pipe structure or the like is easy, an assembling method of a pipe structure or the like performed using the joint, and a pipe structure The present invention relates to a joint capable of using a plurality of connected resin-coated steel pipe bundles having a large capacity for a load as horizontal beams such as objects.

[0002]

2. Description of the Related Art Conventionally, a resin-coated steel pipe whose surface is coated and bonded with a synthetic resin, and a plurality of fitting cylinders having fitting holes of a diameter into which the resin-coated steel pipe fits are integrally connected in a cross-shaped arrangement. The joints shown in FIGS. 13, 14A, B, and 15 are variously known and well-known. By the way,
The joint shown in FIG. 13 has fitting tubes a and b joined in a cross-shaped cross-shaped arrangement (two-dimensional), and the fitting shown in FIGS. 14A and 14B has fitting tubes a, b, and c each having a right angle of three. Direction crossing arrangement (3
Dimension). The joint shown in FIG. 14A is a non-penetrating fitting cylinder in which the vertical fitting cylinder b has a dead end at the upper side of the fitting hole and has a stopper.
3. The joint shown in FIG. 14B has a configuration in which the fitting hole of the fitting tube b in the vertical direction is penetrated.

Conventionally, various types of joints as described above have been used, and resin-coated steel pipes e have been inserted into (fitting holes d) of the fitting cylinders a to c.
Various methods (techniques) for assembling and joining various pipe structures by bonding them together by adhesion are well-known and well-known. A conventional method of assembling various pipe structures using a resin-coated steel pipe and a synthetic resin joint is generally carried out as illustrated in the solid line portions of FIGS. 16 or 17A and 17B.

FIG. 16 shows a multi-shelf shelf that is long and high.
For example, length (digit line) 19.5 m, height 4.2 m, depth 1
This outlines the method of assembling a shelf of about 6 steps, m, number of digits, pitch between columns 1.35m, and assembling the required number of parts into a partial three-dimensional structure ahead of the part K corresponding to a part of the column group of the shelf. Thereafter, the partial column group portions K in the standing posture are joined and bonded via a plurality of connecting resin-coated steel pipes P constituting a horizontal shelf plate equivalent portion or a part (or a girder) thereof. Hereinafter, a similar procedure is repeated in the assembly order direction F.

17A and 17B, a so-called bonsai shelf on which a flowerpot or the like is mounted, for example, a cover (cover) made of a transparent sheet can be attached, and its length (width) and height are 1.8.
This outlines the method of assembling a bonsai shelf with a depth of about 1 m and a depth of about 1 m. Also, three pillar groups K are first assembled on the side frame structure, and one pillar group K is placed on the floor. After that, a plurality of connecting resin-coated steel pipes P constituting a shelf plate equivalent portion having a vertical posture on the upper side thereof and the remaining partial column group portion K having a horizontal posture are alternately arranged. The partial support group portions K are connected to each other via a resin-coated steel pipe P and bonded to each other. Then, when the required adhesive strength is secured, the bonsai shelf is raised and brought into a normal posture.

Incidentally, Y and Z are vertical columns and horizontal connecting members as constituent members of the partial column group K, respectively.

[0007]

In particular, in the conventional method of assembling a shelf as shown in FIG. 16, one end of a plurality of connecting resin-coated steel pipes P is assembled in a part of a column group in a forward-first order. After fitting horizontally into the fitting tube of the K joint and joining
The work of fitting all the resin-coated steel pipes simultaneously by aligning the other ends with the fitting cylinders of the joints of the partial column group K on the rear side in the assembling direction is troublesome and troublesome.

Further, assembling a required number of partial three-dimensional structures in advance as the partial pillar group portion K increases the floor area required for such assembly and storage.

Conventional joints generally have the same diameter (the diameter of a fitting hole) of each fitting cylinder in many cases, and the strength required for columns, girders and beams is coupled to each fitting cylinder. Is limited by the strength of the resin-coated steel pipe having the same outer diameter, and the degree of freedom in designing and manufacturing is lacking.

In addition, in the case of a joint in which the cylinder walls of the two fitting cylinders a and b are arranged in a three-dimensional three-dimensional cross shape as shown in FIG. 2), the distance between the axes of the two resin-coated steel pipes e, e becomes large, and there is a problem that the degree of design freedom of the pipe structure and the effective space of the structure itself are restricted.

An object of the present invention is to solve the above-mentioned problems of the prior art at once. Specifically, first, one end of a plurality of resin-coated steel pipes for connection is connected to one end in the assembling order direction. The other end is connected to the fitting cylinder of the joint of the partial pillar group part (vertical frame) on the rear side in the assembling order direction after being connected to the fitting cylinder of the joint of the vertical column group part (vertical frame) in the horizontal direction. An object of the present invention is to provide a method for assembling a pipe structure or the like that can easily and efficiently perform an operation of aligning positions and fitting all resin-coated steel pipes simultaneously.

A second object of the present invention is to provide a method for assembling a pipe structure or the like which requires a small floor area for the above-mentioned assembly and storage.

A different object of the present invention is to assemble the other ends of a plurality of resin-coated steel pipes for connection in the assembly direction in the horizontal direction to the fitting cylinder of the joint of the structural part (vertical frame) on the rear side in the rear order direction. An object of the present invention is to provide a synthetic resin joint improved to a configuration that facilitates the work of fitting and joining.

An object of the present invention is to provide a joint having three-dimensionally three-dimensionally intersected cylindrical walls of fitting cylinders whose fitting holes differ in size from one another, and which are fitted into the fitting holes. Synthetic resin joints that can reduce the distance between the axes of the two joined resin-coated steel pipes, and thus provide freedom in the design of the pipe structure and expand the effective space of the structure itself as much as possible. To provide.

A further object of the present invention is to make it possible to use a resin-coated steel pipe bundle in which a plurality of resin-coated steel pipes are vertically arranged in parallel, and to design the strength required for columns, girders and beams. An object of the present invention is to provide a joint made of a synthetic resin having a degree of freedom in manufacturing.

[0016]

Means for Solving the Problems As means for solving the above-mentioned problems of the prior art, a synthetic resin joint according to the first aspect of the present invention comprises:

A plurality of fitting cylinders each having a fitting hole of a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and bonded are fitted integrally in a crossed arrangement, and fitted into the fitting hole. A synthetic resin joint in which a resin-coated steel pipe is bonded by bonding and used for assembling a pipe structure or the like, comprising: (a) a fitting pipe having an axial center that is used in a vertical direction to the pipe structure; A non-penetrating fitting cylinder having a dead end stopper located at the back of the fitting hole is coupled to the pipe structure in a horizontal direction, and a non-penetrating fitting cylinder having a dead end stopper is connected in a cross-shaped arrangement. (B) The shaft core is horizontal. The extension piece of the form extending the cylinder wall of the fitting cylinder is projected from the lower half of the end face of the cylinder opening forming the entrance of the fitting hole in the non-through fitting cylinder used in the direction of the direction. Features.

According to a second aspect of the present invention, there is provided a joint made of synthetic resin, wherein a plurality of fitting cylinders each having a fitting hole of a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and adhered are fitted in a crossed arrangement. The resin-coated steel pipe fitted into the fitting hole and integrally bonded to each other and bonded together to be used for assembling a pipe structure or the like is a synthetic resin joint. (A) A shaft center is perpendicular to the pipe structure. The fitting hole of the fitting tube used in the direction is penetrated, and for this fitting tube, the shaft core is used in the horizontal direction to the pipe structure and located at the back of the fitting hole. (B) the shaft core forms an entrance of a fitting hole in the non-penetrating fitting cylinder used in a horizontal direction. An extension piece extending from the lower half of the end face of the cylinder opening extends the cylinder wall of the fitting cylinder. That has been issued yellow, and said.

According to a third aspect of the present invention, there is provided a joint made of synthetic resin, wherein a plurality of fitting cylinders each having a fitting hole of a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and bonded are fitted in a crossed arrangement. The resin-coated steel pipe fitted into the fitting hole is bonded by bonding and used for assembling a pipe structure or the like. (A) A shaft center is perpendicular to the pipe structure. The non-penetrating fitting cylinder having a dead end stopper whose axial center is used in the horizontal direction with respect to the fitting structure used in the same pipe structure and which is located at the back of the fitting hole is formed in each of the cylinder walls. (B) a lower half portion of the end face of the cylinder opening which forms the entrance of the fitting hole in the non-through fitting cylinder in which the axis is used in the horizontal direction. The extension piece of the form that extends the cylinder wall of the fitting cylinder is projected from (C) The diameter of the fitting hole of the fitting tube used in the pipe structure in which the shaft is used in the vertical direction is large, and a thick resin-coated steel pipe is connected to the pipe structure. The diameter of the fitting hole in the non-through fitting cylinder which is used in the direction and has a dead end wall at the back of the fitting hole is small, and a thin resin-coated steel pipe is connected. (D) The axis of the pipe is horizontal to the pipe structure. A plurality of the non-penetrating fitting cylinders used in the same direction are arranged in parallel in the up-down direction of the pipe structure, and the non-penetrating fitting cylinders arranged in the up-and-down direction form one adjacent cylinder wall. It is configured as a plurality of joint-shaped fitting cylinders that are communicated via the partially cut-out grooves, and a plurality of resin-coated steel pipes are vertically arranged at intervals to fit into the plurality of joint-shaped fitting cylinders. And a plurality of connected resin-coated steel pipes connected to each other via the coating resin layer connecting portion. There characterized in that it is coupled by fitting the covering resin layer connecting portion to the groove.

According to a fourth aspect of the present invention, there is provided a joint made of synthetic resin, wherein a plurality of fitting cylinders each having a fitting hole having a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and adhered are fitted in a cross-shaped arrangement. The resin-coated steel pipe fitted into the fitting hole and integrally bonded to each other and bonded together to be used for assembling a pipe structure or the like is a synthetic resin joint. (A) A shaft center is perpendicular to the pipe structure. The fitting tube eaves hanging metal fitting hole used in the direction of the direction is penetrated, and for this fitting tube,
A non-penetrating fitting cylinder having a dead end stopper located at the back of the fitting hole and having an axial center used in the pipe structure in a horizontal direction is connected to each of the cylinder walls in a three-dimensional crosswise arrangement. (B) a form in which the cylindrical wall of the fitting tube is extended from the lower half of the end surface of the fitting opening of the non-through fitting tube in which the shaft core is used in the horizontal direction. (C) the fitting hole of the fitting cylinder whose shaft core is used in the vertical direction to the pipe structure is large, and a thick resin-coated steel pipe is connected to the pipe structure, The diameter of the fitting hole in the non-through fitting cylinder having a dead end deep in the fitting hole and the wall being used in the horizontal direction to the object and having a dead end is small,
(D) a plurality of the non-penetrating fitting cylinders whose shaft cores are used in a horizontal direction to the pipe structure are arranged in parallel in a vertical direction of the pipe structure; The upper and lower non-penetrating fitting cylinders are configured as a plurality of connecting fitting cylinders that are communicated via a groove in a form in which each adjacent cylinder wall is partially cut away. A plurality of resin-coated steel pipes are arranged in parallel with each other at intervals so as to fit into the individual connection-type fitting cylinder, and a plurality of resin-coated steel pipe bundles connected to each other via the coating resin layer connecting portion. The cover resin layer connecting portion may be fitted into the groove to be connected.

According to a fifth aspect of the present invention, there is provided the joint made of synthetic resin according to the third or fourth aspect, wherein a plurality of joints are formed in the pipe structure such that a plurality of shaft cores are used in a horizontal direction. The diameter of one fitting hole in the non-penetrating fitting cylinder having a dead end stopper located at the back is the same size as the outer diameter of the resin-coated steel pipe fitted therein, and the diameter of the other fitting holes is It is characterized in that it is formed to have a width equal to the outer diameter of the resin-coated steel pipe to be fitted in and slightly larger in the vertical direction.

According to a sixth aspect of the present invention, there is provided a method for assembling a pipe structure, wherein a plurality of fitting cylinders are integrally connected in a crossed arrangement to a resin-coated steel pipe having a surface coated with a synthetic resin and adhered. In a method of assembling a pipe structure by fitting to each fitting cylinder of a resin joint and bonding them together by bonding, A) The pipe structure is composed of a plurality of resin-coated steel pipes as vertical columns and a plurality of resin-coated steel pipes as horizontal connecting members. And a group of a plurality of resin-coated steel pipes as connecting members that connect the vertical frames to each other in a horizontal direction, and a group of resin-coated steel pipes that connect the vertical frames to each other in the horizontal direction. In the vertical frame, at the connection position with the resin-coated steel pipe as the connecting member, an axis is used in a horizontal direction, and the cylindrical wall of the fitting cylinder is formed from the lower half of the end of the cylinder mouth which is the entrance of the fitting hole. The extension piece of the form that extends C) using a synthetic resin joint having a non-penetrating fitting cylinder having a dead end stopper, C) assembling a resin as a connecting member to the horizontal non-penetrating fitting cylinder in the first vertical frame. D) fitting one end of the coated steel pipe; D) to the other end side of the resin-coated steel pipe as the connecting member, the assembling order roughly matches the positions of the non-penetrating fitting cylinders in the horizontal direction in the second vertical frame; From the posture slightly inclined rearward with the lower end of the vertical frame as a fulcrum, in order from the horizontal non-penetrating fitting cylinder located at the lowermost stage in the same vertical frame to the non-penetrating fitting cylinder sequentially located at the upper stage, E) placing the other end of the resin-coated steel pipe as the connecting member on the extension piece of each non-penetrating fitting cylinder, and proceeding with the fitting operation; and E) connecting the other end of the resin-coated steel pipe as the connecting member with the second end. Each non-penetrating fitting cylinder in the horizontal direction in the vertical frame of rank At the stage when the fitting operation of the first frame and the second frame are fixed, and F) the horizontal of each of the first frame and the second frame is fixed. The method is characterized by injecting and bonding an adhesive liquid to a fitting portion between each of the non-penetrating fitting cylinders in the directions and the resin-coated steel pipe as the connecting member fitted thereto, thereby proceeding with assembly.

According to a seventh aspect of the present invention, there is provided a joint made of synthetic resin, wherein a plurality of fitting cylinders each having a fitting hole of a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and bonded are fitted in a crossed arrangement. A resin-coated steel pipe fitted into the fitting hole and bonded to the pipe structure for assembly of a pipe structure or the like, wherein (a) an axis is perpendicular to the pipe structure; For the fitting cylinder used in the same direction, the fitting cylinder whose axis is used in the horizontal direction to the pipe structure is connected to each of the cylinder walls in a three-dimensional crossed arrangement. (B) The diameter of the fitting hole of the fitting cylinder used for the pipe structure to be vertically oriented to the pipe structure is large, and a thick resin-coated steel pipe is connected to the pipe structure, and the shaft core is horizontal to the pipe structure. The diameter of the fitting hole in the fitting cylinder used in the direction is small, and a thin resin-coated steel pipe is (C) a plurality of the fitting cylinders whose shaft cores are used in a horizontal direction with respect to the pipe structure are arranged in parallel in the up-down direction of the pipe structure, and The cylinders are configured as a plurality of joint-shaped fitting cylinders that are communicated via a groove in a form in which each adjacent cylinder wall is partially cut away. A plurality of resin-coated steel pipes are vertically arranged in parallel with each other, and a plurality of connected resin-coated steel pipe bundles connected to each other via the coating resin layer connection portion fit the coating resin layer connection portion into the groove portion. And are combined.

In the joint made of synthetic resin according to the present invention, a plurality of fitting cylinders each having a fitting hole having a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and adhered are fitted together. And a resin-coated steel pipe fitted into the fitting hole and bonded to the pipe structure for assembly of a pipe structure or the like. A plurality of fitting cylinders used are arranged in parallel in the up-down direction of the pipe structure, and the fitting cylinders arranged above and below have a groove in a form in which each adjacent cylinder wall is partially cut away. A plurality of resin-coated steel pipes are vertically arranged in parallel with each other at intervals so as to fit into the plural connection-shaped fitting cylinders. Multiple resin-coated steel pipes connected to each other via a layer connection The bundle is fitted by fitting the covering resin layer connecting portion into the groove, and (b) one fitting in a plurality of connecting fitting cylinders whose axis is used in a horizontal direction on the pipe structure. The diameter of the fitting hole is the same size as the outer diameter of the resin-coated steel pipe to be fitted into it, and the fitting holes of the other fitting cylinders are
It is characterized in that its diameter is formed to have a width equal to the outer diameter of the resin-coated steel pipe to be fitted therein and slightly larger in the vertical direction.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the illustrated embodiments and examples of the present invention will be described. 1 to 5 show a synthetic resin joint according to an embodiment of the present invention.

In each case, a plurality of fitting cylinders 3 and 4 having fitting holes 1 and 2 each having a diameter for fitting a resin-coated steel pipe in which a surface of a steel pipe is coated with a synthetic resin and adhered are integrally connected in a crossed arrangement. The resin-coated steel pipes fitted in the fitting holes 1 and 2 are bonded together by bonding, for example, a basic configuration as a synthetic resin joint for use in assembling a pipe structure as shown in FIGS. 16 and 17. Are common.

In the case of the synthetic resin joint according to the first aspect of the present invention, as represented by the embodiment of FIGS.
Fitting tube 4 whose axis is used in the vertical direction to the pipe structure
On the other hand, a non-penetrating fitting cylinder 3 having a dead end stepped portion 7A or a dead end wall 7B deep in the fitting hole 1 is used in a cross-shaped arrangement. Are combined. In the embodiment of FIGS.
The fitting cylinders 3 and 4 are respectively connected in a two-dimensional cross-shaped arrangement parallel to the paper surface. The fitting tube 5 in the joint of FIG. 3 used for the end of the pipe structure illustrates that such a cross-shaped arrangement also exists for the horizontal connecting member (beam).
In these synthetic resin joints, the fitting tube 3 is formed from the lower half portion of the tube opening end surface 3a forming the entrance of the fitting hole 1 in the non-through fitting tube 3 in which the shaft core is used in the horizontal direction. Is characterized in that an extension piece 8 in the form of extending the cylindrical wall is protruded.

Next, the synthetic resin joint according to the second aspect of the present invention has the common features of the above-mentioned structure, and furthermore, a fitting cylinder in which an axis is used in a vertical direction to the pipe structure. 4 are penetrated (FIG. 1, FIG. 2, FIG. 3, FIG. 4). A non-penetrating fitting cylinder 3 having a dead end stepped portion 7A or a dead end wall 7B in which a shaft core is used in the same pipe structure in a horizontal direction with respect to the fitting tube 4 and which is deep in the fitting hole 1 is provided. From the lower half of the end face 3a of the non-through fitting tube 3 which is connected in a cross-shaped arrangement and forms the entrance of the fitting hole 1 in the non-through fitting tube 3 used in the horizontal direction, The extension piece 8 in the form of extending the cylindrical wall of No. 3 is protruded.

Further, the synthetic resin joint according to the third aspect of the present invention provides the joint pipe 4 having a shaft center perpendicular to the pipe structure as described above. The non-penetrating fitting cylinder 3 is used in a horizontal direction, and has a dead end wall 7B (or a dead end stepped portion 7A) at the back of the fitting hole 1. The first characteristic is that they are connected in a three-dimensional three-dimensional cross-like arrangement as shown in FIG. The fitting tube 6 in FIG. 4 is for a horizontal connecting member (beam).

A second feature of the invention according to claim 3 is that the diameter of the fitting hole 2 of the fitting cylinder 4 used for the pipe structure in the direction perpendicular to the pipe structure is as large as 42 mm, for example. A resin-coated steel pipe having a large diameter can be connected. On the other hand, the shaft core is used in the pipe structure in a horizontal direction, and its fitting hole 1
The diameter of the fitting hole 1 of the non-penetrating fitting cylinder 3 having the dead end wall 7B at the back is small, for example, 28 mm, and a thin resin-coated steel pipe of the same outer diameter is joined. Therefore, using a thick resin-coated steel pipe for the column of the pipe structure to withstand the vertical load, and using a resin-coated steel pipe as narrow as possible for the beam or girder crossing the column, The distance between the pipe axes required for the intersection of both pipes is reduced as much as possible, so that the three-dimensional space occupied by the pipe structure is made as small as possible, and the effective space within the pipe structure is as large as possible. Make it possible. However, the fitting hole 2 of the fitting tube 4 in the vertical direction in the joint of FIG. 4 is penetrated, and the column is connected in a through-shape. However, the fitting tube 4 in the vertical direction of the fitting of FIG. This is a non-penetrating fitting cylinder having a dead end wall 7C at an intermediate portion of the hole 2 and has a configuration in which a supporting column is added to the upper and lower sides thereof to be connected.

A third feature is that a plurality of the non-penetrating fitting cylinders 3 whose axes are used in a horizontal direction with respect to the pipe structure are provided in a vertical direction of the pipe structure, for example, the embodiment shown in FIG. Is two, FIG.
In the embodiment of the present invention, three non-penetrating fitting cylinders 3, 3 arranged in parallel with each other and arranged above and below are communicated with each other via a groove portion 9 in which each adjacent cylinder wall is partially cut away. 4 (see FIG. 4).
A, FIG. 5A). Therefore, as illustrated in FIG. 9, an interval (for example, an interval of fitting into the fitting holes 1, 1 of the plurality of connected fitting cylinders 3, 3) is provided to the plurality of connected fitting cylinders 3, 3. 3
4 mm), a plurality of (two in the illustrated example) resin-coated steel pipes 20a, 20a are vertically arranged in parallel, and a plurality of connected resin pipes mutually connected via respective coating resin layer connecting portions 20b. The coated steel tube bundle 20 is connected to the coated resin layer connecting portion 20.
b is fitted into the groove 9 and joined.

In this case, the above-mentioned plural resin-coated steel pipe bundles 20 can be used as a horizontal girder or beam in a pipe structure, and the strength and rigidity with respect to the load can be obtained by the effect of overlapping (overlapping) the number of pipes. It is possible to assemble a pipe structure having a large girder and a beam. Not only that, as described in the second feature section above, the columns are sufficiently thick, and the beams or beams are made of resin-coated steel tubes that are as narrow (small) as possible, and the intersections of the two tubes are used. It is also possible to reduce the distance between the tube axes necessary for the tube structure as much as possible, thereby reducing the three-dimensional space occupied by the tube structure, and securing the effective space in the tube structure as large as possible.

[0033] The invention described in claim 4 is the above-described claim 3.
In the configuration of the synthetic resin joint described in the above, the dead end wall 7B (or the dead end stepped portion 7) is formed in a plurality of joints in which the axis is used in the horizontal direction in the pipe structure and is used in the horizontal direction.
A), the diameter of one fitting hole in the non-through fitting cylinder 3 having the fitting hole shown in FIG. The diameter of the other fitting hole, that is, the diameter of the upper fitting hole 1 in the joint of FIG. 4 is a semicircle having the same size as the outer diameter of the resin-coated steel pipe fitted therein (that is, a radius of 14 mm in the above example). The center of each of the two is slightly spaced S in the vertical direction.
It is formed in a long (large) oval in the vertical direction with an interval of (for example, 0.6 mm).

On the other hand, the joint shown in FIG. 5 has a dead end wall 7B (or a dead end stepped portion 7A) deep in the fitting hole 1 in the form of a plurality of joints in which the axis is used in a horizontal direction to the pipe structure. 4 is different from the joint of FIG. 4 in that the non-penetrating fitting cylinders 3 each have a square hole and are arranged three in the vertical direction of the pipe structure. In the case of the joint shown in FIG. 5, the diameter of one central fitting hole 1 is a square hole having the same size (square of 28 mm on one side) as the outer diameter of the resin-coated square steel pipe to be fitted therein. The diameter of the two fitting holes 1 and 1 is a rectangle having a width equivalent to the outer diameter of the resin-coated square steel pipe to be fitted therein and having a slightly larger (for example, 0.6 mm) longer (larger) dimension only in the vertical direction. Is formed.

Therefore, according to the fourth aspect of the present invention, when the plurality of connected resin-coated steel tube bundles 20 are used, the groove 9 is formed by partially cutting off the adjacent cylindrical wall.
In the work of fitting into the plurality of connecting fitting tubes 3 communicated via the pipes, there are irregularities (manufacturing errors) in the distance between the plurality of resin-coated steel pipes 20a, 20a constituting the resin-coated steel pipe bundle 20 in the space between them. If there is, if the irregularity is within an allowable range, it can be easily absorbed by the complementary effect of the fitting hole having a large dimension in the vertical direction as described above, and the fitting operation can be easily performed. Fitting hole 1 of individual connecting fitting tube 3 and resin-coated steel pipe bundle 2 of plural connecting shapes
The gap between 0 and a large gap is limited,
The reliability of the adhesive strength can be maintained.

Next, a fifth aspect of the present invention is a method of assembling a pipe structure using each of the above synthetic resin joints. More specifically, a resin-coated steel pipe whose surface is coated with a synthetic resin and bonded is fitted into a hole of each fitting cylinder of a synthetic resin joint in which a plurality of fitting cylinders 3 and 4 are integrally connected in a crossed arrangement. It is carried out as a method of assembling a tube structure by bonding by means of bonding.

According to the fifth aspect of the present invention, the size of the pipe structure is substantially the same as that described with reference to the shelf in FIG. 16, for example, and a plurality of vertical columns are apparent with reference to FIGS. A 10-bar resin-coated steel pipe is connected to multiple horizontal connecting members (beam members)
A group of a plurality of flat plate-shaped vertical frames 13 having 11 resin-coated steel pipes and fitting cylinders 5 and 6 shown in FIGS. 3 and 4 or joined by using an arbitrary synthetic resin joint; 13 and 13 is composed of a combination of a plurality of connecting members (girder members) 14 which are connected in a horizontal direction and a resin-coated steel pipe group.

As shown in FIGS. 1 to 5 and described above, a shaft core is used in the vertical frame 13 at a connection position with the resin-coated steel pipe serving as the connecting member 14 in a horizontal direction. An extension piece 8 in the form of an extension of the cylinder wall of the fitting tube 3 protrudes from the lower half of the end face 3a of the cylinder mouth, which is the entrance of the fitting hole 1, and a dead end stepped portion 7A or A synthetic resin joint 12 provided with the non-penetrating fitting cylinder 3 having the dead end wall 7B is preferably used. The non-penetrating fitting cylinder 3 is suitable for a method in which connecting members 14 are continuously added to both sides thereof.

As shown in FIG. 6A, one end (left end) of the resin-coated steel pipe, which is the connecting member 14, is first inserted into the horizontal non-penetrating fitting cylinder 3 in the vertical frame 13A whose assembly order is the first (first). Fit.

Next, to the right end side of the resin-coated steel pipe as the connecting member 14, the position of each non-penetrating fitting cylinder 3 in the horizontal direction of each joint in the vertical frame 13B in the later (second) vertical frame 13B. From a posture (see FIG. 6A) in which they are roughly aligned and slightly inclined rearward (rightward in the figure) with the lower end of the vertical frame 13B as a fulcrum,
In the vertical frame 13B, in order from the horizontal non-penetrating fitting cylinder located at the lowermost stage to the non-penetrating fitting cylinder located sequentially at the upper stage, the vertical frame 13B is gradually raised to a vertical posture, and The other end side of the resin-coated steel pipe as the connecting member is placed on the extension piece 8 of the through fitting cylinder 3 (see FIG. 7), and the fitting operation is performed.

In this manner, at least until the right end of the resin-coated steel pipe as the connecting member 14 and the non-penetrating fitting cylinder 3 in the horizontal direction in the second vertical frame 13B are completely fitted, the assembly order is first. The interval between the preceding (first-ranking) vertical frame 13 (13A) and the following (second-ranking) vertical frame 13 (13B) at the stage (middle part in FIG. 6A) is determined by the length of the connecting member 14. 6A, is fixed at a constant interval by a detachable interval holding member indicated by reference numeral 15 in FIG. 6A, and an immovable adhesive state is firmly held to secure a required adhesive strength.

The spacing between the first and second vertical frames 13A, 13B during assembly is restricted to a fixed distance by the spacing member 15 used in the previous step or another spacing member. The adhesive liquid is injected into a fitting portion between the non-penetrating fitting cylinders 3 in the horizontal direction of the first and second vertical frames 13A and 13B and the resin-coated steel pipe as the connecting member 14 fitted therein. Then, the assembly is performed by bonding.

According to the assembling method according to the fifth aspect of the present invention, the assembling process proceeds sequentially in the assembling order direction F by joining the flat plate-shaped vertical frames 13 and the connecting members 14 together. In addition, the fitting work of the two can be smoothly and steadily advanced by the extension piece 8 of the joint 12, so that the work is easy and efficient.

Furthermore, the group of vertical frames 13 manufactured in advance can be laid sideways on top of each other, or can be placed on top of each other. The assembly and storage space in the system can be greatly reduced, and it is economical and the implementation opportunity can be expanded.

FIG. 8 shows a part of an embodiment in which the invention described in claim 5 is applied to a multi-stage roller conveyor shelf.
The joint of the embodiment shown in FIG. 4 is used. The drive roller 18 is driven and rotated via a drive shaft 16 and a drive transmission belt 17. According to this embodiment, as the joint 12, the joint of the embodiment of FIG. 4 in which the horizontal non-through fitting tube 3 and the vertical fitting tube 4 are connected in a three-dimensional crosswise arrangement is used. As a result, the pitch P between the rollers 18 sandwiching the joint 12 can be reduced by almost the outer diameter of the fitting tube 4 in the direction perpendicular to the joint of the embodiment of FIG. The entire pitch between the rollers 18 including the pitch can be set to the pitch P between the rollers sandwiching the joint 12.

According to the fifth aspect of the present invention, only the assembling portion (the right side portion in FIG. 6A) by the first and second vertical frames 13 in the assembling order direction F is shown in FIG.
And B, according to the assembling procedure by the solid line illustrated portion,
First, the first and second vertical frames 13 are connected to each other via the connecting member 14 in a horizontal posture and bonded to produce a partial three-dimensional structure, and then when the required adhesive strength is secured, the partial three-dimensional structure is formed. When the structure is raised and in a normal posture,
Since the partial three-dimensional structure is stably placed on the floor as a cube having a stable shape, the assembly of the third and subsequent vertical frames 13 in the assembly order direction F is connected to the vertical frame 13. The above-described assembling method using the material 14 can stably and efficiently proceed.

The portion indicated by a two-dot chain line in FIG. 17B is a part of the conventional bonsai shelf which is raised and brought into a normal posture after a required adhesive strength is secured. 5 illustrates an embodiment in which the required number of shelves is increased by applying the invention described in FIG. 5. The vertical frame 13 having the joint 12 having the extension piece 8 and the connecting member 14 are also illustrated. The assembling process is sequentially advanced in the assembling order direction F by the above-described assembling method used.

Next, although not directly involved in the above-described method of assembling the pipe structure, the synthetic resin having no extension piece 8 based on the technical idea of the synthetic resin joint according to the third or fourth aspect of the present invention. The manufacturing joint is implemented as the invention according to claims 6 and 7 as follows.

A joint made of synthetic resin according to the invention according to claim 6 has a plurality of fitting cylinders 3 having fitting holes 1 and 2 of a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and adhered is fitted. , 4 are integrally joined in a cross-shaped arrangement, and are implemented as synthetic resin joints that are used to assemble pipe structures by joining resin-coated steel pipes fitted in the fitting holes 1 and 2 by bonding. This is basically the same as the structure of the joint shown in FIGS. 4 and 5 (the invention according to claim 3), but a fitting in which an axis is used in a vertical direction to the pipe structure. The fitting tube 3 has a configuration in which the shaft core is used in the horizontal direction with respect to the joint tube 4 and the fitting tube 3 is connected to the respective tube walls in a three-dimensional three-dimensional intersecting arrangement. And FIG. 10A
As shown in FIGS. 4C, the fitting tube 3 does not have the extension piece 8 (compare FIGS. 4A to 4C).

As an example, the diameter of the fitting hole 2 of the fitting cylinder 4 whose axis is used in the vertical direction is, for example, 42
mm and a thick resin-coated steel pipe is joined. The axial center is used in the pipe structure in the horizontal direction, and a dead end wall 7B (or a dead end stepped portion 7A) is provided at the back of the fitting hole 1.
The diameter of the fitting hole 1 in the non-penetrating fitting cylinder 3 having a small diameter of, for example, 28 mm, is connected to a thin resin-coated steel pipe.

A plurality of the non-penetrating fitting cylinders 3 whose axes are used in a horizontal direction with respect to the pipe structure are provided in the vertical direction of the pipe structure, for example, two in the embodiment of FIG. The plurality of non-penetrating fitting cylinders 3, 3 arranged in parallel and arranged above and below are connected to each other through a groove 9 in which adjacent cylinder walls are partially cut away. It is configured as a tube.

Therefore, the fitting tube 3 having a plurality of connection shapes is provided.
In the above, a plurality of resin-coated steel pipes are vertically arranged in parallel at an interval fitted to each fitting cylinder, and a plurality of resin-coated steel pipes connected to each other via the coating resin layer connecting portion 20b. A steel pipe bundle 20 (see FIG. 9) is coupled by fitting the covering resin layer connecting portion 20 b into the groove 9.

Further, the joint made of synthetic resin according to the invention of claim 7 is also integrally formed with a plurality of fitting cylinders each having a fitting hole having a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and adhered is fitted. The resin-coated steel pipes fitted in the fitting holes are bonded to each other, and are implemented as synthetic resin joints used for assembling pipe structures and the like. 11A is the same as the gist configuration of the joint of the invention described in Item 4, but does not have the extension piece 8 and
In Examples C to C, two fitting cylinders 3 whose axes are used in a horizontal direction with respect to the pipe structure are respectively arranged in parallel in the up-down direction of the pipe structure, and are arranged vertically. The fitting cylinders 3, 3 are formed as a plurality of connecting fitting cylinders that are communicated via a groove 9 in a form in which each adjacent cylinder wall is partially cut away.

Therefore, the plurality of connecting fitting cylinders 3
The spacing between the fitting holes 1 and 1 (for example, 3
4 mm), the same number of resin-coated steel pipes are arranged vertically in parallel, and a plurality of connected resin-coated steel pipe bundles 20 (see FIG. 9) connected to each other via the coating resin layer connecting portions are formed by the coating. The resin layer connecting portion is fitted into the groove portion 9 and joined.

Furthermore, one of a plurality of connecting fitting cylinders 3 whose shaft cores are used in a horizontal direction to the pipe structure,
For example, in the embodiment of FIGS. 11A to 11C, the diameter of the upper fitting hole 1 is the outer diameter (for example, 28 m) of the resin-coated steel pipe fitted therein.
m). Other fitting cylinders, FIGS.
In the embodiment of C, the center of each of the two semicircles having a diameter equal to the outer diameter of the resin-coated steel pipe fitted into the fitting hole of the lower fitting hole 1 is slightly spaced from each other in the vertical direction. (For example, 0.6 mm), it is formed in an oval with large dimensions. 12A and 12B show an embodiment of a joint for connecting the resin-coated steel pipe bundle 20 in a straight line, and also have an interval S. In the inventions according to the sixth and seventh aspects, since the extension piece 8 is not provided, the horizontal fitting cylinder 3 does not necessarily have the dead end stepped portion 7A.
Or, the dead end wall 7B is not required. In any case, the effects of the inventions of claims 6 and 7 are the same as those of the inventions of claims 3 and 4, except that the extension piece 8 is not provided.

[0056]

The synthetic resin joint according to the first to fourth aspects of the present invention is suitably used for carrying out the method for assembling a pipe structure according to the fifth aspect of the present invention. The joining work with the material can be performed efficiently, quickly and efficiently. Further, in the invention according to claim 5, a flat vertical frame can be used for a part of the column group in one unit, and a narrow space can be used.
It is possible to assemble it in a space and to store the required number of columns.

According to the sixth and seventh aspects of the present invention,
The invention according to claim 6 is, even if not suitable for carrying out the method for assembling a pipe structure according to the invention described in claim 6, according to claim 3.
Similar to the described invention, a thick resin-coated steel pipe can be used for the vertical column, and a plurality of connected resin-coated steel pipe bundles which are thin but have excellent load-bearing performance and rigidity can be used for the horizontal girder and / or beam. , Reducing the three-dimensional space occupied by the pipe structure,
The effect of expanding the effective space and effective use in the structure can be obtained. According to the seventh aspect of the invention, similarly to the fourth aspect of the invention, the bonding strength is maintained in the connection between the plurality of connecting fitting cylinders and the plurality of connecting resin-coated steel pipe bundles.

[Brief description of the drawings]

FIGS. 1A, 1B, and 1C are a side view, a partially broken front view, and a plan view showing an embodiment of a joint according to the present invention.

FIGS. 2A, 2B, and 2C are a side view, a partially cutaway front view, and a plan view showing different embodiments of the joint of the present invention.

FIGS. 3A, 3B, and 3C are a side view, a partially broken front view, and a plan view showing different embodiments of the joint of the present invention.

FIGS. 4A, 4B, and 4C are a partially broken side view, a partially broken front view, and a partially broken plan view showing different embodiments of the joint of the present invention.

FIGS. 5A, 5B and 5C are partially broken side views and partially broken front views showing different embodiments of the joint of the present invention;
FIG.

6A and 6B are a front view and a side view for explaining a method of assembling a pipe structure according to the fifth aspect of the present invention.

FIG. 7 is an enlarged view of a part A of FIG. 6A.

FIG. 8 is a perspective view illustrating a part of an embodiment in which the invention described in claim 5 is applied to a multi-stage roller conveyor shelf.

FIGS. 9A and 9B are a side view and a front view, respectively, showing a plurality of connected resin-coated steel pipe bundles.

FIGS. 10A, 10B, and 10C are a partially broken side view, a partially broken front view, and a partially broken plan view showing different embodiments of the joint of the present invention.

FIGS. 11A, 11B, and 11C are a side view, a partially broken front view, and a plan view showing different embodiments of the joint of the present invention.

FIGS. 12A and 12B are front views of a joint according to a different embodiment of the present invention, showing a side surface and a partly broken portion.

FIG. 13 is a perspective view showing a use state of a conventional joint.

FIGS. 14A and 14B are perspective views showing states of use of different conventional joints.

FIG. 15 is a perspective view showing a use state of a conventional different joint.

FIG. 16 is a conceptual diagram illustrating a method of assembling a shelf as a conventional pipe structure.

17A and 17B are perspective views for explaining a method of assembling a conventional bonsai shelf (plant stand).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fitting hole 2 Fitting hole 3 Fitting cylinder 4 Fitting cylinder 7A Dead end step (dead end stopper) 7B Dead end wall (dead end stopper) 7C Dead end step (dead end stopper) 8 Extension piece 9 Groove 13 Vertical frame 14 Connecting material (Resin coated steel pipe) 20b Coated resin layer connecting part 20 Resin coated steel pipe bundle

Continuation of the front page (72) Inventor Asao Masada 2-4-1 Oga, Shizuoka-shi, Shizuoka Prefecture F-term in Yazaki Kako Co., Ltd. (reference) 3J024 AA31 AA32 AA34 BB02 BB04 CA18 CA24 3J039 AA08 BB01 BB03 LA02 MA03

Claims (8)

[Claims] A plurality of fitting cylinders each having a fitting hole of a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and adhered are fitted integrally in a crossed arrangement, and are connected to the fitting hole. The fitted resin-coated steel pipe is bonded by bonding and used for assembling a pipe structure or the like. In a synthetic resin joint, (a) a fitting cylinder whose axis is used in a vertical direction to the pipe structure; And a non-penetrating fitting cylinder having a dead end stopper located at the back of the fitting hole and connected in a cross-shaped arrangement to the pipe structure in a horizontal direction, and (b) the shaft core. In the non-penetrating fitting cylinder used in the horizontal direction, an extension piece in a form of extending the cylinder wall of the fitting cylinder projects from the lower half of the end face of the fitting port forming the entrance of the fitting hole. , A joint made of synthetic resin. 2. A plurality of fitting cylinders each having a fitting hole of a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and adhered are integrally connected in a cross-shaped arrangement, and are connected to the fitting hole. The fitted resin-coated steel pipe is bonded by bonding and used for assembling a pipe structure or the like. (A) Fitting of a fitting cylinder whose axis is used in a vertical direction to the pipe structure The hole is penetrated, and a non-penetrating fitting cylinder having a dead end stopper located at the back of the fitting hole and having an axial center used for the pipe structure in a horizontal direction to the same pipe structure is cross-shaped. (B) the cylinder of the fitting cylinder from the lower half of the end face of the cylinder opening forming the entrance of the fitting hole in the non-through fitting cylinder in which the axis is used in the horizontal direction; A joint made of synthetic resin, characterized in that an extension piece extending from the wall is protruded. 3. A plurality of fitting cylinders each having a fitting hole having a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and bonded is fitted integrally in a cross-shaped arrangement, and is connected to the fitting hole. The fitted resin-coated steel pipe is bonded by bonding and used for assembling a pipe structure or the like. In a synthetic resin joint, (a) a fitting cylinder whose axis is used in a vertical direction to the pipe structure; A non-penetrating fitting cylinder having a dead end stopper located at the back of the fitting hole with the shaft core used in the horizontal direction to the pipe structure, the respective cylinder walls being connected to each other in a three-dimensional crossed arrangement. (B) a form in which the cylindrical wall of the fitting tube extends from the lower half of the end face of the fitting opening of the non-through fitting tube in which the shaft core is used in the horizontal direction. (C) The axis of the pipe is oriented vertically to the pipe structure. The diameter of the fitting hole of the fitting cylinder used is large, a thick resin-coated steel pipe is joined, the shaft core is used in the horizontal direction to the pipe structure, and the dead end of the fitting hole stops at the back of the fitting hole and has a non-penetrating wall The diameter of the fitting hole in the fitting cylinder is small, and a thin resin-coated steel pipe is connected. (D) The non-penetrating fitting cylinder whose axis is used in a horizontal direction to a pipe structure is the same pipe structure. A plurality of objects are arranged in parallel in the vertical direction,
The upper and lower non-penetrating fitting cylinders are configured as a plurality of connecting fitting cylinders that are communicated via a groove in a form in which each adjacent cylinder wall is partially cut away. A plurality of resin-coated steel pipes are arranged in parallel with each other at intervals so as to fit into the individual connection-type fitting cylinder, and a plurality of resin-coated steel pipe bundles connected to each other via the coating resin layer connecting portion. A joint made of a synthetic resin, wherein the joint portion of the covering resin layer is fitted into the groove portion and joined. 4. A plurality of fitting cylinders each having a fitting hole of a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and adhered are integrally connected in a cross-shaped arrangement, and are connected to the fitting hole. The fitted resin-coated steel pipe is bonded by bonding and used for assembling a pipe structure or the like. (A) Fitting of a fitting cylinder whose axis is used in a vertical direction to the pipe structure The hole is penetrated, and for this fitting tube, a non-penetrating fitting cylinder having a dead end stopper whose axial center is used in a horizontal direction to the pipe structure and located at the back of the fitting hole is provided for each of the fitting tubes. That the cylinder walls are joined in a three-dimensional cross-shaped arrangement,
(B) An extension piece having a form in which the cylindrical wall of the fitting cylinder extends from the lower half of the end face of the fitting opening of the non-penetrating fitting cylinder whose horizontal axis is used in the horizontal direction. (C) The diameter of the fitting hole of the fitting cylinder whose shaft is used in the vertical direction to the pipe structure is large, and a thick resin-coated steel pipe is connected to the pipe structure. (D) pipe structure in which the diameter of the fitting hole in the non-penetrating fitting cylinder having a dead end deep in the fitting hole and the wall thereof being used in the horizontal direction and having a small wall is small, and a thin resin-coated steel pipe is connected; A plurality of the non-penetrating fitting cylinders each having a helical axis used in a horizontal direction are arranged in parallel in a vertical direction of the pipe structure, and the non-penetrating fitting cylinders arranged vertically are each other. Constructed as a plurality of connected fitting cylinders that are communicated through grooves formed by partially cutting adjacent cylinder walls A plurality of resin-coated steel pipes are vertically arranged in parallel at an interval fitted to the plurality of connected fitting cylinders, and the plurality of resin-coated steel pipes are connected to each other via the coating resin layer connecting portion. Wherein the resin-coated steel pipe bundle is joined by fitting the connection portion of the coating resin layer into the groove portion. 5. A fitting hole in a non-penetrating fitting cylinder having a plurality of joints whose shaft cores are used in a horizontal direction to a pipe structure and having a dead end stopper located at the back of the fitting hole. Has a diameter equivalent to the outer diameter of the resin-coated steel pipe fitted to it, and the other fitting holes have a diameter equal to the outer diameter of the resin-coated steel pipe fitted to it, and a width in the vertical direction is slightly smaller. 4. The method according to claim 3, wherein the first electrode is formed in a large size.
Or the joint made of synthetic resin described in 4. 6. A resin-coated steel pipe having a surface coated with a synthetic resin and bonded to each fitting tube of a synthetic resin joint in which a plurality of fitting tubes are integrally connected in a cross-shaped arrangement and bonded by bonding. In the method for assembling a pipe structure, A) The pipe structure is a group of flat vertical frames in which a plurality of resin-coated steel pipes as vertical supports are connected to a plurality of resin-coated steel pipes as horizontal connecting members by joints made of synthetic resin. And a group of a plurality of resin-coated steel pipes as connecting members for connecting the vertical frames to each other in the horizontal direction. B) Connecting each of the vertical frames to the resin-coated steel pipe as the connecting material. In the position, the shaft core is used in the horizontal direction, and an extension piece extending from the lower half of the end face of the cylinder mouth, which is the entrance of the fitting hole, extends from the lower half portion of the fitting cylinder, and the fitting hole is formed. A non-penetrating fitting cylinder with a dead end stopper C) fitting one end of a resin-coated steel pipe as a connecting material to the horizontal non-penetrating fitting cylinder in the first vertical frame in the assembling order; and D) the connecting material. To the other end side of the resin-coated steel pipe, the assembling order roughly adjusted the position of each of the non-penetrating fitting cylinders in the horizontal direction in the second vertical frame, and was slightly inclined rearward with the lower end of the vertical frame as a fulcrum. From the posture, in order from the horizontal non-penetrating fitting cylinder located at the lowermost stage in the same vertical frame to the non-penetrating fitting cylinder sequentially located at the upper stage, on the extension piece of each non-penetrating fitting cylinder E) adding the other end of the resin-coated steel pipe as the connecting member and proceeding with the fitting operation; and E) non-penetrating fitting in the horizontal direction between the other end of the resin-coated steel pipe as the connecting member and the second-order vertical frame. At the stage when the fitting operation with the cylinder is completed, the vertical And F) the non-penetrating fitting cylinders in the horizontal direction of each of the first and second vertical frames and the connecting member fitted thereto. A method of assembling a pipe structure, characterized by injecting an adhesive liquid into a fitting portion with a resin-coated steel pipe and bonding the same to proceed with assembly. 7. A plurality of fitting cylinders each having a fitting hole of a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and adhered are integrally connected in a cross-shaped arrangement. A synthetic resin joint in which a fitted resin-coated steel pipe is joined by bonding and provided for assembling a pipe structure or the like, wherein (a) a fitting cylinder whose axis is used in a vertical direction to the pipe structure; A fitting tube whose axis is used in a horizontal direction to the pipe structure is formed by connecting the respective cylinder walls to each other in a three-dimensional intersecting arrangement; The diameter of the fitting hole of the fitting tube used in the vertical direction is large, a thick resin-coated steel pipe is connected, and the fitting is performed in the fitting tube in which the axis is used in the horizontal direction to the pipe structure. The diameter of the hole is small,
A thin resin-coated steel pipe is connected; (c) a plurality of the fitting cylinders whose axes are used in a horizontal direction with respect to the pipe structure are arranged in parallel in a vertical direction of the pipe structure; The fitting cylinders arranged above and below are configured as a plurality of joining fitting cylinders that are communicated via a groove in a form in which each adjacent cylinder wall is partially cut off, and the plurality of joining cylinders are formed. A plurality of resin-coated steel pipes are vertically arranged in parallel at an interval fitted to the fitting cylinder, and a plurality of connected resin-coated steel pipe bundles connected to each other through the coating resin layer connecting portion are formed of the coating resin. A joint made of synthetic resin, characterized in that a layer connecting part is fitted into the groove part and connected. 8. A plurality of fitting cylinders each having a fitting hole having a diameter into which a resin-coated steel pipe whose surface is coated with a synthetic resin and adhered are integrally connected, and the resin coating fitted into the fitting hole is provided. In a synthetic resin joint in which a steel pipe is bonded by bonding and used for assembling a pipe structure or the like, (a) a fitting cylinder whose axis is used in a horizontal direction with respect to the pipe structure is the same as that of the pipe structure. A plurality of fitting cylinders arranged vertically in parallel with each other, and the fitting cylinders arranged above and below are connected to each other through a groove portion in which each adjacent cylinder wall is partially cut away. It is configured as, a plurality of resin-coated steel pipes are arranged vertically in parallel at intervals to be fitted to the plurality of connected fitting cylinders,
A plurality of connected resin-coated steel pipe bundles connected to each other via the coated resin layer connecting portion by fitting the coated resin layer connecting portion into the groove, and (b) connecting a shaft to the pipe structure; The diameter of one fitting hole in a plurality of connecting fitting tubes whose cores are used in the horizontal direction is the same size as the outer diameter of the resin-coated steel pipe fitted therein, and the fitting size of the other fitting tube is The synthetic resin joint characterized in that the joint hole is formed to have a width in the vertical direction and a slightly larger dimension in the vertical direction, with the same diameter as the outer diameter of the resin-coated steel pipe to be fitted therein.