JPH11344156A - Bending processing method for piping and piping fixer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bending executing method for a piping which brings about a small cost and improved executability, and is adapted not only to a case where a piping is substantially perpendicularly arranged but also, for instance, to a case where the piping is arranged to a stepped surface. SOLUTION: In order to bend a piping 1 to fix to piping attachment surfaces 2, 3, a piping fixture 4 is used which is provided with pipe holding parts 42 and attaching portions 43 on both ends of a bendable connection piece 41. The fixing process is composed of a first step where the piping 1 is held by the hipe holding parts 42 on both ends of the connection piece 41 of the piping fixture 4, and a second step where the attaching portions 43 on both ends of the connection piece 41 of the piping fixture 4 are attached to the piping attachment surface 2, 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe bending method and a pipe fixture suitable for use in a sheath pipe method.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Patent Application Laid-Open No. 9-152062
As described in Japanese Unexamined Patent Publication (Kokai) No. H10-209, a method of bending a pipe using a holder is known. That is, as shown in FIG. 4, when a pipe (a) such as a sheath pipe is bent along the orthogonal concrete mounting surfaces (b) and (c), the holder body (d) having a curved arc-shaped cross section is used. ) Is provided with a locking portion (e), and by inserting a wedge member (f) into the locking portion (e), the pipe (a) can be held in the holder body (d), and the holder body (d) Using a holder (h) provided with a support leg (g), a pipe (a) is bent and attached to the holder body (d), and a wedge member (f) is attached to the locking portion (e). ) Is inserted so that the pipe (a) is held in the holder body (d), and the support legs (g) provided on the holder body (d) are attached to one concrete mounting surface (c). Was.

[0003]

However, in the pipe bending method described in the above-mentioned Japanese Patent Application Laid-Open No. 9-152062 or the like, the pipe is engaged with the holder main body (d) having a curved arc-shaped cross section. Part (e) is provided, and the locking part (e)
Holder body (d) by inserting a wedge member (f) into the
Since the holder (h) can hold the pipe (a) and the support body (d) is provided with the support legs (g), the holder (h) has a complicated structure and is manufactured. In addition to the high cost, the work of attaching the pipe (a) to the holder body (d) having an arc-shaped cross section and the wedge member to the locking portion (e) (f)
Insertion work was necessary, and there was a drawback that the workability was poor.

In the above-described conventional pipe bending method, a pipe (a) is formed by using a holder (h).
However, there was a drawback that even if the method could be applied to bend at substantially right angles, it could not be applied to other cases, for example, to an installation surface having a step.

[0005] The present invention has been made in view of the above-mentioned problems in the conventional pipe bending method,
The purpose is to solve the above problem, not much cost, good workability, not only in the case of piping at almost right angles, for example, for installation on the mounting surface with a step It is an object of the present invention to provide a pipe bending method that can respond.

[0006]

In order to achieve the above object, a method for bending a pipe according to the present invention according to claim 1 is as follows.
In bending the pipe and fixing it to the pipe mounting surface, use a pipe fixing tool provided with a pipe holding portion and a mounting portion at both ends of a bendable connecting piece, and use a pipe holding portion at both ends of the connecting piece of the pipe fixing tool. And a step of attaching mounting portions at both ends of the connecting piece of the pipe fixing device to the pipe mounting surface.

According to a second aspect of the present invention, there is provided a pipe fixing device used in the pipe bending method according to the first aspect, wherein a pipe holding portion is provided at both ends of a bendable connecting piece. And an attachment portion.

According to the first aspect of the present invention, a step of holding the pipe at pipe holding portions at both ends of the connecting piece of the pipe fixing tool;
The step of mounting the mounting portions at both ends of the connecting piece of the pipe fixing tool to the pipe mounting surface may be performed in any step.

In the present invention, the material of the pipe fixing member is not particularly limited as long as it can be bent by elastic deformation or plastic deformation, and is not particularly limited. For example, ordinary steel, stainless steel, aluminum, Metals such as copper and copper alloys, hard vinyl chloride resins, and synthetic resins such as polyethylene, polypropylene, and polycarbonate can be used, and those obtained by appropriately combining these materials can also be used.

In the method for bending a pipe according to the first aspect of the present invention, a pipe fixing tool having a pipe holding portion and a mounting portion at both ends of a bendable connecting piece is used. In the step of holding the pipe in the pipe holding portions at both ends of the connecting piece of the pipe fixing tool, the pipe can be attached to the pipe fixing tool only by holding the pipe in the pipe holding portion.

In the step of mounting the mounting portions at both ends of the connecting piece of the pipe fixing member to the pipe mounting surface, the connecting piece can be bent along the mounting surface so as to be along the mounting surface, and the pipe is installed at a right angle. It can be applied not only to the case but also to the installation on the stepped mounting surface.

Further, the pipe fixing device has a structure in which a tube holding portion and a mounting portion are provided at both ends of a bendable connecting piece, and is obtained, for example, only by processing a steel plate into a sheet metal, so that the cost is not increased.

Further, in the pipe fixing device of the present invention, since the pipe holding portion and the mounting portion are provided at both ends of the bendable connecting piece, for example, a steel plate is subjected to sheet metal processing. Because it can be obtained only, the cost is not much.

Further, by bending the connecting piece of the pipe fixing tool along the mounting surface, it is possible to cope with not only the case where the pipe is formed at a right angle but also the mounting surface having a step.

[0015]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing one embodiment of the pipe bending method of the present invention.

In FIG. 1, 1 is a bellows-shaped sheath tube, 2 is one mounting surface on which the sheath tube 1 is to be mounted, 3 is the other mounting surface consisting of a concrete floor surface, and both mounting surfaces 2, 3
Are orthogonal. Reference numeral 4 denotes a pipe fixing tool used for fixing the sheath tube 1 according to the method of the present invention. Piping fixture 4
As shown in an enlarged view in FIG. 2, a pipe holding portion 42 and a mounting portion 43 are provided at both ends of a bendable connection piece 41.

As shown in FIG. 2, the connecting piece 41 is a rectangular flat plate, and can be freely bent into an arbitrary shape. In the tube holding portion 42, curved pieces 421, 421 are erected at both ends of the connecting piece 41 from both sides of the connecting piece 41, and an opening 422 is provided between the distal ends of both curved pieces 421, 421. It is configured. Reference numeral 423 denotes a protrusion protruding from the inner surface of the curved piece 421. The protrusion 423 can engage with a concave groove on the surface of the sheath tube 1 when the sheath tube 1 is held.

The mounting portion 43 has a rectangular flat plate shape, and is integrally provided at both ends of the connecting piece 41 to form two mounting holes 43.
1 is drilled. The pipe fixture 4 is manufactured by sheet metal working a single steel plate.

In order to attach the sheath tube 1 to the attachment surfaces 2 and 3 by the method of the present invention using such a pipe fixing tool 4, the curved pieces 421, 421 of the pipe holding portion 42 of the pipe fixing tool 4 are elastically attached. The opening 422 is expanded by deformation and the expanded opening 42 is opened.
As shown in FIG. 1 by inserting the sheath tube 1 from 2,
The tube holding portion 42 holds the sheath tube 1.

Next, as shown in FIG.
The connecting piece 4 of the sheath tube 1 and the pipe fixture 4 according to the angle between them.
1 is bent so that the mounting portion 43 of the pipe fixing device 4 is
Through the mounting hole 431 of the mounting portion 43 and the screw 4
The sheath tube 1 and the pipe fixing tool 4 are mounted on the mounting surfaces 2 and 3 by screwing the tube 4.

Thereafter, the water pipe 5 is inserted into the sheath pipe 1 mounted on the mounting surfaces 2 and 3 as described above, and the faucet fitting 6 is mounted on the upper end of the water pipe 5.

In the method for bending a pipe according to the present invention shown in FIG. 1, a pipe holding portion 42 is provided at both ends of a bendable connecting piece 41.
Since the pipe fixture 4 provided with the mounting part 43 is used, in the step of holding the sheath tube 1 in the pipe holding part 42 of the pipe fixture 4, the curved piece of the pipe holding part 42 is used. 42
1, 421 is elastically deformed to expand the opening 422, and the sheath tube 1 is inserted simply by inserting the sheath tube 1 from the expanded opening 422.
And the sheath tube 1 can be easily attached to the piping fixture 4.

In the step of attaching the mounting portion 43 of the pipe fixing member 4 to the pipe mounting surfaces 2 and 3, the connecting piece 41 may be bent along the mounting surfaces 2 and 3 so as to be along the mounting surfaces 2 and 3. The sheath pipe 1 can be installed at right angles.

Further, the pipe fixing device 4 is a connecting piece 41 which can be bent.
It has a structure in which a tube holding portion 42 and a mounting portion 43 are provided at both ends of the steel plate.
The cost is not great.

FIG. 3 is an explanatory view showing another embodiment of the pipe bending method according to the present invention. In the embodiment shown in FIG. 3, there is a case where there is a step between the mounting surfaces 2a, 3a. As shown in FIG. 3, when there is a step between the mounting surfaces 2a, 3a, the connecting piece 41 of the pipe fixing tool 4 is bent in accordance with the step, and the sheath tube 1 is formed in the same manner as shown in FIG.
Can be attached to the attachment surfaces 2a, 3a.

The relationship between the entire length L of the pipe fixture 4 shown in FIG. 2 and the diameter of the sheath pipe (pipe) is preferably in the range shown in Table 1.
The thickness of the steel plate used for the pipe fixing device 4 is 1.2
The thickness is preferably about 2.3 mm, and the surface is preferably plated.

[0027]

[Table 1]

Although the embodiment of the present invention has been described with reference to the drawings, the configuration of the present invention is not limited to the illustrated embodiment, and design changes within the scope of the present invention may be made. Included in the present invention.

For example, as described in the embodiment shown in FIG. 1, first, the sheath tube 1 is attached to the pipe fixture 4, and then, instead of attaching the pipe fixture 4 and the sheath tube 1 to the attachment surfaces 2, 3, First, the pipe fixing device 4 may be attached to the mounting surfaces 2 and 3, and then the sheath tube 1 may be attached to the pipe fixing device 4 attached to the mounting surfaces 2 and 3.

[0030]

According to the method for bending a pipe according to the first aspect of the present invention, a pipe fixing tool having a pipe holding portion and a mounting portion at both ends of a bendable connecting piece is used. In the step of holding the pipe in the pipe holding portions at both ends of the connecting piece of the pipe fixing tool, the pipe can be attached to the pipe fixing tool only by holding the pipe in the pipe holding portion.

In the step of mounting the mounting portions at both ends of the connecting piece of the pipe fixing device to the pipe mounting surface, the connecting piece can be bent along the mounting surface so as to be along the mounting surface, and the pipe is installed at a right angle. It can be applied not only to the case but also to the installation on the stepped mounting surface.

Further, the pipe fixing device has a structure in which a tube holding portion and a mounting portion are provided at both ends of a bendable connecting piece, and is obtained, for example, only by processing a steel plate into a sheet metal, so that the cost is not increased.

In the pipe fixing device according to the second aspect of the present invention, since the pipe holding portion and the mounting portion are provided at both ends of the bendable connecting piece, for example, a steel plate is subjected to sheet metal processing. Because it can be obtained only, the cost is not much.

Further, by bending the connecting piece of the pipe fixing tool along the mounting surface, it is possible to cope with not only the case where the pipe is mounted at a right angle but also the mounting on a stepped mounting surface.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing one embodiment of a pipe bending method according to the present invention.

FIG. 2 is a perspective view showing an example of a pipe fixture used in the method of the present invention.

FIG. 3 is an explanatory view showing another embodiment of the pipe bending method of the present invention.

FIG. 4 is a perspective view showing an embodiment of a conventional pipe bending method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sheath pipe (piping) 2, 2a, 3, 3a Mounting surface 4 Piping fixture 41 Connecting piece 42 Pipe holding part 43 Mounting part 5 Water pipe 6 Water faucet fitting

Claims (2)

[Claims] When a pipe is bent and fixed to a pipe mounting surface, a pipe fixing tool having a pipe holding portion and a mounting section provided at both ends of a bendable connecting piece is used, and both ends of the connecting piece of the pipe fixing tool are used. A method for bending a pipe, comprising: a step of holding a pipe in a pipe holding section of (1); and a step of mounting mounting sections at both ends of a connecting piece of a pipe fixing device to a pipe mounting surface. 2. A pipe fixing tool used in the pipe bending method according to claim 1, wherein a pipe holding portion and a mounting portion are provided at both ends of a bendable connecting piece. Plumbing fixture.