JP2001324056A - Extruded structural angle for piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an extruded structural angle for piping capable of preventing contamination of dust and free to efficiently and precisely arrange branch pipes, etc. SOLUTION: A groove 10c is provided along overall length of a pair of thick flat parts 10b, 10b in their respective longitudinal direction on an aluminum alloy made extruded structural angle 10 for piping having a hollow cylindrical part 10a, a pair of the thick flat parts 10b, 10b along overall length in the longitudinal direction of an outer peripheral part and a uniform cross section along overall length in the longitudinal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extruded profile for piping used for air piping, hydraulic piping and the like.

[0002]

2. Description of the Related Art Various pipes such as air pipes and hydraulic pipes are installed in facilities, equipment, machine tools and the like. Generally, carbon steel pipes for pipes (SGP) (JIS G3452) and aluminum and aluminum alloy seamless pipes (JIS H4080) as shown in FIG. 6 are used for these pipes. These tubes 1 shown in FIG. 6 are tubes having a circular cross section.

[0003] When a branch pipe or a branch pipe is constructed by using the pipe 1 shown in FIG. 6, two conventional methods have been used. One of them is as shown in FIG. 7, in which the tube 1 is cut to a required length, and a screw is formed at both ends of the short tube 1 'cut to the required length. 2 are screwed together to connect the short tube 1 '. The other is as shown in FIG. 8, in which a hole is made in a required portion of the tube 1 and a socket 3 is attached to the hole by welding.

[0004]

By the way, in the method of connecting the short pipe 1 'through the tee 2 as shown in FIG.
There has been a problem that the pitch dimension of the tee 2, that is, the pitch dimension of the branch pipe (not shown) is not uniform.

In the method of making a hole in a required portion of the pipe 1 as shown in FIG. 8 and welding the socket 3 to the hole, distortion occurs in the pipe 1 due to welding. There is a problem that not only time and cost are required but also accuracy may not be sufficiently secured.

Further, in any of the methods shown in FIGS. 7 and 8, the number of processing steps is large, the removal of dust after processing (flushing) is required, and a large amount of cost is required. However, there is a problem that air, oil, etc. leak, and the appearance is poor, and in some cases, painting is required.

Therefore, the present invention solves the above-mentioned problems of the prior art, prevents the entry of dust, and provides an extruded pipe member for pipes, such as a branch pipe or a branch pipe, capable of efficient and accurate piping. It is intended to provide.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a pipe for a pipe having a hollow portion, at least one thick flat portion over the entire length in the outer peripheral portion, and a uniform cross section over the entire length in the longitudinal direction. Extruded profile.

In the present invention, it is preferable that the hollow portion is an extruded profile for piping constituted by a pair of hollow portions that do not communicate with each other.

[0010] In the present invention, it is preferable that the pipe is an extruded profile for piping in which a groove is provided over the entire length of the thick flat portion in the longitudinal direction.

In the present invention, a pipe having a thick flat portion different from the thick flat portion over the entire length of the outer peripheral portion in the longitudinal direction, and a dovetail groove provided over the entire length of the thick flat portion in the longitudinal direction. It is preferably an extruded profile.

[0012]

When the branch pipe or the branch pipe is attached, the strength of the female screw for screwing the nipple can be sufficiently secured, and no distortion occurs when the socket is welded.

[0013] In the case of using an extruded profile for piping in which the hollow portions are constituted by a pair of hollow portions that do not communicate with each other, one hollow portion serves as a supply-side passage and the other hollow portion serves as a return-side passage. Therefore, the piping becomes compact.

In the case where the groove is provided over the entire length of the thick flat portion in the longitudinal direction, the position of the internal thread or the hole provided at the position where the branch pipe or the branch pipe is to be attached can be easily marked by the groove of the thick flat portion. And it can be accurate. Therefore, the mounting position (pitch) of the branch pipe or the branch pipe is accurate.

In the case where there is a thick flat portion provided with a dovetail groove in addition to the thick flat portion provided with a groove, the fitting for the pipe can be attached to an arbitrary position using the dovetail groove. , And the construction of the piping becomes easier.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of an aluminum alloy extruded profile 10 for piping according to one embodiment of the present invention.
The extruded profile 10 made of aluminum alloy for piping shown in FIG.
A6063 (JIS) aluminum alloy, formed by extrusion. The shape has a hollow cylindrical portion 10a at the center, a pair of thick flat portions 10b, 10b over the entire length of the outer periphery in the longitudinal direction, and a uniform cross section over the entire length in the longitudinal direction. It is.
A groove 10c is provided in each of the pair of thick flat portions 10b, 10b over the entire length in the longitudinal direction. The groove 10c is formed by an aluminum alloy extruded profile 10 for piping.
It is used when marking a position where a branch pipe (not shown) is to be attached by marking.

FIG. 2 is a perspective view showing a state in which a nipple 12 is attached to the aluminum alloy extruded profile 10 for piping shown in FIG. As shown in FIG. 2, when a branch pipe is constructed using the aluminum alloy extruded profile 10 for piping, a nipple is connected to the aluminum alloy extruded profile 10 for piping to connect a branch pipe (not shown). 12 is screwed.
Nipple 12 for extruded aluminum alloy profile 10 for piping
The female thread 10d is provided on the thick flat portions 10b. At this time, since the flat portions 10b, 10b are thick, the strength of the female screw 10d can be sufficiently ensured.
In addition, as shown in FIG.
When screws are screwed together, a screw insert 14 such as Helisert (registered trademark) can be screwed into the screw to further secure the strength.

When the female thread 10d is provided on the thick flat portions 10b, the position where the female thread 10d is provided is marked by marking.
Can be easily and accurately performed.

Although not shown, the thick flat portion 10
A hole (not shown) may be formed in each of b and 10b, a socket (not shown) may be welded to the position of the hole, and a branch pipe (not shown) may be connected through the socket. At this time, the flat part 1
Since 0b and 10b are thick, distortion due to welding does not occur. Also, when making holes in the thick flat portions 10b, 10b, the positions where the holes are made are marked by marking.
This marking can be easily and accurately performed by using the groove 10c.

The aluminum alloy extruded profile 10 for piping is not only air piping, but also hydraulic piping, water piping,
Can be used for various gas pipes.

The aluminum alloy extruded profile 10 for piping can be prevented from rusting by alumite treatment.

FIG. 3 is a perspective view of an aluminum alloy extruded profile 10 'for piping according to another embodiment of the present invention.
The difference between the aluminum alloy extruded profile 10 ′ for piping shown in FIG. 3 and the aluminum alloy extruded profile 10 for piping shown in FIG. 1 is that a pair of hollow cylindrical portions 10 ′ whose hollow portions are parallel and do not communicate with each other. a, 10'a, and the other points are the same as the extruded profile 10 made of aluminum alloy for piping shown in FIG. 1. Therefore, the extruded profile 10 made of aluminum alloy for piping shown in FIG. It has the same operation and effect as. However, since the extruded profile 10 'made of aluminum alloy for piping shown in FIG. 3 is composed of a pair of hollow cylindrical portions 10'a, 10'a whose hollow portions are parallel to each other and do not communicate with each other, this aluminum alloy for piping is used. When the extruded profile 10 ′ is used as air piping, a pair of hollow cylindrical portions 1
0′a, 10′a, one hollow cylindrical portion 10′a serves as an air supply side passage (supply side passage), and the other hollow cylindrical portion 1 ′
0'a is an exhaust-side passage (return-side passage). Therefore, the aluminum alloy extruded profile 1 for piping shown in FIG.
If 0 'is used, the supply pipe (supply-side pipe) and the exhaust pipe (return-side pipe) can be configured with one pipe, so that there is an advantage that the pipe is compact.

FIG. 4 is a sectional view of an aluminum alloy extruded profile 10 "for piping according to still another embodiment of the present invention. FIG. 5 is an aluminum alloy extruded profile 10" for piping shown in FIG. It is a perspective view of. The difference between the aluminum alloy extruded profile 10 ″ for piping shown in FIGS. 4 and 5 and the aluminum alloy extruded profile 10 for piping shown in FIG. Flat part 1
0 "b, and has a thick flat portion 10" e different from the thick flat portion 10 "b over the entire length in the longitudinal direction of the outer peripheral portion. A dovetail groove 10 "f is provided over the entire length in the direction, and the other points are the same as the aluminum alloy extruded profile 10 for piping shown in FIG. 1, so the aluminum alloy extruded profile for piping shown in FIG. It has the same operation and effect as 10. However, FIG.
Since the extruded profile 10 ″ made of aluminum alloy for piping shown in FIG. 5 has a dovetail groove 10 ″ f over the entire length in the longitudinal direction of the thick flat portion 10 ″ e, the aluminum alloy for piping shown in FIG. 4 and FIG. The use of the extruded shaped material 10 "has an advantage that the pipe can be easily installed because the pipe fitting (not shown) can be mounted at an arbitrary position using the dovetail groove 10" f.

The extruded profiles for pipes 10, 10 ', and 10 "according to the embodiment of the present invention each have a hollow hollow portion, but the extruded profile for pipes of the present invention has a hollow portion. The shape is not limited to a cylindrical shape, and may be, for example, an arbitrary shape such as an ellipse or a square in cross section.

Although the extruded profiles for piping 10, 10 ', 10 "according to the embodiment of the present invention are all made of an aluminum alloy, the extruded profiles for piping of the present invention are limited to those made of an aluminum alloy. Instead, any material that can be extruded may be used.

[0027]

According to the extruded profile for piping of the present invention, the following effects are obtained. (1) Since the extruded profile for piping is an extrusion process, the production of the extruded profile for piping itself is simple. (2) Since there is no connection in the extruded profile for piping itself, air, oil and the like do not leak from the connection. (3) Since a thick flat portion is provided, when a branch pipe or a branch pipe is attached, the strength of the female screw for screwing the nipple can be sufficiently ensured, and no distortion occurs when the socket is welded. (4) The marking of the position of the internal thread or hole provided at the position where the branch pipe or the branch pipe is to be attached can be made simple and accurate by the groove of the thick flat portion. Therefore, the mounting position (pitch) of the branch pipe or the branch pipe is accurate. (5) In pipe construction of a branch pipe, a branch pipe, or the like, the number of parts to be used is smaller than that of a conventional pipe, and the number of processing steps is simple and simple. (6) The flushing (washing) after the piping work is simple. (7) Appearance after piping installation is beautiful. (8) In the case of using an extruded profile for a pipe composed of a pair of hollow portions in which the hollow portions do not communicate with each other, one hollow portion serves as a supply-side passage, and the other hollow portion serves as a return-side passage. Therefore, the piping becomes compact. (9) In the case where a thick flat portion provided with a dovetail groove is provided in addition to the thick flat portion provided with a groove, the pipe fitting can be attached to an arbitrary position using the dovetail groove. , And the construction of the piping becomes easier. (10) When the extruded profile for a pipe is made of an aluminum alloy, rust can be prevented from being generated by alumite treatment.

[Brief description of the drawings]

FIG. 1 is a perspective view of an aluminum alloy extruded profile for piping according to one embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which a nipple is attached to the aluminum alloy extruded profile for piping shown in FIG.

FIG. 3 is a perspective view of an aluminum alloy extruded profile for piping according to another embodiment of the present invention.

FIG. 4 is a cross-sectional view of an aluminum alloy extruded profile for piping according to still another embodiment of the present invention.

5 is a perspective view of the aluminum alloy extruded profile for piping shown in FIG. 4;

FIG. 6 is a perspective view of a conventional pipe for piping.

FIG. 7 is a perspective view showing a state where a tee is attached using the piping pipe shown in FIG. 6;

FIG. 8 is a perspective view showing a state where a socket is attached to the piping pipe shown in FIG. 6;

[Explanation of symbols]

10, 10 ', 10 "... Extruded profile made of aluminum alloy for piping 10a, 10'a, 10" a ... Hollow cylindrical part 10b, 10'b, 10 "b ... Thick flat part 10c, 10'c, 10 "c ... groove 10d ... female thread 10" e ... thick flat part 10 "f ... dovetail groove 12 ... nipple 14 ... screw insert

Claims (4)

[Claims] 1. An extruded profile for piping, having a hollow portion, at least one thick flat portion over the entire length in the longitudinal direction of the outer peripheral portion, and having a uniform cross section over the entire length in the longitudinal direction. . 2. The extruded profile for piping according to claim 1, wherein the hollow portion is constituted by a pair of hollow portions that do not communicate with each other. 3. The extruded profile for piping according to claim 1, wherein a groove is provided over the entire length of the thick flat portion in the longitudinal direction. 4. A thick flat portion which is different from the thick flat portion over the entire length of the outer peripheral portion in the longitudinal direction, and a dovetail groove is provided over the entire length of the thick flat portion in the longitudinal direction. The extruded profile for piping according to any one of claims 1, 2, and 3.