JPS59156112A - Long bus duct for vertically wiring - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a long path duct for vertical installation, which is installed vertically in buildings such as buildings and factories, and is used as power distribution lines.

(Prior art) When a conventional path duct is used as the main line of a building, as shown in Figure 1, a path duct 1 with a fixed length of approximately 3 m, which is close to the floor height, is connected to a through hole on each floor 2. 3
The path ducts 1 are vertically penetrated and supported by spring hangers 4 on each floor 2, and the upper and lower path ducts 1 are successively connected at joints 5. At this time, in order to absorb the amount of thermal expansion and contraction of each of the ducts 1, plug-in connectors 6 were connected in series at appropriate intervals. Note that 7 is a plug-in branch connector.

Previously, each path duct 1 was connected on-site, so
Connection work is required to form the joint portions 5 at intervals of about 3 m, and the construction is very time-consuming, and the reliability of the connections is often low because the work is done on-site. Also, the conventional /? Since the suduct 1 cannot absorb the amount of expansion and contraction with its body, it has the disadvantage that the conductors of each phase have to be connected to an expansion mechanism 6 that slides into contact with each other to absorb the amount of expansion and contraction.

(Objective of the Invention) An object of the present invention is to provide a long four-wall duct for vertical installation that can reduce the number of connection points on site, omit expansion connections, and is easy to construct.

(Structure of the Invention) The long/quadruple duct for vertical installation according to the present invention has rigid parts and flexible parts alternately provided in the longitudinal direction of a plurality of elastic insulated conductors installed side by side in a stacked state, and in which rigid parts and flexible parts are provided adjacently. The rigid body parts are each connected to each other by tension members.

(Example) Embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in FIGS. 2 to 4, the long path duct 9 for vertical installation of this embodiment has an insulated conductor 10 formed by covering a flexible rectangular conductor 10A with an insulating coating 10B. The insulated conductors 10 are also made longer and stacked in three phases, and the outer periphery of the assembly of these insulated conductors 10 is integrally coated with rigid boxes 11 at intervals in the longitudinal direction. A structure in which a rigid part 12 having a rigid box 11 and not having flexibility and a flexible part 13 not having a rigid box 11 and having flexibility exist alternately in the longitudinal direction. It has become. Further, two tension members 14 are longitudinally attached to these insulated conductors 10 over the entire length, and these tension members 1ζ are fixed to the box 11 of each rigid body part 12 with fixing fittings 15. Therefore, the adjacent rigid body part 1
2 are connected by a tension member 14 with a flexible portion 13 in between. As the tension member 14, for example, a wire rope or a fiber-reinforced plastic wire is used. A plug-in hole portion 16 is provided in the box 11 of each rigid body portion 12, respectively. Note that 17 is a connection box provided at one end of this long path duct 9.

Such a long path duct 9 is manufactured to have a total length of about 50 m, for example. If this length is used as a main line in a general building, one strip length will be sufficient.

When transporting such a long path duct 9, the flexible portion 13 is bent and folded into an S-shape as shown in FIG. 2, so that it can be easily transported as a small package.

FIGS. 5 and 6 show an example in which the long path duct 9 of the present invention is installed vertically as a main line of a building. That is, the long path duct 9 is laid by passing through the through holes 3 of each floor 2 of the building so that each rigid body part 12 passes through each, as shown in the figure. The rigid box 11 is fixed to each floor 2 by directly embedding a fireproof seal 7 made of concrete or the like into the rail. When the long path duct 9 is set up perpendicular to the building, for example, a hoisting wire is lowered from the top floor where it is installed, its lower end is connected to the tension member 14 at the upper end of the long path duct 9, and the hoisting wire is wound up with a winch or the like. so that the long path duct 9 is erected. In this way, the start-up work can be performed without applying tension to the insulated conductor 10, and the long path duct 9 can be protected from tension during installation.

When the long path duct 9 of the present invention is installed vertically in this manner, the flexible portion 13 functions as an expansion, so that the connection of the expansion can be omitted entirely. In the case of B, it is preferable to bend the flexible portion 13 in advance as shown in the figure, since it can easily absorb thermal expansion and contraction. By attaching tension member No. 14, it is possible to prevent the bent portion of the flexible portion 13 from being stretched due to a large tension being applied to the bent portion during erection and installation. Further, when the long nose duct 9 is installed vertically, a large tension is applied to the upper flexible portion 13 due to its own weight, but in the present invention, since the tension member 14 is present, Since no tension is applied directly to the flexible portion 13, the flexible portion 13 can be safely protected.

Note that it is preferable that the flexible portion 13 be protected by appropriate protection means so as not to impair its flexibility.

Alternatively, the tension member 14 may be present only at the flexible portion 13 and both ends may be connected to the rigid body portion 12.

(Effects of the Invention) As explained above, in the long path duct for vertical installation according to the present invention, rigid portions and flexible portions are alternately provided in the longitudinal direction of the plate-shaped insulated conductors installed side by side in a stacked state. Because of the structure, it can be lengthened to any desired length, and even if it is lengthened, it can be folded to make it compact and can be easily transported.

Furthermore, according to the present invention, the number of joints formed at the site can be reduced due to the lengthening, and efficient installation can be achieved. Furthermore, since the flexible portion acts as an expansion, it is possible to omit the connection of extensions and tensions. In addition, especially in the present invention, since the rigid parts on both sides of the flexible part are connected by a tension member, this tension member prevents the large tension from acting on the flexible part due to the increase in own weight due to the lengthening of the part. The flexible portion can be effectively protected during stand-up and installation as well as during use after installation, and the disadvantages associated with longer lengths can be solved.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a conventional path duct installed, FIG. 2 is a front view of an embodiment of the long path duct according to the present invention in a folded state, and FIG. 3 is a sectional view taken along the line X-X in FIG. FIG. 4 is a cut end view taken along the Y-Y line in FIG. 2, FIG. 5 is a sectional view showing an example of a vertically installed state of the long path duct according to the present invention, and FIG. 6 is a flexible portion protected by a tension member. FIG. 2... Floor-13... Through hole, 9... Long path duct, 10... Insulated conductor, 11... Rigid box,
12... Side body part, 13... Flexible part, 14... Tension member. ' Procedural amendment (voluntary) December 2, 1981 Kazuo Wakasugi, Director General of the Kusunoki Agency1, Indication of the case Patent Application No. 58-304132, Name of the invention Long bus duct for vertical installation (529) Koga Denki Kogyo Co., Ltd. 4, Agent: 6th Floor, Bunzan Col., 4-31-6 Shinbashi, Higashi Jj Partial Minato-ku, 105 Higashi JJ, ``Claims,'' ``Detailed Description of the Invention,'' `` In each column 6 of ``Brief Description of Drawings'', the tentative details of the amendments will be corrected as follows. (1) The scope of the % allowance rust request is revised in Attachment 9. (2) Correct "plug-in branch connector" in lines 6 to 4 of page 2 to "plug-in type branch unit for branch connection." (3) “Multiple sheets...” from page 2, line 20 to page 6, line 1
"Insulated conductor" is corrected to "Multiple long insulated conductors arranged in parallel." (4) “Flat conductor 10A” on page 6, lines 10 to 20
...These tension members are corrected as shown below. The long insulated conductor 10, which is formed by covering the long rectangular conductor 10A with an insulating sheath 910B, is longer than that of a conventional fixed-length bus duct, and is arranged in parallel in a stacked state for three phases. Rigid body parts 11 are integrally coated on the outer periphery of the aggregate of these long insulated conductors 10 at intervals in the longitudinal direction, and a rigid body part 12 having these rigid body parts 11 and having no flexibility,
It has a structure in which flexible parts 19, which do not have a rigid body part 11 and have flexibility, exist alternately in the longitudinal direction. In addition, two tension members 14 are vertically attached to these long insulated conductors 10 over the entire length, and these tension members are replaced by "box 11" in the first and sixth lines of page 4. 11” respectively. (6) Page 4, line 7 [Plug-in ball section 1
6J is corrected to "plug-in type branch unit 16 for branch connection". (Force Correct “one rigid box” in line 5 of page 5 to “rigid box”. , (8) Correct “insulated conductor” in line 12 of page 5 to “long insulated conductor” (9) “Multiple sheets...#3” on page 6, lines 17 to 18
"Edge conductor" should be corrected to "Multiple long insulated conductors arranged in parallel." Shout On page 8 @ line 4, "Insulated conductor, 11...rigid box," is replaced with "Long insulated conductor, 11... IIcI! 1 body box,"
”. Above 2, the claim is that rigid parts and flexible parts are provided alternately in the longitudinal direction of the plural disconnected wire conductors arranged in parallel, and the adjacent rigid parts are connected to each other by tension members. A long bus duct for vertical installation, which is characterized by

Claims (1)

[Claims] Rigid parts and flexible parts are provided alternately in the longitudinal direction of a plurality of plate-shaped insulated conductors stacked together, and adjacent rigid parts are connected to each other by tension members. A long path duct for vertical installation.