JPS6330173Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in a wiring duct used when wiring electric wires together in electrical equipment or the like.

Conventionally, wiring ducts have generally consisted of a synthetic resin gutter with a U-shaped cross section and a removable synthetic resin lid, or an expandable band that becomes ring-shaped when elastically restored. There are synthetic resin integrally molded products that are arranged on a bottom plate at equal intervals. All of these are formed into straight lines with appropriate lengths.

Therefore, when the wiring direction changes, for example, at right angles, it is necessary to combine two wiring ducts into an L-shape or a T-shape. Wiring wire insertion holes must be formed on the side of the duct, and as a result, it takes a considerable amount of time and effort to install, for example, a wiring duct in a distribution board for electrical equipment. The drawback was that it was difficult to simplify the wiring work because the wiring duct had to be installed beforehand.

The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art by providing a wiring duct which can be installed by bending a single wiring duct, for example at right angles.

Next, the configuration of a first embodiment of the present invention will be explained with reference to FIGS. 1 to 3.

A synthetic resin flexible band 1 is formed by gripping electric wires (not shown) in a bundle from both sides in the direction perpendicular to the longitudinal direction to form a ring shape, separating a part of the circumference so as to be expandable, and overlapping the wires. The band 1
The wires are arranged at regular intervals along the length of the wires. In a wiring duct 3 in which a bottom plate 2 connecting the non-expansion side of the band 1 is integrally molded with the band 1 from synthetic resin, the wiring duct 3 is installed at equal intervals on the bottom plate 2, for example, on the middle plate of a distribution board. Elongated holes 4 for attachment are formed, and the width between the elongated holes 4 of the bottom plate 2 is formed to be very narrow between each band 1, so that the bottom plate 2 can be bent.

Further, an insertion-shaped connecting projection 5 and a socket-shaped guide hole 6 are formed at one end and the other end of the bottom plate 2, and an engaging projection formed on a part of the connecting projection 5 of the two wiring ducts 3 is formed. 7 is a bottom plate 2 forming a guide hole 6;
The connecting protrusion 5 is fitted into the engagement hole 8 formed in a part of the
While ensuring the connection between the guide hole 6 and the guide hole 6,
In this connected state, the two wiring ducts 3 become one long wiring duct 3.

The wiring duct 3 configured as described above has both the rigidity to firmly fix the electric wires and the flexibility to be bent along the surface of the bottom plate 2.

Therefore, this wiring duct 3 can have any length depending on the number of connected wires, and regardless of whether it is connected alone or connected, the wiring duct 3 can be formed at the narrow part 2' of the bottom plate 2 in the direction along the surface of the bottom plate 2, for example at a right angle. It can be easily bent either in the direction or diagonally. Therefore, when laying the wiring duct 3 in a bent manner, no special work is required, and the wiring duct 3 is the same as in the case of straight wiring.
Since the wiring duct 3 can be used as is, the installation work of the wiring duct 3 becomes extremely easy. Furthermore, even if the wall has a corner, the wiring duct 3 can be attached to the wall by twisting the bottom plate 2 across the corner.

In this way, no special work is required to bend and install the wiring duct 3, and after storing the electric wires in the wiring duct 3, the wiring duct 3 can be separated while being bent at a predetermined position while the electric wires are stored in the wiring duct 3. It can be attached to the middle plate of an electric panel, etc., and thereby can significantly increase the efficiency of wiring work, which has traditionally been considered difficult to increase.

Next, FIG. 4 shows a second embodiment of the present invention, in which
In this case, a narrow portion of the bottom plate 9 is made to protrude into a ring formed by a band 11 as a thin partition wall 10 that can be bent along the surface of the bottom plate 9.
This makes it easier to bend the bottom plate 9 along its surface while maintaining its strength, and the partition wall 10 is connected to the band 11.
Wiring work can be further facilitated by using it for dividing internal electric wires. Moreover, since the narrow part does not bend in the direction perpendicular to the surface of the bottom plate 2, when the wiring duct 3 is attached to a wall surface, the bottom plate 2 can be securely fixed without being lifted or distorted. Other than that, the structure, action, and effect are the same as those mentioned above.
This is almost the same as the example.

Next, FIG. 5 shows a third embodiment of the present invention.
In this case, the area between the bands 14 other than the vicinity of the elongated mounting hole 13 of the bottom plate 12 is formed into a narrow mountain shape.
The wiring duct 15 can be easily bent, and the wiring duct 15 can be expanded and contracted in the longitudinal direction, so that the installation of the wiring duct 15 can be easily completed without accurately measuring the dimensions inside the distribution board.
In other respects, the structure, operation, and effects are almost the same as those of the first embodiment.

Next, FIG. 6 shows a fourth embodiment of the present invention. In this case, the structure, function, and effect are similar to those described above, except that the area between the bands 18 other than the vicinity of the elongated mounting hole 17 of the bottom plate 16 can be formed into a narrow wave shape to save material.
This is almost the same as the example.

Next, FIG. 7 shows the fifth embodiment of the present invention,
In this case, the configuration, operation, and effects are similar to those of the third embodiment, except that the area between the bands 21 other than the vicinity of the elongated mounting hole 20 of the bottom plate 19 is formed into a narrow strut shape to make bending even easier. It is almost equivalent to

In this manner, the present invention can achieve both the rigidity that allows the electric wires to be firmly fixed and the flexibility that allows the bottom plate to be bent along its surface. Therefore, the installation of the wiring duct and the wiring work in the electrical equipment are made extremely easy, and the work efficiency is significantly improved.

[Brief explanation of the drawing]

Figures 1 and 2 are perspective views of the first embodiment of the present invention;
Figure 3 is a bottom view of the invention, Figure 4 is a perspective view of the second embodiment of the invention, Figure 5 is a bottom view of the third embodiment of the invention, and Figure 6 is the fourth embodiment of the invention. Bottom view, No. 7
The figure is a bottom view of the fifth embodiment of the present invention. 1, 11, 14, 18, 21...band, 2,
9, 12, 16, 19... Bottom plate, 2'... Narrow part, 3, 15... Wiring duct, 4, 13, 1
7, 20... Long hole, 10... Partition wall.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A flexible band made of synthetic resin that can be partially expanded on the circumference, which grips electric wires so as to bundle them from both sides in the direction perpendicular to their longitudinal length to form a ring shape. The electric wires to be twisted and bundled are arranged at arbitrary intervals along the longitudinal direction, and a synthetic resin bottom plate that connects the opposite side of the band and is integrally formed with the band is arranged at arbitrary intervals in the longitudinal direction of the bottom plate. 1. A wiring duct, characterized in that the wiring duct is alternately constituted by wide portions in which attachment holes are formed and narrow portions formed in at least a bendable width between the bands. 2. The wiring duct according to claim 1, wherein the narrow width portion is formed in a vertical shape that projects inside the band. 3. The wiring duct according to claim 1, wherein the narrow width portion is formed in a mountain shape or a wave shape along the plane of the bottom plate. 4. The wiring duct according to claim 1, wherein the narrow width portion is formed within the plane of the bottom plate and inclined with respect to the longitudinal direction of the bottom plate.