JP2007312532A - Wiring duct - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiring duct where a member for fixing wiring is not necessary to be attached and a leading part of wiring can easily be fixed with a simple structure. <P>SOLUTION: A wiring support part 1a projected in a longitudinal direction of a cylindrical member 1 is integrally formed in at least one end of the cylindrical member 1 constituting the wiring duct. A binding member 2 binding wiring is engaged with the wiring support part 1a and the leading part of wiring is fixed. Thus, disconnection of wiring resulting from rubbing of wiring and a duct end (aperture edge) due to oscillation can be prevented with such structure. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wiring duct that accommodates cables such as electric wires and signal lines, and more particularly to a wiring duct that can easily fix a lead-out portion of a wiring bundle without increasing the number of parts.

  Wiring ducts (cable ducts) for guiding / accommodating electric wires (cables), signal lines, and the like are disposed under the floor, behind the ceiling and walls of buildings and vehicles. These wiring ducts are generally in the shape of a cylinder that is continuous in the longitudinal direction, and the opening cross section is formed in a circle, an ellipse, a rectangle, a rectangle, or the like. The wiring duct includes an open duct such as a wiring rod.

  In addition, near the end of a wiring duct installed in a place subject to vibration, such as a vehicle or a railway vehicle, a binding member (cable band) for wiring binding called a tie wrap or a cable tie is disposed inside. By fixing the lead-out portion of the inserted wire bundle with this binding member, the wiring is prevented from being cut due to rubbing against the duct end portion (opening edge portion).

FIG. 4 is a view showing the structure of one end of a conventional wiring duct.
The wiring duct 11 is disposed in a portion that cannot be seen from the passenger compartment, such as under the floor, behind the ceiling, or inside a wall surface of a railway vehicle, and is formed by bending a rectangular metal plate and is connected in the longitudinal direction. It is used as. Further, the opening cross section is formed in an oval shape, and a flat plate-like shape having a fixing member 12A having a shape substantially along the outer peripheral surface and two holes 12b on the outer peripheral surface in the vicinity of one end portion 11a. A “wiring support” 12 including the fixing member 12B is disposed.

  This wiring support 12 is provided to prevent the movement (vibration due to vibration) of the lead portion of the electric wire or signal line. The bundling member (tie wrap 2) as shown in FIG. By sequentially inserting the holes 12c and 12c provided in the fixing member 12B so as to make a round around the lead-out portion, and tightening the diameter, the wires inserted therein are fixed to the surface of the fixing member 12B. ing.

In addition, as another configuration example for stabilizing the lead-out portion of the wiring, a configuration (Patent Document 1) provided with a cable band that suppresses flapping noise of the wiring bundle due to vibration inside the wiring duct, or an end opening of the wiring duct is provided. A configuration in which a terminal cap for stabilizing the connection of the wiring pipe is arranged (Patent Document 2) has been proposed.
JP-A-5-284626 JP-A-10-164724

  By the way, since the wiring duct arranged in the part which receives the vibration as described above has to be separately attached a member for fixing the wiring to its one end part which becomes the lead-out part, the work man-hour and the number of parts increase. There was a problem of increased costs.

  The present invention has been made in order to cope with the above-described problems, and it is not necessary to separately attach a member for fixing the wiring, and the wiring duct capable of easily fixing the lead portion of the wiring with a simple structure. The purpose is to provide.

  In order to achieve the above object, the invention according to claim 1 is a wiring duct that stores wiring in a space formed inside a duct continuous in a longitudinal direction, and at least one end of the duct. The wiring support part which protrudes in the longitudinal direction of this duct is integrally formed in the part.

  According to the present invention, in a wiring duct disposed in a place where vibration is received, such as for a vehicle, a wiring bundling flange is provided integrally at an end of a member constituting the duct, and the wiring is fixed to the flange. By doing so, it is intended to achieve the intended purpose.

  That is, according to the first aspect of the present invention, the wiring is provided by providing the wiring support portion protruding in the longitudinal direction continuously to one end portion (edge portion) of the cylindrical member constituting the wiring duct. The lead-out portion of the wiring can be easily fixed using a binding member such as a tie wrap without separately attaching a member for fixing.

  Here, the wiring duct according to the present invention has a configuration in which a plurality of holes through which a binding member for binding wiring can be inserted are formed in the wiring support portion (Claim 2), or in the wiring support portion. A configuration (Claim 3) in which notches capable of engaging with a binding member for binding wirings are formed at each edge portion at a position orthogonal to the longitudinal direction can be suitably employed.

  Since the wiring inserted into the inside of the wiring duct is usually stored in the longitudinal direction of the duct, the binding member for fixing them is used in a direction orthogonal to the longitudinal direction. Therefore, it is desirable to provide the hole or notch for the binding member formed in the wiring support portion along the direction orthogonal to the longitudinal direction.

  With the above configuration, the wires can be more reliably fixed, and the binding member that fixes these wires can be prevented from falling off due to vibration.

  As described above, according to the wiring duct of the present invention, it is possible to prevent rubbing between the wiring and the end portion (edge) of the duct and disconnection of the wiring due to vibration with a simple and low-cost structure.

  In addition, the wiring fixing structure of the present invention can reduce the number of parts and the number of work steps at the installation site as compared with the conventional wiring duct wiring fixing method, thereby reducing the overall cost of installing the wiring duct. Can do.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
FIG. 1 shows a structure of a wiring duct according to a first embodiment of the present invention, in which an end of the wiring duct is viewed from above (a), viewed from the side (b), and a longitudinal opening. It is the figure (c) seen from the side.

  The wiring duct in this embodiment is also arranged at a position that cannot be seen from the passenger compartment, such as under the floor, behind the ceiling, or inside the wall surface of a railway vehicle, and is a cylindrical shape formed by bending a metal plate as in the conventional example. Body (1). Further, the opening cross section is formed in an oval shape, and is used by connecting the other end (not shown) in the longitudinal direction.

  The feature of the wiring duct in this embodiment is that a flange-shaped wiring support portion 1 a protruding in the longitudinal direction of the cylindrical member 1 is integrally formed at one end portion of the cylindrical member 1 constituting the wiring duct 1. It is a point.

  With the above configuration, the wiring duct in this embodiment hooks the binding members (tie wraps 2 and the like) on both edge portions 1b and 1b in the direction perpendicular to the longitudinal direction of the cylindrical member 1 in the wiring support 1a, and tightens the diameter. Thus, the lead-out portion such as an electric wire inserted into the cylindrical member 1 can be easily fixed. Therefore, the wiring duct according to the present embodiment can prevent disconnection of the wiring due to friction between the wiring and the duct end (opening edge) due to vibration without attaching a new member or the like.

  The method for forming the wiring support portion 1a is not particularly limited. For example, in this embodiment, an example in which the flange-shaped wiring support portion 1a capable of locking the binding member is formed at one end portion of the cylindrical member 1 is shown. If it does, it can also be considered as the structure which notched a part of edge part of the cylindrical member. Therefore, even when the vicinity of one end portion of the cylindrical member 1 is partially cut out and the remaining portion is used as the wiring support portion 1a, it is a matter of course that the same effects as those of the present embodiment can be obtained.

Next, another embodiment of the present invention will be described.
2 and 3 show the structure of the wiring duct according to the second and third embodiments of the present invention. FIG. 2A is a view of the end of the wiring duct as viewed from above, and FIG. b) It is the figure (c) seen from the opening side of the longitudinal direction.

  These embodiments are also arranged at positions that cannot be seen from the passenger compartment, such as under the floor of the railway vehicle, behind the ceiling, and inside the wall surface, and are formed by bending a metal plate as in the conventional example. is there. Further, the other end side (not shown) is used by being connected in the longitudinal direction.

  First, the wiring duct in the second embodiment is different from the first embodiment in that both edges 1b and 1b of the wiring support 1a formed so as to protrude from one end of the cylindrical member 1 as shown in FIG. In addition, notches 1c and 1c that can lock the above-described binding member (tie wrap 2 or the like) are formed.

  Further, the wiring duct in the third embodiment is different from the first embodiment in that, as shown in FIG. 3, the wiring support 1a continuously formed on one end of the tubular member 1 is connected to a bundling member (tie wrap). 2), etc., in which two holes 1d and 1d are formed.

  With these configurations, it is possible to prevent the binding member from falling off due to vibration. Therefore, the wiring duct of the present invention can improve the reliability and durability of the wiring fixing. Further, the wiring fixing work is facilitated, and the number of work steps at the installation site can be suppressed.

  In the above embodiment, the wiring duct having the end opening cross section formed in an oval shape has been described as an example. However, the present invention is not limited to the wiring duct having other opening cross section shapes, and a part of the side surface thereof. Needless to say, the present invention can also be applied to an open duct such as a wiring rod opening in the longitudinal direction.

It is a figure which shows the structure of the wiring duct in 1st Embodiment of this invention, and the edge part of the wiring duct was seen from the figure (a) seen from the top, the figure (b) seen from the side, the opening side of the longitudinal direction It is a figure (c). It is a figure which shows the structure of the wiring duct in 2nd Embodiment of this invention, and the edge part of the wiring duct was seen from the figure (a) seen from the top, the figure (b) seen from the side, the opening side of the longitudinal direction It is a figure (c). It is a figure which shows the structure of the wiring duct in 3rd Embodiment of this invention, and the edge part of the wiring duct was seen from the figure (a) seen from the top, the figure (b) seen from the side, and the opening side of the longitudinal direction. It is a figure (c). It is a figure which shows the structure of the one end part of the conventional wiring duct. It is an example of the shape of the tie wrap used for wiring binding.

Explanation of symbols

1 Tubular member (wiring duct)
1a Wire support 1b Edge 1c Notch 1d Hole 2 Tie wrap 11 Wiring duct 12 Wire support 12c Hole 12A, 12B Fixing member

Claims (3)

A wiring duct for storing wiring in a space formed inside a duct continuous in the longitudinal direction,
A wiring duct characterized in that at least one end portion of the duct is integrally formed with a wiring support portion protruding in the longitudinal direction of the duct.   The wiring duct according to claim 1, wherein a plurality of holes through which a binding member for binding the wiring can be inserted are formed in the wiring support portion. The notch which can engage with the binding member which binds wiring is formed in each edge part of the position which intersects perpendicularly with the longitudinal direction in the wiring support part, respectively. Wiring duct.

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