JP2841186B2 - Wiring duct for interior cable interior with excellent deformation stability - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring duct for installing various electric wires and communication cables disposed on a ceiling or floor in a room. More specifically, by forming a layer having a large frictional force and elasticity on the joint surface between the base and the cap of the wiring duct, a separation phenomenon between the base and the cap occurs even if the base is deformed by heat or pressure after assembly. Not about wiring ducts.

[0002]

2. Description of the Related Art In general, in an indoor structure, various electric wires are arranged on a ceiling or a floor, etc., and as a means for receiving such various electric wires uniformly and systematically, it is most widely used at present. In some cases, the electric wires are tied with a tying string and fixed to a steel frame such as a ceiling, or the electric wires are covered with a half-moon-shaped cap and fixed.

[0003]

However, such an electric wire fixing method has the characteristic of the method, but since the electric wire is fixed in a state of being exposed to the outside, these fixing tools are used at the time of electric wire replacement work. Many people and time are spent tying each one and fixing it to the ceiling or the like. In particular, in this method, since the wires are fixed while being exposed to the outside, it is not only aesthetically unfavorable, but also it is necessary to disassemble these fixtures one by one at the time of wire replacement work. There are drawbacks.

Accordingly, an object of the present invention is to provide a structure in which a lower cap is locked to an upper cap having locking structures formed on both sides of a base fixed to a ceiling or the like. A wiring duct for interior cable interior that can maintain a stable connection without deforming the structure even when high heat is generated by high voltage and overload by applying force and giving strong fastening force Is to provide.

[0005]

In order to achieve the above object, according to the present invention, a vertically bent elastic groove is formed on both sides of a flat base, and the end of the elastic groove is formed inside. An upper cap formed by bending to form a locking portion, and forming a guide portion inclined outward from the locking portion, and a cable storage portion having a square cross-section with one open side so that the upper cap can be coupled to the upper cap. At both ends, an inwardly inclined portion is formed, and the end of the inclined portion is extended vertically to form a coupling groove, and the end of the coupling groove is bent in the horizontal direction to make the upper cap elastic. And a lower cap which constitutes a coupling means having an elastic projecting portion formed so as to be inserted into the supporting groove. In addition, an elastic friction layer may be formed at a connection portion of the upper cap or the lower cap, or a soft friction layer protruding at a part of the connection portion.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. In the following examples,
FIGS. 1 and 2 show a structure in which an elastic friction layer of a joint structure portion on the ceiling side is formed flat, and FIGS. 3 and 4 show a structure in which a projecting elastic friction layer is formed in the joint structure portion. I have.

According to the present invention, a vertically bent elastic groove 2 is formed on both sides of a flat base 1, and an end of the elastic groove 2 is bent inward to form a locking portion 3. An upper cap (I) having a guide portion 4 inclined outwardly from the locking portion 3 and two ends of a cable housing portion 8 having a square cross-section having one open side so that the upper cap (I) can be connected to the upper cap. ,
An inclined portion 7 inclined inward is formed, and an end of the inclined portion 7 is vertically extended to form a coupling groove 6, and the coupling groove 6 is formed.
Of the upper cap is bent in the horizontal direction to form the elastic support groove 2 of the upper cap.
And a lower cap (II) which constitutes a coupling means 9 having the elastic projecting portion 5 formed so as to be inserted into the lower cap (II).

In such a basic structure, the upper elastic friction layer 15 is formed on the surfaces of the elastic supporting groove 2, the engaging portion 3 and the guide portion 4 of the upper cap (I) by a double injection molding method, or By forming the lower elastic friction layer 16 on the surfaces of the elastic projecting portion 5, the coupling groove 6 and the inclined portion 7 of the lower cap (II), a strong fastening force can be exerted when the upper cap and the lower cap are coupled. .

In another embodiment of the present invention, as shown in FIGS. 3 and 4, the protruding soft friction layer 10 is formed only on a part of the upper cap, or conversely, protrudes from the lower cap. A soft friction layer can be formed. In each case, the same operation and effect can be obtained.

The upper and lower caps constituting the present invention are made of, for example, polyvinyl chloride, polyethylene,
It is manufactured by continuously injection-molding a thermoplastic resin such as polystyrene through a mold die. Particularly preferably, polyvinyl chloride is continuously injection-molded, and 5 to 7% by weight of a plasticizer is added to the elastic friction layer. It is manufactured by double injection molding of the resin obtained. Table 1 shows the test results of the wiring duct of the present invention having the above-mentioned structural features, in which the friction characteristics and the heat deformability are compared with those of a conventional product.

[0011]

[Table 1]

In this test, the width × length × length is 5.5 cm.
5 × 3 cm × 10 cm samples as shown in the drawing were prepared, and with the lower cap (II) fixed on a horizontal surface, a hanging scale (maximum measurement weight 2) was placed on the upper cap (I).
kg, the maximum measuring force of 20 N) was hooked and then pulled in a direction at an angle of about 20 ° to the horizontal plane, and the force at the moment when the upper cap (II) was separated from the lower cap (II) was measured. .

[0013]

As apparent from the above test examples, the wiring duct of the present invention is three to five times as large as the conventional wiring duct.
Since the frictional force is twice or more, the deformability in the direction of the arrow B in FIG. 1 is minimized. Even if is thermally expanded, it is possible to effectively prevent the lower cap from being detached and separated from the connected state.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a sectional view of the first embodiment of the present invention.

FIG. 3 is a sectional view of a second embodiment of the present invention.

FIG. 4 is a partially enlarged sectional view of a portion C in FIG. 3;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base, 2 ... Elastic support groove part, 3 ... Locking part, 4 ... Guide part, 5 ... Elastic support protrusion part, 6 ... Coupling groove part, 7 ... Inclined part, 8 ...
Cable storage part, 9 ... Coupling means, 10 ... Soft friction layer, 1
5: Upper elastic friction layer, 16: Lower elastic friction layer

Claims (4)

(57) [Claims] An elastic groove (2) bent vertically is formed on both sides of a flat base (1), and the elastic groove (2) is formed.
The upper end is bent inward to form a locking portion (3), and an upper cap (I) having a guide portion (4) inclined outward from the locking portion (3); At both ends of a cable storage section (8) having a square cross section with one open side so that it can be connected to (I),
An inwardly inclined portion (7) is formed, and the inclined portion (7) is formed.
Is vertically extended to form a coupling groove (6), and the end of the coupling groove (6) is bent horizontally to be inserted into the elastic supporting groove (2) of the upper cap. An interior cable interior wiring duct having excellent deformation stability, comprising: a lower cap (II) constituting a coupling means (9) having an elastic projection (5). 2. The elastic groove (2) of the upper cap (I),
The interior cable interior having excellent deformation stability according to claim 1, wherein an elastic friction layer (15) formed by double injection molding is formed on surfaces of the locking portion (3) and the guide portion (4). Wiring duct. 3. An elastic friction layer (16) is formed on the surface of the elastic projection (5), the coupling groove (6) and the inclined portion (7) of the lower cap (II). A wiring duct for interior cable interior with excellent deformation stability as described in (1). 4. The wiring for interior cable interior having excellent deformation stability according to claim 1, wherein a soft friction layer (10) protruding is formed at a part of a joint portion of the upper cap (I). duct.