JP2001258118A - Cable securing jig for cable rack - Google Patents

Abstract

(57) [Problem] To provide a cable rack-fixing jig capable of simply and collectively securing a large number of cables housed in a cable rack. SOLUTION: A main body 2 provided at both ends with locking portions 30 fitted and locked to a pair of parent girders of a cable rack, respectively.
0, and a cable holding portion 40 which is arranged between the locking portions 30 at the lower portion of the main body 20 and is deformed under pressure to generate a restoring force. The cable holding part 40
The plurality of strip-shaped sheets 40a made of an elastic member are rounded so that both ends are aligned, and both ends are gripped by the opening 20a of the main body 20, and are arranged in a line in the length direction of the main body 20. It is configured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable rack fixing jig for fixing cables laid such as power cables and control cables to a cable rack in a factory or various plants.

[0002]

2. Description of the Related Art FIGS. 8 and 9 are a perspective view and a sectional view, respectively, showing a cable fastening method using a conventional cable fastening jig described in, for example, Japanese Patent Application Laid-Open No. 7-298445. 8 and 9, the cable rack 1 has a pair of long main girders 2 made of steel or the like arranged in parallel to each other, and a pair of small girders 3 of rectangular cross section made of steel or the like. Are connected at predetermined intervals by bolts or the like. The cable securing jig 6 has a gate-shaped main body 7 in the form of a plate, and the main body 7 is constituted by a connecting body 8 and a pair of legs 9 extending integrally and vertically from both ends thereof. . A concave groove 10 having a circular peripheral edge for engaging two bind wires 5 is provided at both ends of the connecting body 8, that is, inside the corners of the gate. Further, a hooking claw 11 for hooking on the child beam 3 is provided at the tip of each leg 9. The main body 7 is made of a hard plastic material such as polyvinyl chloride or a metal material such as a spring steel material and has a spring property, and the interval between the legs 9 can be expanded by the spring property. Then, the distance between the legs 9 is increased and the leg 9 is pushed in while sliding on both sides of the sub-girder 3. Further, after the hooking claw 11 at the tip is hooked on the lower surface of the sub-girder 3, the return stress from the deformation causes The hooking claw 11 is securely held on the lower surface of the child beam 3.

[0003] The cable racks 1 are sequentially connected and installed along a cable laying route. In addition, the same number of cable securing jigs 6 as the number of cables 4 accommodated in the cable rack 1 are prepared, and the bind wires 5 are reciprocated and engaged with the respective concave grooves 10. Then, cable 4
After being extended along the laying route, it is transferred to the cable rack 1, lined, and housed in the cable rack 1. A plurality of cables 4 are connected to the cable rack 1
When the cable fixing jig 6 at the first end where the binding wire 5 is hooked is placed between the parent girder 2 and the cable 4 from one side thereof, It is inserted and further pressed down so as to sandwich the child beam 3 by utilizing its spring property, and the hooking claw 11 at the tip is hooked and fixed to the lower surface of the child beam 3. Next, the second cable securing jig 6 is fixed to the child beam 3 by the same method. At this time, the binding wire 5 reciprocated between the first cable securing jig 6 and the second cable securing jig 6 is tensioned so that the cable 4 is strongly secured. Then, the second cable securing jig 6 is fixed to the sub-spar 3. Hereinafter, the cable securing jig 6 is sequentially hooked and fixed to the child girder 3, a binding wire 5 is inserted between the cable 4 at the opposite end and the other parent girder 2, and both ends are turned to the child girder 3. And a number of cables 4 are fastened to the cable rack 1.

[0004]

As described above, the conventional cable securing jig 6 has the gate-shaped main body 7 in the form of a plate as described above, and the main body 7 includes the connecting body 8 and both ends thereof. And a pair of legs 9 which are vertically extended integrally from each other.
A concave groove 10 having a circular peripheral edge for engaging the binding wire 5 is provided.
Is provided with a hooking claw 11 for hooking. Then, the same number of cable securing jigs 6 as the cables 4 housed in the cable rack 1 are used by reciprocating the bind wires 5 in the concave grooves 10 respectively. Therefore, since a large number of cable securing jigs 6 are hung on the binding wire 5, the cable securing jig 6 is easily detached from the binding wire 5, and the handling becomes complicated. There is a problem that the securing operation of the cable 4 becomes complicated because the cable 4 is bundled by turning it around the beam 3 to complete the securing.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and is a cable capable of easily and collectively securing a large number of cables housed in a cable rack to the cable rack. An object of the present invention is to obtain a cable securing jig for a rack.

[0006]

According to the present invention, there is provided a cable tying jig for a cable rack, comprising: a main body having locking portions provided at both ends to be fitted and locked to a pair of parent girders of the cable rack; A cable pressing portion disposed between the locking portions at a lower portion of the main body and deformed by receiving pressure to generate a restoring force.

[0007] The cable holding portion is formed by rolling a sheet made of an elastic resin so that both ends thereof are joined together, and fixing the joined both ends to the main body.

[0008] The sheet is divided into a plurality of pieces in the longitudinal direction of the main body.

[0009] The cable holding portion is made of a solid body having a predetermined outer diameter made of an elastic resin.

[0010] The cable holding portion is formed of a rubber-made elliptical sphere filled with a fluid.

[0011] A pair of pressure plates are provided on both sides perpendicular to the longitudinal direction of the main body so as to open downward and open.
When the locking portion is fitted and locked to the main girder, the solid body or the elliptical sphere is configured to be pressed from above.

The locking portion extends in the longitudinal direction of the main body, and is then formed into an L-shape bent downward.
Further, a hooking claw is provided at the tip.

The engaging portion is formed in a U-shape having an opening at the bottom, and hooking claws are provided at the tips of both U-shaped pieces.

Further, a plurality of the hooking claws are vertically arranged in parallel.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. FIG. 1 is a perspective view showing a configuration of a cable securing jig for a cable rack according to Embodiment 1 of the present invention. In FIG. 1, a cable securing jig 100 includes a main body 20, a pair of locking portions 30 integrally provided at both ends of the main body 20, and a cable pressing portion 40 held at a lower portion of the main body 20. Have been.

The main body 20 is made of a hard plastic material such as polyvinyl chloride or a metal material such as a spring steel, has a spring property, is formed in a tubular shape having a rectangular cross section, and has an opening 20a.
Is provided at the center of the lower surface over the entire area in the length direction. Each locking portion 30 is formed in an L-shape including a horizontal piece 30a extending outward from the end of the main body 20 in the length direction and a vertical piece 30b extending downward from the tip of the horizontal piece 30a. Further, a hook 30c is provided at the tip of the vertical piece 30b. The cable holding portion 40 is made up of six sheets 40 a formed by forming an elastic member such as a rubber material into a strip shape.
It is arranged in one row in the length direction of 0. Each sheet 40a has both ends pressed into the opening 20a of the main body 20, gripped by the spring property of the main body 20, and has a rounded shape. Here, the main body 20 and the cable holding portion 40 are each formed to have a length substantially equal to the gap between the pair of main girders 2 of the cable rack 1, and the locking portion 30 is fitted and locked to the main girder 2. Is formed.

Next, a method for securing a cable using the cable securing jig 100 will be described with reference to FIGS. The cable racks 1 are sequentially connected and installed along the cable laying route. And
After the cable 4 is extended along the laying route, the cable 4 is transferred to the cable rack 1, arranged, and housed in the cable rack 1. Then, the user holds the main body 20 and pushes each of the locking portions 30 into each of the parent girders 2 so that the cable holding portion 40 is located between the pair of parent girders 2. At this time, the locking part 3
0 indicates that when the hooking claw 30c hits the upper flange 2a of the main girder 2 and the vertical piece 30b is pushed out into the main girder 2 while being pushed outward, the hooking claw 30c passes over the upper side flange 2a. It returns by spring property and fits on the main girder 2. Thereby, as shown in FIG. 2, the main body 20 is installed between the pair of parent girders 2 so as to be orthogonal to the length direction of the cable rack 1, and the cable holding portion 40 is connected between the main body 20 and the cable 4. The cable securing jig 100 is mounted on the cable rack 1 between them.

Since each sheet 40a of the cable holding portion 40 is pressed by the cable 4 by the main body 20, its rounded shape is formed between the main body 20 and the cable 4 as shown in FIG. Deforms into a flat shape according to the gap. At this time, a restoring force is generated in each sheet 40a to return from the flat shape to the round shape due to the elastic force. The restoring force of the sheet 40a acts to push the main body 20 upward, but the hook 30c is hooked on the lower surface of the upper flange 2a, and the main body 20 is prevented from coming off. Then, the restoring force of the sheet 40a acts so as to press the cable 4 against the sub-spar 3, and the cable 4 is fixed to the cable rack 1. When removing the cable securing jig 100, the vertical piece 30b of the locking portion 30a is spread outward to release the engagement between the hooking claw 30c and the upper flange 2a, and the main body 20 may be pulled up. .

As described above, in the cable tying jig 100 according to the first embodiment, the locking portions 30 that are fitted and locked to the pair of parent girders 2 are integrally provided at both ends of the main body 20. A cable holding portion 40 whose shape is deformed under pressure to generate a restoring force is arranged at a lower portion of the main body 20. Then, by engaging and locking the locking portion 30 to the parent girder 2, the cable pressing portion 40 is sandwiched between the main body 20 and the cable 4 in a pressurized state, and its shape is deformed to generate a restoring force. In addition, since a large number of cables 4 housed in the cable rack 1 can be secured together, securing work of the cables 4 is remarkably simplified.

Further, since the sheet 40a made of an elastic member is rounded, and both ends of the sheet 40a are gripped by the main body 20 and arranged at the lower portion of the main body 20, the cable pressing section 40 is formed. Can be manufactured. In addition, since the rolled sheet 40a is gripped by the main body 20, the handling of the cable securing jig 100 becomes easy. Further, since the plurality of rounded sheets 40a are arranged in one row in the length direction of the main body 20, various kinds of cables 4 having different diameters are collectively accommodated in the cable rack 1 for each cable having the same diameter. Cable 4
Are stored in the cable rack 1 in a different number of layers in a direction orthogonal to the length direction of the cable rack 1, the cable racks 1 are different due to the different amounts of deformation of the plurality of rounded sheets 40 a. All the cables 4 housed in the inside can be secured, and excellent versatility can be obtained.

Further, since the locking portion 30 extends in the length direction from the end of the main body 20 and is then formed into an L-shape bent downward, and the hooking claw 30c is provided at the tip thereof. By pushing the locking portion 30 into the main girder 2 from above, it can be fitted and locked on the main girder 2, and excellent mounting properties can be obtained.

Embodiment 2 FIG. In the second embodiment, as shown in FIG. 4, the locking portion 30A is formed such that the length of the vertical piece 30b is substantially the same as the height of the master girder 2. The other configuration is the same as that of the first embodiment. In the second embodiment, when the locking portion 30 </ b> A is fitted to the main girder 2, the hook 30 c is hooked and locked on the lower surface of the lower flange 2 b of the main girder 2. Therefore, also in the second embodiment, the same effect as in the first embodiment can be obtained.

Embodiment 3 FIG. In the first embodiment, the locking portion 30 is formed in an L-shape.
In the third embodiment, as shown in FIG. 5, locking portions 30 </ b> B are formed in a U-shape opening downward, and a plurality of hooking claws 30 c are vertically arranged on each of the U-shaped pieces. It has been established. The other configuration is the same as that of the first embodiment.

In the third embodiment, since the hooking claw 30c is provided at the tip of both U-shaped pieces, the locking portion 30B
Is fitted to the master girder 2, the hooking claws 30 c are hooked and locked on the lower surfaces on both sides of the upper flange 2 a of the master girder 2,
The locking of the locking portion 30B to the parent girder 2 is ensured. Further, since the plurality of hooking claws 30c are vertically arranged in parallel, the locking portion 30B can be securely locked to the main girder 2 even if the thickness of the upper side flange 2a changes, and the present invention can be applied to different types of cable racks 1. And excellent versatility can be obtained.

Embodiment 4 FIG. 6 is a partially cutaway perspective view showing a configuration of a cable securing jig for a cable rack according to Embodiment 4 of the present invention. In FIG. 6, a cable securing jig 101 includes a main body 20A, a pair of locking portions 30 provided integrally at both ends of the main body 20A, and a cable pressing portion 40A arranged at a lower portion of the main body 20A. Have been.

The main body 20A is made of a hard plastic material such as polyvinyl chloride or a metal material such as a spring steel material and has a spring property. The main body 20A has a flat base portion 20b and a mouth downward from both sides of the base portion 20b. And a pair of pressure plates 20c extending in an open manner. Each locking portion 30 has an L-shape including a horizontal piece 30a extending longitudinally outward from an end of a base 20b of the main body 20A, and a vertical piece 30b extending downward from a tip of the horizontal piece 30a. It is molded, and a hook 30c is provided at the tip of the vertical piece 30b.
The cable pressing portion 40A is a solid body in which an elastic member such as a rubber material is formed into a column shape. Here, the main body 20A and the cable holding portion 40A are respectively connected to the cable rack 1
The locking portion 30 is formed so as to be fitted and locked to the main girder 2.

Next, a method for securing a cable using the cable securing jig 101 will be described with reference to FIG. First, as shown in FIG. 7A, the cable holding portion 40A has a plurality of cables 4 accommodated in the cable rack 1 with its length direction orthogonal to the length direction of the cable rack 1. Placed on Then, body 2
0A, and as shown in FIG. 7B, the pair of pressure plates 20b are positioned on the cable pressing portion 40A. After that, the main body 20A is lowered, and each locking portion 30 is pushed into each main girder 2 and fitted to the main girder 2. Thereby, as shown in FIG. 7C, the main body 20A is installed between the pair of parent girders 2 so as to be orthogonal to the length direction of the cable rack 1, and the cable pressing portion 40A is connected to the main body 20A. The cable securing jig 101 is mounted between the cable rack 1 and the cable rack 1.

Since the cable holding portion 40A is pressed against the cable 4 by the base portion 20b and the pressing plate 20c of the main body 20A, the columnar shape of the cable holding portion 40A is changed as shown in FIG. Deformed according to the gap between the cable and the cable 4. At this time, a restoring force is generated in the cable pressing portion 40A to return to the columnar shape by the elastic force. This cable holding part 40A
The restoring force acts to push the main body 20A upward, but the hook 30c is hooked on the lower surface of the upper flange 2a, and the main body 20A is prevented from coming off. Therefore, the restoring force of the cable holding portion 40A is such that the cable 4
The cable 4 is fixed to the cable rack 1.

Therefore, also in the fourth embodiment, the same effects as in the first embodiment can be obtained. Further, according to the fourth embodiment, since the cable holding portion 40A is formed of a columnar solid body made of an elastic resin, the cable holding portion 40A can be manufactured at low cost. In addition, since the pair of pressing plates 20c are extended in a mouth-opening shape on both sides of the base 20b of the main body 20A, the cable pressing portion 40A can be reliably pressed without escaping the cable pressing portion 40A, and a stable cable can be obtained. Fastening can be realized. In the fourth embodiment as well, even when various types of cables 4 having different diameters are collectively accommodated in the cable rack 1 for each cable having the same diameter, the cables 4 are stored in the cable rack 1. Even if the cables are housed in different numbers of layers in the direction orthogonal to the length direction, all the cables 4 housed in the cable rack 1 because the deformation amount of the cable holding portion 40A differs in the length direction. Can be tied up.

Here, in the fourth embodiment, the cable holding portion 40A is formed in a cylindrical shape. However, the shape of the cable holding portion 40A is not limited to a cylindrical shape. Any shape may be used as long as it can secure a large number of cables 4 housed therein, for example, a rectangular parallelepiped. Further, the solid body in Embodiment 4 includes a porous body, that is, a sponge-like body. Further, in the fourth embodiment, the cable holding portion 40A is formed separately from the main body 20A.
And they may be integrated with each other. In this case, the cable securing jig 101 becomes an integral body, and handling becomes easy.

Embodiment 5 In the fifth embodiment, a solid body formed by molding an elastic member such as a rubber material into a cylindrical shape is used as the cable holding portion 40A. In the fifth embodiment, air as a fluid is pressurized and filled. The same effect can be obtained by using the rubber oval sphere formed as the cable holding portion.

[0032]

Since the present invention is configured as described above, it has the following effects.

According to the present invention, the main body having the locking portions fitted and locked to the pair of main girders of the cable rack at both ends, and the lower portion of the main body are arranged between the locking portions. And a cable holding part whose shape is deformed under pressure to generate a restoring force. Can be collectively tied, and a cable tying jig for a cable rack excellent in mounting property can be obtained.

Further, the cable holding portion is formed by rolling a sheet made of an elastic resin with both ends thereof together and fixing the joined both ends to the main body. Can be manufactured at low cost.

Further, since the sheet is divided into a plurality of pieces in the longitudinal direction of the main body, even if cables having different diameters are collectively stored in the cable rack for each cable having the same diameter, Can be secured in a cable rack in a different layer in a direction orthogonal to the length direction of the cable rack, and excellent versatility can be obtained.

Further, since the cable pressing portion is made of a solid body having a predetermined outer diameter made of an elastic resin, the cable pressing portion can be manufactured at low cost.

Further, since the cable holding portion is made of a rubber elliptical sphere filled with a fluid, the cable holding portion can be manufactured at low cost.

A pair of pressure plates are provided on both sides perpendicular to the longitudinal direction of the main body so as to open downward and open.
When the locking portion is fitted and locked to the main girder, the solid body or the elliptical sphere is configured to be pressed from above, so that the cable holding portion can be pressed without escaping, Secures cables securely.

The locking portion extends in the longitudinal direction of the main body, and is then formed into an L-shape bent downward.
Furthermore, since the hooking claw is provided at the tip thereof, the locking portion is pushed into the parent girder so that it can be fitted and locked on the parent girder, and excellent mounting properties can be obtained.

Further, the locking portion is formed in a U-shape having an opening at the bottom, and the hooking claw is provided at the tip of both U-shaped pieces. As a result, excellent fitting properties can be obtained, and the hook claws are locked to the main girder from both sides, so that the locking portion is securely locked to the main girder.

Further, since a plurality of the hooking claws are vertically arranged in a row, the hooks can be applied to different types of cable racks, and excellent versatility can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a cable securing jig for a cable rack according to Embodiment 1 of the present invention.

FIG. 2 is a cross-sectional view illustrating a state in which the cable is fixed by the cable fixing jig for the cable rack according to the first embodiment of the present invention.

FIG. 3 is a diagram for explaining a cable-fixed state by a cable-fixing jig for a cable rack according to Embodiment 1 of the present invention.

FIG. 4 is a fragmentary cross-sectional view showing a cable-fixed state by a cable-fixing jig for a cable rack according to Embodiment 2 of the present invention.

FIG. 5 is a front view showing a main part of a cable securing jig for a cable rack according to Embodiment 3 of the present invention.

FIG. 6 is a partially cutaway perspective view showing a configuration of a cable securing jig for a cable rack according to Embodiment 4 of the present invention.

FIG. 7 is a process cross-sectional view for explaining a cable securing method using a cable securing jig for a cable rack according to Embodiment 4 of the present invention.

FIG. 8 is a perspective view showing a cable securing method using a conventional cable securing jig.

FIG. 9 is a cross-sectional view showing a cable securing method using a conventional cable securing jig.

[Explanation of symbols]

1 cable rack, 2 parent girder, 4 cables, 20,
20A main body, 30, 30A, 30B locking portion, 30c
Hook claw, 40, 40A Cable holding part, 40a
Sheet, 100, 101 Cable securing jig.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kenji Hatsuda 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F-term in Mitsubishi Electric Corporation (reference) 5G357 BA10 BB01 BC06

Claims (9)

[Claims] 1. A main body having locking portions fitted and locked to a pair of main girders of a cable rack at both ends thereof, and a lower portion of the main body disposed between the locking portions and pressurized. A cable fixing jig for a cable rack, comprising: a cable holding portion that is deformed in response to the change to generate a restoring force. 2. The cable holding section is characterized in that a sheet made of an elastic resin is rounded at both ends thereof, and the joined both ends are fixed to the main body. The cable securing jig for a cable rack according to claim 1. 3. The cable securing jig for a cable rack according to claim 2, wherein the sheet is divided into a plurality of pieces in a length direction of the main body. 4. The cable securing jig for a cable rack according to claim 1, wherein said cable holding portion is made of a solid body having a predetermined outer diameter made of an elastic resin. 5. The apparatus according to claim 1, wherein the cable holding portion is formed of a rubber-made elliptical sphere filled with a fluid.
The cable securing jig for the cable rack described in the above. 6. A pair of pressure plates are provided on both sides perpendicular to the longitudinal direction of the main body in a downwardly open shape, and when the locking portion is fitted and locked to the main girder, The cable securing jig for a cable rack according to claim 4 or 5, wherein the solid body or the elliptical sphere is configured to be pressed from above. 7. The locking portion is characterized in that it extends in the longitudinal direction of the main body, is formed into an L-shape bent downward thereafter, and further has a hooking claw provided at the tip thereof. A cable securing jig for a cable rack according to any one of claims 1 to 6. 8. The locking device according to claim 1, wherein the engaging portion is formed in a U-shape having an opening at a lower side, and hooking claws are provided at ends of both U-shaped pieces. 7. The cable securing jig for a cable rack according to any one of 6. 9. The cable securing jig for a cable rack according to claim 7, wherein a plurality of the hooking claws are vertically arranged in parallel.