JPH0340021Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Field of industrial use) This invention relates to a cable rack roller for laying and storing a large number of cables in buildings, factories, and other architectural structures. Used for running cables inside ladder-shaped cable racks.
For cable racks that enable smooth and quick wiring work even with long cables of large diameter, and in particular that enable sequential wiring when multiple cables are routed within the cable rack. This relates to wire drawing rollers.

(Prior Art) Conventionally, various cables have been wired in buildings and factories, and this has been done by storing the wires in cable racks. When running wires into cable racks, the cables are often large in diameter and long, so wire stretching rollers are used as guides.
Various structures have been proposed. For example, Utility Model Application Publication No. 57-175523, Utility Model Application Publication No. 58-97919,
There are devices such as those disclosed in Japanese Utility Model Publication No. 58-25689, and all of these devices are fixed within a cable rack to allow cables to run through them. There is also a method in which the rotation performance of the rollers during wire threading is improved by arranging a large number of rotatable small rolls in a row (for example, Japanese Utility Model Application Publication No. 58-66812).

(Problem to be solved by the invention) According to the conventional method as described above, in the former case, after the wiring is completed, the wire must be moved from the roller to the rack at the predetermined position where it is to be placed and stored. Furthermore, the roller itself could not be removed until after it had been moved. Also, in the latter case, it was troublesome to remove the wire after the wiring work was completed.

Furthermore, when multiple cables are to be routed through, a large cable with a corresponding length or width must be used, which is troublesome to handle.

Therefore, this invention was devised in order to eliminate the various drawbacks that existed in the past as mentioned above. By doing this, it is easy to remove the cable after wiring work is completed, and the cable can be placed in the specified position in the cable rack just by removing it, eliminating the need for moving the cable again and improving work efficiency. The object of the present invention is to provide a wire stretching roller for a cable rack which greatly improves the cable rack and in particular enables sequential wiring when a plurality of cables are passed through the cable rack.

[Structure of the invention] (Means for solving the problem) In order to achieve the above-mentioned purpose, this invention consists of a pedestal installed between the main girders of the cable rack through which the cables are drawn and passed; , a fixing means for removably fixing this pedestal to the main girder, a roller pedestal that is rotatable and slidable on the pedestal, and is positioned and fixed by a positioning means, and a rotatable roller pedestal that is rotatably supported on the roller pedestal. It is characterized by comprising a plurality of wire threading disc-shaped rollers arranged in a row.

(Function) In the wire drawing roller for a cable rack according to the present invention, the rollers are arranged and fixed between the main girders at appropriate intervals via fixing means within the cable rack through which the cables are drawn in and passed.

At that time, the rollers are supported by shafts, and the roller stands arranged in rows are positioned and fixed on the stand via positioning means, and the roller stand is fixed to the stand by placing it on the child girder. It corresponds to the cable routing position, which is adjusted by sliding the roller stand relative to the pedestal.

In this way, the cable to be wired is placed on the rollers disposed within the cable rack, and the wire threading operation is performed using the rotating action of the rollers. At this time, each roller rotates as a result of the cable threading pressure to reduce the frictional resistance caused by the cable threading.
Send out the cable.

This cable routing work is performed for each cable, and the cables are placed at the position where they are placed on the child girder.
This is carried out for each cable by moving the roller stand relative to the stand and repeating fixing via the positioning means.

After the wire threading operation is completed, the wire drawing roller of this invention can be removed from the cable rack by releasing the fixing means, and the cable after threading is left as it is on the slave girder of the cable rack.

On the other hand, it is possible to bind the cable before or after removing the wire drawing roller of this invention after the wire has been wired.

(Example) Hereinafter, an example of this invention will be described with reference to the drawings.

Reference numeral 1 shown in the figure is a frame, which is detachably arranged in a built-up manner via fixing means 3 within a predetermined cable rack L through which the cable W is led through.

That is, they are arranged between the main girders L1 in a cable rack L having a substantially ladder shape, in which child girders L2 are constructed and arranged at predetermined intervals between the parallel main girders L1 facing each other.

The pedestal 1 itself may be hollow or solid, and the pedestal 1 may be rotatably and slidably combined with a roller pedestal 8, which will be described later, and the main girder L.
It suffices if it is satisfied that the parts can be freely attached and detached between each other.

The pedestal 1 shown in the figure is made into a hollow cylinder to reduce its weight in order to make it easy to carry.

The fixing means 3 for removably installing and fixing such a frame 1 between the main girders L1 may be a direct screw structure as shown in FIGS. 1 to 4, or a fixing means 3 as shown in FIG. , due to the clamping screw structure.

In the former case, both ends of the pedestal 1 are closed with lid plates in which screw holes are formed, and the lid plates are connected to the main girder L1.
The main digit L1 is in contact with the inner surface and the outside of the main digit L1 can be seen.
A fixing screw 4 inserted through the hole is screwed into the screw hole. According to this, it is only necessary to insert the fixing screw 4 into the main girder L1, and the frame 1 can be installed and fixed with an extremely simple configuration.

In the latter, the end portion of the pedestal 1 placed on the upper surface of the lower flange of the main girder L1 is detachably fixed by a grip plate 5 and a fixing metal fitting 6. Gripping plate 5
consists of a band-shaped plate having an arc-shaped gripping portion that grips the end of the pedestal. The fixing metal fitting 6 has an approximately U-shaped side wall having an engagement notch that engages with the upper surface of the grip plate 5, and has a substantially U-shaped front side connected to the bottom wall to form a substantially U-shaped front side. The tip of the fixing screw 7 is pressed against the lower surface of the lower flange. According to this, it can be easily attached to and detached from any part of the main girder L1, and compared to the former,
This is convenient because it is not necessary to drill a through hole into the parent girder L1.

It goes without saying that the fixing means 3 for fixing the frame 1 to the main girders L1 is not limited to the structure shown in the above-described example.

A roller stand 8 is rotatably and slidably positioned and fixed to the pedestal 1 via a positioning means 12.

The roller stand 8 has bearing parts 1 at both ends of a fitting cylinder part 9 formed in a cylindrical shape that can be externally fitted onto the cylindrical frame 1.
0 are placed facing each other, and a roller shaft 11 is horizontally mounted between the bearing portions 10.
1, rollers 14, which will be described later, are arranged in a row.

The fitting cylindrical portion 9 has a single or hollow double cylindrical shape, is rotatable relative to the pedestal 1, and only needs to be slid in the length direction of the pedestal 1, and has a length that is smaller than the length of the pedestal 1. formed short.

The positioning means 12 for positioning and fixing the roller stand 8 on the stand 1 is constructed by inserting a mounting pin 13 into a fixing hole 2 drilled in each of the stand 1 and the fitting tube part 9. The roller stand 8 is fixed in a state in which the roller shaft 11 of the roller stand 8 is positioned upward with respect to the stand 1 which is installed and fixed between the girders L1 (see FIG. 2).

Of course, when the cable rack L is bent in the vertical direction to lead in the cable W, the roller shaft 11 may be located on the side of the pedestal 1 (see FIG. 3).

The mounting pin 13 may have a bolt structure, or may have a rod shape having an engaging portion that elastically protrudes and retracts at the lower end.

Furthermore, a plurality of rotatable disk-shaped wire passing rollers 14 are arranged in a row on the roller shaft 11. Since the rollers 14 arranged in a row rotate individually to make the cable W pass through extremely smoothly, the rollers 14 are arranged at a certain distance from each other on the outer circumferential surface of the roller 14, which is the wire passing surface. Ru. Therefore, as shown in the figure, the center portion of the roller 14 is formed to be thicker than the outer peripheral portion on both sides.

Further, the roller 14 is made of synthetic resin such as polyacetal resin, thereby eliminating the need for lubricating oil, reducing weight, and facilitating handling.

This then explains its use.

First, this devised wire drawing roller has roller 14.
are assembled by positioning and fixing the roller stands 8, which are rotatably supported and arranged in rows, on the stand 1 via the positioning means 12. Then, this is installed and fixed via the fixing means 3 between the main girders L1 at an appropriate interval in the cable rack L which has been laid and fixed as appropriate. That is, the pedestal 1 is placed between the main girders L1 of the cable rack L, and the fixing screws 4 inserted through the main girder L1 are screwed into the end of the pedestal 1, or on the lower flange of the main girder L1. Hold the end of the pedestal 1 placed on the cable rack L with the grip plate 5.
Fixing means 3
The upper surface is engaged, and in this state, the fixing screw 7 is screwed in and tightened. At this time, the roller 14 is set slightly higher than the upper surface of the child beam L2 of the cable rack L.

The cables W are placed on the rollers 14 of the invented wire drawing rollers arranged in this way, and the cables W are drawn into the cable rack L using the rotation of the rollers 14 and passed one after another.
Then, by moving and fixing the roller stand 8, which is fixed by selecting a position with respect to the gantry 1, by operating the positioning means 12, and letting each cable W pass through, the roller stand 8 is fixed on the sub-girder L2. Multiple cables W can be wired in parallel.

After the wire threading work is completed, the wire drawing roller of this invention can be removed from the inside of the cable rack L by releasing the fixing means 3, and the cable W after wire threading can be left as it is on the sub-girder L2 of the cable rack L. will be left behind.

[Effect of the invention] Therefore, by installing and fixing the main girder L1 between the main girders L1 in the cable rack L where the cable W is to be routed, the roller 14 for smoothing the wire passage can be installed in the cable rack L. You can set the layout.

Since the cable W is routed directly inside the cable rack L, the work can be carried out extremely easily.
There is no problem in binding the cable W even when the cable W is placed on it.

Since a rotatable and slidable roller stand 8 is provided for the pedestal 1 installed between the main girders L1 of the cable rack L and is positioned and fixed by the positioning means 12, the child girder L2 The roller stand 8 can be adjusted and fixed in accordance with the position on which it is placed. In other words, it is sufficient that the roller stand 8 is formed long enough to place at least one of the cables W to be wired, and it can be threaded while moving in the length direction of the sub-girder L2 for each cable W. All you have to do is carry out the work, and when the wire is running, the positioning means 12
This prevents the roller stand 8 from moving unexpectedly.

In addition, when fixing the roller stand 8 to the stand 1 installed between the main girders L1, the roller stand 8 has a pivot support,
By setting the arrangement position of the plurality of rollers 14 arranged in a row upwardly or sideways as appropriate, the cable rack L can be used either on the horizontal surface or on a curved portion in the vertical direction.

In addition, when removing, it is only necessary to release the fixing means 3 that fixes the pedestal 1 to the main girder L1, and the cable rack L can be brought below the cable rack L or lifted from between the cables W after wiring. Removal work is easy. At that time, it is not necessary to move or remove the cable W that has been passed through the cable rack L from above the roller 14, and the cable W is simply removed, and the cable W is left in the predetermined position within the cable rack L, and the cable W is kept in the wire storage state. becomes.

Furthermore, since a plurality of rollers 14 are arranged in a row on the roller shaft 11, it has an extremely simple structure, has excellent portability, is easy to handle, and can greatly improve the efficiency of wire threading work.

[Brief explanation of drawings]

The drawing shows one embodiment of this invention.
The figure is a perspective view of the state in use, FIG. 2 is a sectional view, FIG. 3 is a sectional view in another state of use, FIG. 4 is a front view, and FIG. It is a perspective view in a case where it is fixed. L...Cable rack, L1...Main girder, L2...
... Child girder, W ... Cable, 1 ... Frame, 2 ... Fixing hole, 3 ... Fixing means, 4 ... Fixing screw, 5 ...
Gripping plate, 6...Fixing bracket, 7...Fixing screw, 8...
... Roller stand, 9 ... Fitting cylinder part, 10 ... Bearing part, 11 ... Roller shaft, 12 ... Positioning means, 13 ... Mounting pin, 14 ... Roller.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A pedestal installed between the main girders of a cable rack through which cables are drawn, a fixing means for removably fixing this trestle to the main girder, and a rotatable structure attached to the pedestal. , characterized by comprising a roller stand which is freely slidable and is positioned and fixed by a positioning means, and a plurality of disc-shaped rollers for wire passing which are freely rotatable and are rotatably supported on the roller stand and arranged in rows. Wire extension roller for cable racks. 2. The roller stand has bearing parts facing each other at both ends of a cylindrical fitting tube part that can be externally fitted onto a cylindrical frame, and a roller shaft is horizontally mounted between the bearing parts. A wire drawing roller for a cable rack according to claim 1, wherein the roller shaft is arranged in rows of rollers. 3. The wire extension roller for a cable rack according to claim 2, wherein the positioning means is configured to insert a mounting pin into a fixing hole drilled in each of the pedestal and the fitting cylinder.