JPS631537Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a cable extension support device, especially when extending a cable when storing the cable in a cable tray or rack, and when the cable goes straight, changes direction at a corner, and goes up and down. This invention relates to a cable extension support device that guides and supports cables.

A conventional support device 10 of this type is shown in FIG. 1 of the accompanying drawings. In the figure, reference numeral 1 denotes two sets of rollers that are provided oppositely in the horizontal and vertical directions and guide and support the cable by passing the cable between them, and 2 is a roller for supporting the roller 1. The roller support member 4 of the support frame 3 is fixed to the roller support member 2 of the support frame 3, and is a mounting member provided at a desired position of the cable tray for attaching the support frame 3 to the hanging bracket 9. , the inner upper horizontal roller 1a of the two sets of rollers 1 is configured to be rotatable at right angles to the horizontal direction in order to pass the cable through, as shown in the roller 1a', and the mounting member 4 has a tip and a tip. A handle 5 is provided for fixing the support frame 3 with a hanging bracket interposed between the handle 5 and the mounting member 4.

The conventional device has the above-mentioned structure, and in order to guide the straight cable, as shown in Figure 2 of the attached drawing, there are additional cables installed at 4 to 5 meter intervals, and at the corners, as shown in Figure 3. As shown in FIG. 4, the above-mentioned conventional devices are attached to the up-down sections. In the figure, numeral 6 is a cable to be extended, 7 is a cable tray, 8 is a girder of the cable tray 7, and 9 is a hanging bracket.

Since the conventional device is installed in this way, in order to drop the extended cable 6 onto the girder 8 of the cable tray 7, there is a restriction on the installation direction of the support device 10, making it difficult to install it, and the distance between the rollers is also limited. In addition, since the distance between the upper and lower cable trays is 150 to 200 mm, the support device 10 is large and the distance between it and the cable tray becomes small, or it cannot fit between the cable trays, resulting in It becomes difficult for the cables to fall onto the cable tray. Therefore, in order to arrange the cables, it is necessary to remove the support device from the cable tray to the outside of the cable tray and arrange the cables, or, if the support device does not fit into the cable tray, remove it and extend the cable, and then remove the support device from the cable tray. Furthermore, since the shaft of the roller is rotatably supported directly by the roller support member, the frictional resistance is large and the length of the wire is several hundred, for example.
Because the cable is so long, a large tensile force is applied to the cable during cable extension, and in the worst case scenario, the cable may be cut. It has many drawbacks, such as requiring a large number of workers and the structure of the device itself being larger and more complicated.

The present invention eliminates the drawbacks of such conventional devices, is easy and free to install, and
It is small and has a simple structure, and it is easy to arrange the cables without difficulty in dropping them onto the cable tray.
It is an object of the present invention to provide a cable extension support device that allows cable extension without requiring a large tensile force.

In order to achieve this purpose, the present invention includes a frame formed in a U-shape, and both side members that are parallel to the back member that forms the back side of the U-shape of the frame and form both sides. two shafts at the rear and front supported by the rear and front shafts, the rear and front rollers of the hollows rotatably supported by the rear and front shafts via bearings, respectively, and between the front and rear rollers of the cable, etc. one end of the front shaft is rotatable about the one end in a plane that includes the axes of the front and rear shafts, and passes through at least the vicinity of the one end and the rear shaft. It is rotatably supported around a line that intersects the axis at right angles to the axis of rotation, and the other end is moved in and out of the side member on that side of the frame by a pin that can be moved in and out to move the front roller into a predetermined position. The device is characterized in that it is configured to enable both the holding and the above-mentioned rotation.

Hereinafter, the present invention will be explained based on the accompanying drawings 5 to 10 showing one embodiment of the present invention.

In the figure, reference numeral 20 denotes a cable extension support device of the present invention, the frame 21 of which is formed in a U-shape, and one side member, for example, a right side member 2.
1b is configured to be shorter than the left side member 21c on the opposite side, and together with the rotating side member 21e provided connected to the right side member 21b, almost the left side member 21c
It is composed of the same length. Further, the back member 21a, both side members 21b, 21c, and rotation side member 21e that constitute the frame 21 also have a U-shaped cross section with an inward opening. are each provided with mounting holes 21d for mounting to a cable tray, bracket, etc. to which this support device is mounted. The right side member 21b and the rotation side member 21e are relatively rotatably connected by a pin 21f provided in the longitudinal direction of the right side member 21b.

Reference numeral 22 is a rear shaft, and both ends thereof are connected to the frame 21.
23 is a front shaft provided parallel to the rear shaft 22, and one end thereof is connected to one of the side members, for example, the right side member 21b, for rotation. A pin 24 installed perpendicularly to the axis of the front shaft 23 provided on the rotary side member 21e freely extends through the shaft. It is rotatable in a plane that includes the axes of the shafts 23 and 22, and is also rotatable together with the rotating member 21e about the axis of the pin 21f by means of the pin 21f. Further, a shaft holding member 25 having a groove 25a that fits and slides when the front shaft 23 is in a predetermined position, that is, parallel to the rear shaft 22, is fixed to the other side member, for example, the left side member 21c,
A pin, for example, a U-shaped pin 26 is provided passing through both the left side member 21c and the shaft holding member 25.
The front shaft 23 is sandwiched between the parallel portions of the shaped pins 26. Also, this U-shaped pin 2
One of the parallel parts of the pin 6 is longer than the other, and a spring, for example, a coil spring 27 is fitted to the tip of the long side, and a coil stopper 28 and a frame 21 are installed at the tip of the pin.
is fitted between the left side member 21c of the U-shaped pin 2
6 is always pressed toward the tip of the pin. In this case, the short side of the U-shaped pin 26 passes through at least the wall 25b of the shaft holding member 25, and the front shaft 23 is sandwiched between the parallel portions of the U-shaped pin 26. Moreover, such a structure is not necessarily limited to this, and any structure that can hold or release the front shaft 23 may be used.

Reference numerals 29 and 30 denote rear and front rollers, which are rotatably supported on rear and front shafts 22 and 23, respectively, via bearings 31 with low frictional resistance, such as ball bearings or roller bearings. The cable is shaped like a hollow hollow, for example, an hourglass, and is formed to hold the cable toward the center. In addition, flanges 30a and 29a are attached to both ends of the front and rear rollers 30 and 29 so that the outer diameter sides thereof are close to each other in order to prevent cables from digging in, or together with this, flanges 30a and 29a are attached to both ends of the front and rear rollers 30 and 29.
Anti-biting fittings 32 are provided on the right and left side members 21b and 21c of the frame 21, respectively, and are formed along the outer diameter side or the collar of the frame 21.

Since the device of the present invention is configured as described above, in order to install it on the cable tray, the straight section should be installed as shown in Figure 11 of the attached drawings, and the corner section should be installed as shown in Figures 12 and 13. ,
In the up-down section, as shown in FIG.
Or, it can be hung and attached to a U-shaped bracket 41 attached to it,
In this case, as shown in each figure, the front roller 30 is moved downward in the straight section, inside the corner with the center of rotation, that is, the pin 24, at the top in the corner section, and downward in the up-down section. It is installed so that it opens. By doing this, the front roller 30 can be attached to the U-shaped pin 2.
By pulling 6, the cable 6 automatically falls and is placed on the cable tray 7.

The bracket 41 is constructed as shown in FIG. 15 of the accompanying drawings, and is composed of an upper plate 42, both side plates 43, and a lower plate 44.
The lower plate 44 has an upper part and a lower part formed at different levels, and a notch 44a that fits into the girder 45 of the cable tray 7 is formed at the lower end.
Furthermore, bolts 46 are provided at the lower portions of the side plates 43 to fix the bracket 41 to the cable tray 7 by sandwiching and tightening the side plates of the cable tray 7 with the lower plate 44. Furthermore, in order to fix between the upper plate 42, both side plates 43, and lower plate 44, screw holes 47 are provided on one side of the fixing plate, and elongated holes 4 are provided on the other side.
8 and are fixed by bolts 49 passing through both, and by shifting one of them within the range of the elongated hole 48, the vertical direction can be adjusted within a certain range. .
Further, the upper plate 42 is provided with a hole 42a for attaching the cable extension support device 20 of the present invention using an attachment hole 21d and a bolt that fits into the attachment hole 21d.

In order to operate the present invention by being constructed and installed as described above, the structure is changed from four rollers to two rollers.
It is simple and compact, and the mounting direction can be freely selected, making it easy to install.The small size also prevents cables from falling onto the cable tray even if installed between the upper and lower cable trays. In addition, even if the front roller does not rotate downwards enough because a large amount of cables are placed on the cable tray, first rotate the front roller slightly downward. After that,
By rotating the front roller together with the rotary side member around the pin 21f, the front roller can be rotated sufficiently downward, so that the cable can completely fall onto the cable tray. As a result, in any case, there will be no problem in falling the cable onto the cable tray and arranging the cables.
In addition, because a bearing with a low friction coefficient is interposed between the front and rear shafts and the front and rear rollers, the tension resistance of the cable is reduced, the tension force is reduced, and the risk of wire breakage is also eliminated. It has an effect.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of a conventional cable extension support device, and FIG.
The figure shows the installation procedure of the conventional device at the corner section, FIG. 4 shows the installation procedure for the up-down section, and FIGS. 5, 6, and 7 show the front view, right side view, left side view, and Fig. 8 is an enlarged perspective view of part A in Fig. 5, Fig. 9 is an overall perspective view of Fig. 5, Fig. 10 is a detailed view of part B in Fig. 9, Fig. 11, 12,
Fig. 14 is a diagram showing how to install an embodiment of the device of the present invention in the straight section, corner section, and up-down section, respectively; Fig. 13 is an explanatory diagram showing the opening direction of the front roller when installed at a corner section; Fig. 15 1 is a partial configuration diagram of a bracket to which the device of the present invention is attached.
Figure 6 is a diagram showing how to attach the bracket to the cable tray. 6... Cable, 7... Cable tray, 20
... Cable extension support device, 21 ... Frame, 21a
...Back member, 21b, 21c...Right, left side member,
21d...Mounting hole, 21e...Rotating side member, 2
1f...pin, 22...rear shaft, 23...front shaft, 24...pin, 25...shaft holding member, 26...
... Pin (U-shaped pin), 27 ... Spring (coil spring), 29 ... Rear roller, 29a, 30a ...
Biting prevention device (tsuba), 30...Front roller, 3
DESCRIPTION OF SYMBOLS 1... Bearing, 32... Biting prevention device (biting prevention metal fittings), 41... Bracket (support part). In addition,
In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims for Utility Model Registration] (1) A frame formed in a U-shape, and both side members that are parallel to the back member forming the back side of the U-shape of the frame and forming both sides. between the two supported shafts at the rear and front, the rear and front rollers of the hollow that are rotatably supported by the rear and front shafts through bearings, and the front and rear rollers of the cable, etc. It consists of a digging prevention device,
One end of the front shaft is rotatable about the one end within a plane that includes the axis of the front and rear shafts, and at least a line that passes near the one end and intersects the axis of the rear shaft at right angles. The front roller is rotatably supported as a rotation axis, and the other end of the front roller is held in a predetermined position and both of the rotations are controlled by a pin that is freely retractable and retractable from a side member on that side of the frame. A cable extension support device configured to enable. (2) The cable extension support device according to claim 1, wherein the bearings for supporting the front and rear rollers on the front and rear shafts are either ball bearings or roller bearings. (3) The device to prevent the cable from digging in from the rollers
consisting of at least the collars of the collars provided close to each other at both ends of the front and rear rollers, and the anti-biting fittings attached to the frames on both sides and formed along the circumferences of both ends of the front and rear rollers; Scope of claims for utility model registration, paragraph 1 or 2
Cable extension support device as described in section. (4) The pin for holding the front roller in a predetermined position and rotating it is a U-shaped pin that is provided through the frame in a direction perpendicular to the front and rear axes, and one side is longer than the other. A spring is installed between the long end and the frame to constantly move the pin toward the front end, and when the pin is pulled toward the rear end, the front shaft end moves toward the short end of the pin. The cable extension support device according to any one of claims 1 to 3, which is configured to deviate from the utility model.