JPH0756290Y2 - Cable container protruding from the drum winding start port - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention is directed to the winding start end of a cable in the process of paying out a wound electric wire cable (hereinafter referred to as a cable) in a cable drum made of iron, wood or the like. The present invention relates to a cable container in which a protruding cable end is housed in a housing portion on a side surface of a drum so as not to get out of the way and disturb the rotation of the drum during cable feeding.

[0002]

2. Description of the Related Art A thick unit cable uses an iron drum A as shown in FIG. The size of this drum A exceeds 2 m in diameter, and its weight is 3 to 4 Ton. In order to pay out the cable 1 from the drum A, a pipe 4 of 50 to 75 mmφ is inserted into the shaft hole 3 at the center of the arms 2 on both sides of the drum A.
The both ends of the pipe 4 are supported by screw jack stands 5, respectively, and the drum A is rotated around the pipe 4 as an axis to feed the cable 1. Reference numeral 6 in the drawing denotes a cable winding start port.

FIG. 5 shows an example of a conventional wooden drum, and 11 is a left and right wooden disk having a central shaft hole 12. A large number of wooden beams 13 are applied to the outer circumferences of the left and right circular plates 11 and fixed with nails or the like to form a cylindrical body 14.
Make up.

Then, a collar 15 having a large-diameter wooden disk and having a shaft hole 12 in the center is applied to both ends of the body 14 and fixed to the body 14 by means such as screwing. The cable 17 is wound from the winding start opening 16 on the wooden body 14 thus constructed, and both ends of the small splits 19 are fixed to the outside of the collar 15 with nails or the like to protect the cable.

Also in the case of the wooden drum B, the cable is paid out by the same means as the iron drum.

[0006]

In recent years, the amount of cable winding per drum has become long in order to improve the productivity of cables, and to reduce the costs of manufacturing, transportation, and inventory control. In other words, what used to be 200-500 m was 2000-30
It has become 00m. If the length of the cable wound around one drum becomes long in this way, the following problems occur.

The first method is to hook the crane on the shaft hole of the drum or to put the shaft on the shaft hole to hook the shaft when handling the load of the packing drum, but the number of windings is large and the weight is large. Will damage the shaft hole.

Second, when the cable wound around the drum is fed while being cut to the required length at the construction site, the cable is projected from the winding start port.

The reason is that the cable is tightly wound around the drum body at the time of shipment, but the wood constituting the drum is dried and shrunk due to the passage of time such as transportation and storage, and the drum body and the cable wound around it. There is a slight gap between and.

When a gap is generated in this way, the gap is accumulated according to the rotation of the drum due to the feeding of the cable, the accumulated length is concentrated at the winding start port, and the cable end projects from the winding start port.

When the winding start end of the cable is projected as described above, the drum is swung around and the outer jacket of the cable is damaged, and that portion is defective and unusable. Not only that, but if the protrusion becomes too long, it cannot be extended.

Since the shaft hole 3 of the iron drum A is usually about 105 mmφ, the diameter of the shaft hole 3 is larger than the diameter of the pipe 4, and the rotation of the drum A is caused by rotating the shaft hole 3 at the upper end of the outer periphery of the pipe 4.
The inner surface is rubbed. For this reason, the rotation of the drum A is not smooth, and the operator assists the rotation.

However, since the assistance of the drum A is heavy and the frictional resistance between the pipe 4 and the shaft hole 3 is large, a considerable force is required and it is troublesome and dangerous.

The object of the present invention is to solve the above problems and to start winding due to the accumulation of a gap generated between the drum barrel and the cable wound around the drum while the cable is being fed from the drum. While accommodating the cable end with the winding start end of the cable protruding from the mouth in the accommodating part,
It is an object of the present invention to provide a protruding cable container that facilitates the rotation of a heavy drum.

[0015]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention integrally provides a mounting plate which is fitted to a side surface of the cable drum, at one end of a cylindrical body which is fitted in a shaft hole of the cable drum. An opening communicating with the inside of the cylinder is provided in the mounting plate, a rolling bearing is provided in the cylinder, and a protrusion for accommodating a cable protruding from the winding start opening on the side surface of the cable drum is provided in a part of the mounting plate. Provide a cable container.

[0016]

The present invention has the above-mentioned structure. When the cylindrical body is inserted into the shaft hole of the drum and fixed by an appropriate means, the shaft hole is reinforced and at the same time the pipe passing through the shaft hole is supported by the rolling bearing. It

Therefore, when the pipe is supported by the screw jack stand and the cable is paid out from the drum, the drum smoothly rotates via the rolling bearing as the cable is paid out.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment shown in FIGS. 1 and 2, A is an iron drum having the same structure as the conventional example shown in FIG. 4, and 21 is a mounting plate applied to the side surface thereof.

The mounting plate 21 is provided at one end of a cylindrical body 22 inserted into the shaft hole 3 of the cable drum A, and is entirely made of structural steel or reinforced plastic. It leads to the opening of 21.

The end portion of the cylindrical body 22 on the side of the mounting plate 21 has a large diameter, and the rolling bearing 23 is fitted on the inner periphery thereof. In this rolling bearing 23, a pressing plate 24 is attached to the cylindrical body 2 by a countersunk screw.
It is fixed to 2 to prevent it from being pulled out. The mounting plate 21 is fixed to the arm 2 of the drum A by bolting.

This fixing is performed every time the pipe 4 inserted into the shaft hole 3 of the drum A is supported by the screw jack stand 5.

Further, a part of the mounting plate 21 is bulged outward to form a cable housing portion 25. The housing portion 25 is located at a position to cover the winding start port 6 of the drum A and the cable is projected. Secure a space long enough to accommodate.
In the embodiment, it is provided so as to extend over the entire circumference of the side surface of the drum A.

Therefore, as shown in FIG. 1, the drum A having the mounting plate 21 mounted thereon is supported on the screw jack stand 5,
When the cable 1 is paid out, the drum A smoothly rotates via the rolling bearing 23 as the cable 1 is paid out.

FIG. 3 shows another embodiment, in which a hook-shaped slit 26 is formed in the cylindrical body 22, and a retaining ring 29 having a claw 27 that fits in the slit 26 is provided. In this case, after fitting the cylindrical body 22 into the shaft hole 3, the retaining ring 29
The claw 27 of the cylindrical body 22 is fitted into the slit 26 from the inner surface side.
It is fixed in the shaft hole 3 by being integrally coupled to the shaft hole 3.

On the other side of the drum A, instead of the mounting plate 21, a cylindrical body 22 having a flange is fixed.

If the cylindrical body 22 is simply fitted into the shaft hole 3 and there is no risk of the cylinder body 22 coming off from the shaft hole 3, the fixing of the mounting plate 21 by bolting and the integration by the retaining ring 29 are not necessarily performed. There is no.

Although not shown, in the case of the wooden drum shown in FIG. 5, the cylindrical body 22 is similarly attached to the shaft hole 12.

[0028]

[Effect] According to the present invention, since the drum can be smoothly rotated by the above-described structure, it is not necessary for the operator to assist the rotation of the cable when the cable is fed out, and the danger is eliminated.

By inserting the winding start end of the cable wound around the drum body into the cable accommodating portion, a gap is created between the drum body and the cable wound around the drum body, and the winding start end of the cable is Even if it projects from the winding start port, it enters the container, so that the winding start end of the cable projects from the drum, and there is no inconvenience that the outer cover of the cable is damaged and the part becomes unusable.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment.

FIG. 2 is an enlarged vertical side view of the main part of the same as above.

FIG. 3 is an enlarged perspective view of another embodiment of the cylindrical body.

FIG. 4 is a perspective view of a conventional example of an iron drum.

FIG. 5 is a partial vertical sectional side view of a conventional example of a wooden drum.

[Explanation of symbols]

 A Iron drum B Wooden drum 1 Cable 3 Shaft hole 4 Pipe 6 Winding opening 16 Winding opening 17 Cable 21 Mounting plate 22 Cylindrical body 23 Rolling bearing 24 Holding plate 25 Cable housing

Claims (1)

[Scope of utility model registration request] 1. A mounting plate fitted to a side surface of the cable drum is provided at one end of a cylindrical body fitted in a shaft hole of a cable drum for an electric wire cable, and an opening communicating with the cylindrical body is provided in the mounting plate. A rolling bearing is provided in the cylindrical body, and a protruding cable for accommodating a cable protruding from the winding start opening on the side surface of the cable drum is provided in a part of the mounting plate. Container.