JPH0750373Y2 - Cable container protruding from the drum winding start port - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable drum made of wood or the like, and in the process of paying out a wound electric wire cable (hereinafter referred to as a cable), the end of the winding start of the cable is projected from the winding start opening. 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 in the way.

[0002]

2. Description of the Related Art FIG. 4 shows an example of a conventional wooden drum.

In this figure, reference numeral 1 is a left and right wooden disk having a central shaft hole 2. A large number of wooden beams 3 are applied to the outer peripheries of the left and right disks 1 and fixed with nails or the like to form a cylindrical body 4.

A collar 5 made of a large-diameter wooden disk and having a shaft hole 2 in the center is applied to both ends of the body 4, and is fixed to the body 4 by means of screwing or the like. The cable 7 is wound from the winding start port 6 on the wooden body 4 thus constructed, and both ends of the small splits 9 are fixed to the outside of the collar 5 with nails or the like to protect the cable.

[0005]

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.

When the length of the cable wound around one drum is increased, 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.

The second point is that when the cable wound on the drum is fed while being cut to the required length at the construction site, the cable projects from the winding start port 6.

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.

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 body and the cable wound around the drum during the feeding of the cable from the drum. (EN) Provided is a projecting cable container in which a cable end of which a winding start end of a cable projects from a mouth is housed in a housing part and a shaft hole of a drum is reinforced.

[0013]

In order to solve the above-mentioned problems, the present invention removably fits an inner sleeve in an outer sleeve fitted in a shaft hole of a cable drum,
At one end of the outer sleeve, a mounting plate that is fitted to the side surface of the cable drum is integrally provided, and an opening that communicates with the outer sleeve is provided at the mounting plate. A tapered inner peripheral surface and a tapered outer peripheral surface are provided on the outer peripheral surface on the other end side of the sleeve, respectively, and a plurality of slits extending from the other end of the outer sleeve to one end are provided, and the mounting plate is provided on one end side of the inner sleeve. Provide a male screw to screw the tightening nut that presses against the outer surface of the
A projecting cable container from the drum winding start port provided with a projecting cable housing portion for housing a cable projecting from the winding start port on the side surface of the cable drum.

[0014]

The present invention is constructed as described above. When the outer sleeve fitted with the inner sleeve is fitted into the shaft hole of the drum and the tightening nut is screwed into the inner sleeve, the tightening nut is attached to the outer sleeve mounting plate. Press against the outer surface of.

When the nut is pressed against the mounting plate as described above, the reaction force of the nut causes the inner sleeve to be pulled toward the outer side of the drum with respect to the outer sleeve.

Therefore, the taper outer peripheral surface of the inner sleeve presses the taper inner peripheral surface of the outer sleeve radially outward, and the other end of the outer sleeve expands and comes into pressure contact with the shaft hole, so that the outer sleeve comes into contact with the shaft hole. Fixed.

Therefore, when the drum is suspended by hooking the shaft hole or by hooking the shaft passing through the shaft hole, the suspension force is first transmitted from the inner sleeve to the outer sleeve and dispersed. , The dispersed force is transmitted to the inner surface of the shaft hole of the drum.

When the cable is unwound from the drum, the end of the beginning of winding the cable is pulled out of the flange from the winding start opening provided in the flange and placed in the cable container.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment of FIGS. 1 to 3, A is a cable drum having the same structure as that of the conventional example shown in FIG. 4, and 11 is a mounting plate applied to the side surface thereof.

The mounting plate 11 is provided at one end of the outer sleeve 10 which is inserted into the shaft hole 2 of the cable drum A, and is entirely made of structural steel or reinforced plastic. It communicates with the opening of the mounting plate 11.

The outer sleeve 10 has a smaller diameter than the shaft hole 2 as a whole, and one end of an inner sleeve 12 which is detachably fitted into the outer sleeve 10 projects from one end of the outer sleeve 10 to the outside of the mounting plate 11. A male screw 13 for screwing a tightening nut 14 is provided on the outer side of one end of the sleeve 10.

A tapered inner peripheral surface of the outer sleeve 10 is formed on the inner periphery of the other end of the outer sleeve 10, and a plurality of slits 15 are provided on the same portion from the other end toward one end. Further, a tapered inner peripheral surface that matches the tapered inner peripheral surface of the outer sleeve 10 is provided on the outer periphery of the other end of the inner sleeve 12.

Further, a part of the mounting plate 11 is bulged outwardly to form a cable accommodating portion 16. The accommodating portion 16 is 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.

In the above embodiment, after inserting the end portion of the cable 7 into the winding start port 6 and winding the cable around the case 4, the both ends of a large number of the small splits 9 are fixed to the outside of the collar 5 to fix the cable. Protect.

Further, as described above, the inner sleeve 12
When the outer sleeve 10 fitted with is fitted into the shaft hole 2 of the drum A, the mounting plate 11 is brought into contact with the side surface of the drum A, and the tightening nut 14 is screwed in while the cable housing portion 16 covers the winding start port 6. , The inner sleeve 12 is pulled to the outside of the drum A with respect to the outer sleeve 10, and by the reaction force, the tapered outer peripheral surface of the inner sleeve 12 presses the tapered inner peripheral surface of the outer sleeve 10 in the radial direction, and the slit The other end of the divided outer sleeve 10 is pressed against the shaft hole 2 so that the sleeves 10 and 12 are fixed to the shaft hole 2.

[0026]

As described above, according to this invention, since the winding start end of the cable wound around the drum body is inserted into the cable housing portion, a gap is generated between the drum body and the cable wound around the drum body. Even if the winding start end of the cable protrudes from the winding start port, it enters the container, so that the winding start end of the cable protrudes from the drum, and there is no inconvenience that the outer cover of the cable is damaged and the portion becomes unusable.

Further, a plurality of slits are provided at the end portion of the outer sleeve fitted in the shaft hole, and an inner sleeve fitted with a taper at this portion is pulled inward through a tightening nut to pull the outer sleeve into the inner surface of the shaft hole. Since it is press-fitted to the cable housing, it can be stably fixed to the shaft hole by simply screwing in the tightening nut, and at the same time, the cable housing portion covers the winding start opening, so that the cable housing portion can be easily provided on the conventional cable drum.

Further, when the drum is suspended by hooking the shaft hole or by hooking the shaft passing through the shaft hole, the suspension force is first transmitted to the inner and outer sleeves and dispersed, and Since the dispersed force is transmitted to the inner surface of the shaft hole of the drum, damage to the shaft hole is prevented. Therefore, it is possible to maintain the smooth rotation of the drum and the uniformed tension when the electric cable is paid out for a long period of time.

[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] Similarly, an enlarged perspective view of a cylindrical body.

FIG. 4 is a partially longitudinal side view of a conventional example.

[Explanation of symbols]

 A Cable drum 2 Shaft hole 6 Winding opening 7 Cable 10 Outer sleeve 11 Mounting plate 12 Inner sleeve 14 Tightening nut 15 Slit 16 Cable housing

Claims (1)

[Scope of utility model registration request] 1. An inner sleeve is detachably fitted in an outer sleeve fitted in a shaft hole of a cable drum for an electric wire cable, and a mounting plate fitted to a side surface of the cable drum is integrally provided at one end of the outer sleeve. Along with this, the mounting plate is provided with an opening communicating with the outer sleeve, and a tapered inner peripheral surface and a tapered outer peripheral surface are provided on the outer peripheral surface on the other end side of the outer sleeve and the outer peripheral surface on the other end side of the inner sleeve, respectively. , A plurality of slits extending from the other end of the outer sleeve to one end are provided, and one end of the inner sleeve is provided with a male screw for screwing a tightening nut in pressure contact with the outer surface of the mounting plate, and a part of the mounting plate is provided. A drum winding provided with a protruding cable housing portion for housing a cable protruding from the winding start opening on the side surface of the cable drum. Cable housing that projects from the opening