JP4011783B2 - Cable feeding device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cable feeding device used when, for example, a fiber-resin composite cable having a strong resilience wound in a coil shape is fed from the coil.
[0002]
[Prior art]
In the fields of civil engineering and architecture, various cables are used for various reinforcements and tensions. Conventionally, such a cable is wound around a reel and wound into a coil shape. When the cable is used, the reel is rotatably suspended on a stand, and the cable is sequentially pulled out while rotating the reel.
[0003]
[Problems to be solved by the invention]
By the way, in recent years, fiber-resin composite cables in which a fiber bundle is impregnated with resin and twisted to form a rope structure have been used as various reinforcing and tension wires. Such a fiber-resin composite cable is lightweight and has a strong elastic restoring force against bending. Therefore, when the cable is wound into a coil shape, a strong resilience to return straight is generated. You will have to take special measures.
[0004]
In other words, when the fiber-resin composite cable wound on the reel is fed out, the reel tries to rotate in the direction in which the coil can be unwound due to the strong repulsive force of the cable, and therefore a brake device for suppressing the rotation is incorporated in the reel. It will be necessary.
[0005]
Also, when cutting the cable that has been fed out to a predetermined length, the cable on the coil side that becomes the cut end is previously held using gripping means so that the cut end of the cable does not jump off due to the repulsive force. The troublesome and troublesome work of having to grip is required.
[0006]
As described above, conventionally, a troublesome treatment is required when a cable is drawn out or when the drawn cable is cut into a fixed length, which requires skill in the work and lowers efficiency.
[0007]
The present invention has been made by paying attention to such points, and the object of the present invention is that even if the cable has strong resilience, the cable can be smoothly drawn out from the coil by simply pulling out the cable. An object of the present invention is to provide a cable feeding device that can easily and efficiently cut a cable that has been fed to a predetermined length, without taking any special measures against the resilience of the cable.
[0008]
[Means for Solving the Problems]
In order to achieve such an object, the present invention provides a base plate on which a support column is erected and fixed, and the support column is inserted into a central portion and rotatably disposed on the base plate, and a coil of a cable is accommodated therein. And a guide for feeding a cable that is attached to and supported by the support at a fixed position on the inner side of the coil housed in the case and that rubs against the cable. The drawn cables are sequentially pulled through the guide, and the cables are fed out while rotating the case.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The feeding device according to the present invention includes a case 1 having a circular bowl shape, and a detachable cover 2 at an opening at the top of the case 1, and each of the case 1 and the cover 2 is a synthetic resin such as polyethylene, for example. It is formed by.
[0010]
The case 1 has an inner diameter of 1050 mm and a depth of 150 mm, for example, and an opening 3 having an inner diameter of 800 mm is formed on the upper surface of the cover 2.
[0011]
A turntable 4 is attached to the lower side of the case 1 as a rotating means. The turntable 4 has a plurality of rollers 5 on the lower surface, and is integrated with the case 1 via the rollers 5 in the direction around the vertical axis. It can be rotated.
[0012]
Reference numeral 6 denotes a metal base plate, and a metal column 7 is vertically fixed to the center of the upper surface of the base plate 6 by welding or the like. A through hole 8 through which the column 7 can penetrate is formed in the bottom surface of the case 1 and the center of the turntable 4. A support column 7 is inserted into the case 1 from the lower side of the case 1 through the through hole 8.
[0013]
When the column 7 is inserted into the case 1, the base plate 6 is disposed on the horizontal installation surface A, and the rollers 5 of the turntable 4 are disposed on the base plate 6. In this state, the rollers 5 As a result of rolling on the base plate 6, the case 1 is rotated integrally with the turntable 4 in the circumferential direction around the column 7 as a central axis.
[0014]
An arm 9 is detachably attached to the upper end portion of the support column 7 via a bolt 10, and a guide 11 is attached to the distal end portion of the arm 9. The guide 11 is a pipe-like member made of a synthetic resin such as vinyl chloride, and has an outer diameter of 50 mm, an inner diameter of 40 mm, and a length of 350 mm.
[0015]
The guide 11 is supported at a position deviated from the center of the case 1 toward the peripheral surface thereof, and when the cover 2 is attached to the case 1 as shown in FIG. Inclined and fixed to the arm 9 such that the portion 11a is disposed at a position slightly below the surface of the opening 3 of the cover 2 and the tip portion 11b is disposed at a position slightly above the surface of the opening 3.
[0016]
Next, a procedure for using the feeding device configured as described above will be described.
The cable C is manufactured by twisting a carbon fiber-side strand impregnated with a thermosetting resin on the outer periphery of a carbon fiber core strand impregnated with a thermosetting resin, and curing the resin. It is a fiber resin composite cable (hereinafter simply referred to as a cable) having a seven-strand structure. The cable C has an outer diameter of 7.5 mm and a length of 600 m.
[0017]
When the cable C is manufactured, the cable C is first aligned with a reel on which the side plate can be detached and wound up to form a coil C1, and after winding, several portions of the coil C1 are fastened with a band, and then the side plate of the reel is secured. And remove the coil C1 from the reel. The coil C1 has an outer diameter of 1000 mm, an inner diameter of 850 mm, and a height of 130 mm, and the winding start end of the cable C is disposed on the inner periphery and the winding end end is disposed on the outer periphery. That is, the cable C is wound in an orderly manner from the inside to the outside of the coil C1.
[0018]
Next, the coil C1 of the cable C is accommodated in the case 1, and the cover 2 is attached to the opening of the case 1, and the cable C is transported to the use site in this state.
[0019]
At the site of use, the support column 7 is inserted into the case 1 through the through hole 8 from the lower side of the case 1, the rollers 5 of the turntable 4 are arranged on the base plate 6, and the arm 9 is attached to the upper end of the support column 7. The guide 11 is attached via
[0020]
Thereafter, the end portion of the cable C exposed on the inner periphery of the coil C1 is pulled out, and this end portion is passed from the rear end portion 11a of the guide 11 toward the front end portion 11b. Let the degree be derived. Then, the fastening band of the coil C1 is removed.
[0021]
Under this state, the end portion of the cable C led out from the guide 11 is slowly pulled. By this pulling, the case 1 and the coil C1 are rotated together with the turntable 4 around the support column 7 on the base plate 6, and the cable C is sequentially fed out in a fixed direction from the inner peripheral side of the coil C1 by this rotation.
[0022]
As described above, the cable C is fed while the coil C1 rotates integrally with the case 1, so that the cable C is not twisted during the feeding. When the cable C is pulled out from the guide 11 and the hand is released from the cable C and released, the rotation of the case 1 stops.
[0023]
Here, the cable C has a strong resilience to bending, but is placed at that position by friction with the guide 11, so that even if the hand is released from the cable C, the case 1 rotates freely by the repulsive force of the cable C. The cable C will not swing.
[0024]
Also, when the cable C drawn out from the guide 11 by a predetermined length is cut and its cut end is released, the cable C on the coil C1 side is restrained and fixed at that position by friction with the guide 11, so that the cable There is no danger that the cut end of C jumps by its repulsive force. In addition, when cutting the cable C, it is preferable to cut the cable C so that an extra portion of about 500 mm or more remains on the far side from the guide 11.
[0025]
The case 1 and the turntable 4 are preferably as light as possible in order to reduce the rotational moment of inertia, and the case 1 can be formed into a bowl shape made of steel or synthetic resin in order to reduce the weight. As a means for rotatably supporting the case 1, in addition to using the turntable 4, a plurality of rollers may be directly attached to the outer bottom portion of the case 1.
[0026]
In addition to using a pipe-shaped member, for example, a roll pair or a belt pair can be used as the guide 11. In this case, the guide 11 is gripped by sandwiching the cable C between the roll pair and the belt pair. It is also possible to incorporate a brake mechanism in advance in the rotating part of the roll pair or the belt pair, or to attach a friction member such as rubber to the surface of the roll or the surface of the belt.
[0027]
When a pipe-like member is used as the guide 11, it is important to use a material harder than the cable C as the material of the guide 11 so as not to be damaged early due to friction with the cable C.
[0028]
The arrangement position and angle of the guide 11 are appropriately determined according to the winding diameter and height of the coil C1, but the arrangement position is as close as possible to the inner periphery of the coil C1 and approximately the same as the height of the coil C1. Further, the inclination angle is preferably about 10 to 30 °.
[0029]
In addition, it goes without saying that the feeding device of the present invention is not limited to the case of using the fiber resin composite cable, but can be sufficiently used for feeding the steel cable.
[0030]
【The invention's effect】
As described above, according to the present invention, even if the cable has a strong resilience, it is possible to smoothly draw out the cable from the coil by simply pulling out the cable. Even when cutting, the cutting can be easily and efficiently performed without taking any special measures against the resilience.
[Brief description of the drawings]
FIG. 1 is a perspective view of a feeding device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a state in use of the feeding device.
FIG. 3 is a plan view of the feeding device according to an embodiment of the present invention with a cover removed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Case 2 ... Cover 3 ... Opening 4 ... Turntable 5 ... Roller 6 ... Base plate 7 ... Post 8 ... Through hole 9 ... Arm 10 ... Bolt 11 ... Guide C ... Cable C1 ... Coil of cable

Claims (2)

A base plate in which a support column is erected and fixed, a case in which the support column is inserted into a center portion and rotatably disposed on the base plate, and a cable coil can be stored therein, and the case is stored in the case A cable feeding guide that is attached to and supported by the support at a fixed position on the inner side of the coil and that rubs against the cable, and sequentially pulls the cable drawn from the coil through the guide, A cable feeding device characterized by feeding a cable while rotating a case.   The cable feeding device according to claim 1, wherein the cable is a fiber resin composite cable.

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