JP2000219433A - Wire drum - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the working time, and to secure the safety of the work while smoothly transferring the cable from a shelf to a winding barrel by providing a series of flange along a peripheral edge of the shelf for winding an excessive length part of a starting end of a wire and along a drum center side groove edge of a wire groove. SOLUTION: A cylindrical shelf 13 having a diameter larger than a winding barrel 11 and a fixture 14 for fixing a starting end of a wire onto the shelf 13 are provided inside of one of drum flanges provided in both ends of the winding barrel 11 of a drum 10. The inside surface 12a of the drum flange 12 is provided with a wire groove 1, and a series of flange 16 is provided along the peripheral edge of the side surface of the shelf 13 and a drum center side groove edge of the wire groove 15. A drum center side groove surface of the wire groove 15 is continued to the peripheral surface of the shelf 13, and as it comes in a wire winding direction, the drum center side groove surface of the wire groove 15 comes close to the center of the drum, and reaches the winding barrel 11. In order to smoothly transfer the wire, a part of an inlet 15a of the wire groove 15 is provided with an inclined surface 17, and furthermore, the flange 12 of the shelf 13 is eliminated in a range from the inlet 15a to a point S appropriately separated from the inlet 15a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum for a striatum which can efficiently and safely wind a power cable, an optical fiber cable, and the like with a reduced number of manual operations.

[0002]

2. Description of the Related Art When a cable as described above is wound on a drum, it is required that the winding start end of the cable can be easily removed from the drum after winding. This is because it is necessary to conduct a continuity test of the cable after winding.

In order to meet this demand, a shelf is provided inside the drum flange on one side, and a communication groove (guide groove) from the shelf to the drum drum is provided on the inner surface of the drum flange on the one side. , The extra length of the required length to be secured at the beginning of the cable is wound around the shelf, and then the cable is introduced into the wire passage groove to reach one end of the winding drum, from which the striated body starts the main winding A drum for use has been proposed in Japanese Utility Model Registration No. 2540942 and the like.

[0004]

The above-mentioned conventional drum requires manual intervention when the cable is transferred from the shelf to the winding drum after the winding of the extra inspection portion on the shelf is completed. .

[0005] That is, since the passage groove enters the inside of the shelf, the cable enters the passage groove from the shelf, and then the cable is wound around the groove surface of the passage groove, and then guided to the winding drum. Along the inner surface of the drum flange
Unless the cable is manually pushed into the passage groove until it is wound over the circumference, the cable comes off from the passage groove or shelf. For this reason, especially when winding a thick cable around a large drum,
A few workers are forced to push into the passage groove, which wastes labor. In addition, in the transition, the rotation of the drum is temporarily stopped, and then the drum is rotated little by little to proceed with the operation, so that the operation time during the operation is lengthened and the operation involves dangers.

Accordingly, an object of the present invention is to provide a drum for a striated body in which a cable from a shelf to a winding drum can be naturally smoothly moved.

[0007]

In order to solve the above-mentioned problems, according to the present invention, a shelf is provided inside the one side of the drum flange so as to wind the extra length on the starting end side of the striated body, and further, the starting end of the striated body is provided. A wire groove provided on the inner side surface of the drum flange on one side, the wire groove gradually approaching the center of the drum and reaching the drum winding drum as going from the shelf having the fixing tool to the winding direction of the wire body. In the drum for use, a series of flanges are provided along the outer peripheral edge of the shelf and the groove center side groove of the communication groove.

[0008] In the linear body drum, an inner side surface of a drum flange connected to a groove surface farther from the center of the drum at the entrance of the passage groove has a slope inclined such that the side closer to the entrance of the passage groove approaches the groove bottom. In addition, it is preferable that the flange of the shelf is removed in a predetermined range from the entrance of the communication groove in the direction in which the filament is wound.

[0009] Further, the communication groove is formed as a curved groove, the radius of curvature at the center of the groove is made larger than the radius of curvature on the inlet side and the outlet side of the groove, and the height of the flange provided at the groove edge of this groove is increased. It is also preferable that the diameter be larger at the center than at the entrance and the exit of the groove.

[0010]

According to the drum of the present invention, the flange provided on the shelf and the passage groove receives the striated body and prevents the line member from coming off from the passage groove and the shelf. In addition, when the above-mentioned flange is provided, the striated body to which tension is applied due to the copying effect is drawn into the inside of the flange, and is naturally introduced into the communication groove. Therefore, when transferring the umbilical member from the shelf to the winding drum through the wire groove, the manual operation conventionally required becomes unnecessary, and the transfer time is shortened.

Further, since there is no need to fix the winding start end of the filament to the outside of the drum flange, the work of fixing and removing the winding start end can be performed easily and safely.

[0012] The inner surface of the drum flange connected to the groove surface on the far side from the center of the drum at the entrance of the passage groove has a slope inclined such that the side closer to the entrance of the passage groove approaches the groove bottom. When the flange of the shelf is removed from the entrance of the groove in a predetermined range in the direction of winding the filament, the filament is smoothly guided from the shelf to the passage groove,
No migration trouble occurs.

In addition, although it is more difficult for the striated body to enter the groove at the center of the groove, the radius of curvature at the center of the groove and the height of the flange at the center of the groove are reduced. When it is made larger, smooth introduction is made even at the center of the groove. When the case where the striated body stretched by applying tension is introduced into the straight groove and the case where the striated body is introduced into the curved groove, the introduction resistance is smaller in the former case. By the same reasoning, the introduction resistance to the groove is reduced, and by making the flange higher, the retraction force applied to the striated body is also increased, thereby facilitating the introduction of the striated body even at the center of the groove. You.

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the illustrated filamentary drum 10 is larger than a winding drum 11, a drum flange 12 provided at both ends thereof, and a winding drum provided inside one of the drum flanges. A cylindrical shelf 13 having a diameter, a fixing device 14 for fixing the starting end of the striated body on the shelf 13, a wire groove 15 provided on the inner side surface 12a of the drum flange, a side outer peripheral edge of the shelf 13, and a wire groove. And a series of flanges 16 provided along the edge of the groove on the drum center side. The drum 10 is supported, for example, by a support shaft 21 via a bearing 20, and transmits a driving force from a driving unit (not shown) via a gear 22 to rotate the drum 10 in a direction indicated by an arrow in FIG. 2.

As shown in FIG. 2, the passage groove 15 is formed as a curved groove, and the groove surface on the drum center side is connected to the outer peripheral surface of the shelf 13. The drum 11 is gradually brought closer to the center of the drum to reach the winding drum 11.

Further, in order to smoothly transfer the striated body from the shelf 13 to the communication groove 15, a slope 17 is provided at the entrance 15a of the communication groove 15, and the inclined surface 17 is appropriately separated from the entrance 15a in FIG. The flange attached to the shelf 13 is removed in the range up to the point S. The slope 17 is the inner surface of the drum flange at the entrance of the communication groove connected to the groove surface of the communication groove 15 remote from the center of the drum,
As shown in FIG. 7, the side near the entrance of the passage groove 15 is inclined in a direction approaching the groove bottom of the groove 15.

Further, in order to facilitate the introduction of the striated body into the passage groove 15, the radius of curvature at the center of the groove 15 is determined by changing the radius of curvature of the entrance 15
The radius of curvature is made larger than the radius of curvature on the side a and on the side of the outlet 15b, and the height of the flange 16 attached to the groove edge of the passage groove 15 is also made nonuniform.
The height of the collar is larger at the center part than at the entrance and exit sides. Reference numeral 18 in FIG. 2 denotes a gap secured between the flange 16 and the groove surface of the communication groove 15 on the side far from the center of the drum.
It is larger than the diameter of the wound filament. As shown in FIG. 8 and FIG. 9, when the inner surface of the flange 16 at the groove edge of the communication groove 15 is inclined, the striated body enters and exits the communication groove 15 more smoothly.

The fixing device 14 may be any as long as it can clamp the starting end of the striated body and fix it to the shelf 13. The location of the fixture 14 is also preferably at the position shown in FIG. 2, but is not limited thereto. The installation point is determined by the relationship between the length of the extra length secured at the start end of the striatum and the diameter of the shelf 13.

The width, curvature, and height of the flange of the groove edge of the wire groove 15 are set to appropriate values according to the thickness, shape, bending stiffness, etc., of the wire to be wound.

Next, a procedure for winding the umbilical member around the exemplary drum 10 will be described. First, as shown in FIG.
The starting end of the striatum A is fixed to the shelf 13 with the fixture 14, and then the drum 10 is rotated in the direction of the arrow in FIG.
Wrap over 3. When the drum 10 rotates substantially once, the communication groove 1
The entrance 15a of the wire 5 comes to the winding point, and the striated body A enters the wire groove 15 from the shelf 13. At this time, the striated body that is about to enter the passage groove 15 is guided by the slope 17 in FIGS. 2 and 7 and guided to the groove 15, so that the striated body does not pass over the entrance 15a and is wound on the shelf 13 again. .

As shown in FIGS. 3 and 5, the striated body A introduced into the passage groove 15 hits a flange 16 at the groove edge to prevent escape from the groove. Further, when the drum 10 further rotates, the unintroduced portion of the striated body to which the winding tension has been applied is successively introduced into the communication groove 15 by the drawing force generated at the contact point with the flange 16, and the groove outlet 15b (FIG. 2, Fig. 6)
Because of the absence of the tension, it naturally goes out of the groove by the tension and moves onto the winding drum 11. Therefore, there is no need for human intervention, which was conventionally required when shifting from the shelf to the winding drum, and after fixing the starting end of the striatum, winding the extra length on the shelf 13 and moving the winding drum 11 from the shelf 13
And winding on the winding drum can be performed continuously without stopping the drum.

[0023]

As described above, in the linear drum according to the present invention, a series of flanges are provided on the outer peripheral edge of the shelf and the groove edge on the drum center side of the communication groove. The transfer of the striated body to the wire, the introduction to the wire groove, and the transfer from the wire groove to the winding drum can be performed by using the tension of the striated body, which simplifies the operation at the time of starting, It becomes possible to perform the winding of the body efficiently and safely with less labor.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a simplified embodiment of a drum according to the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a detailed sectional view taken along line III-III in FIG. 2;

FIG. 4 is a detailed sectional view taken along line IV-IV of FIG. 2;

FIG. 5 is a detailed sectional view taken along line VV of FIG. 2;

FIG. 6 is a detailed sectional view taken along line VI-VI of FIG. 2;

FIG. 7 is a side view of a traffic groove entrance.

FIG. 8 is an enlarged cross-sectional view of a communication groove along a line IV-IV in FIG. 2;

FIG. 9 is a cross-sectional view of the vicinity of an outlet of a communication groove.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Drum for striated body 11 Roller drum 12 Drum flange 12a Inner side surface 13 Shelf 14 Fixture 15 Communication groove 15a Inlet 15b Exit 16 Flange 17 Slope 18 Gap 20 Bearing 21 Shaft A Shaft A

Continuing on the front page (72) Inventor Shigeru Suzuki 1-2-1 Shibaura, Minato-ku, Tokyo Nippon Ocean Undersea Cable Corporation (72) Inventor Katsura Ogura 2-4-1 Awaza, Nishi-ku, Osaka Sumitomo Electric In-company (72) Inventor Hideo Ishizu 1-54, Hirabayashi-minami, Suminoe-ku, Osaka-shi, Osaka F-term (reference) 3F058 AA04 AB03 AC07 AC14 BB19 CA07 DA05 DB05 DC05 HA03 HB02 HB09

Claims (3)

[Claims] 1. A shelf for winding the extra length of the striated body on the inner side of the drum flange on one side, and further from the shelf having a fixture for the striated body's starting end, moving in the direction of winding the striated body. In the striated drum provided with a communication groove gradually approaching the center of the drum and reaching to the drum winding drum on the inner surface of the one-sided drum flange, the outer peripheral edge of the shelf and the drum center groove of the communication groove are provided. A filament for a striatum, wherein a series of flanges are provided along an edge. 2. An inner side surface of a drum flange connected to a groove surface on a side farther from a drum center at a passage groove entrance portion is formed as a slope which is inclined in a direction in which a side near a passage groove entrance approaches a groove bottom. 2. The filament for a filament body according to claim 1, wherein a flange of the shelf is removed within a predetermined range from an entrance of the groove in a direction in which the filament is wound. 3. A groove formed by bending the communication groove so that the radius of curvature at the center of the groove is larger than the radius of curvature at the entrance side and the exit side of the groove. The filament for a striatum according to claim 1 or 2, wherein the height is larger at a central portion than at an inlet side and an outlet side of the groove.