JP2001322767A - Optical fiber winding bobbin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical fiber winding bobbin stably storing a winding start optical fiber at high workability and eliminating any breaking of the optical fiber even in the periphery of a hole part. SOLUTION: This optical fiber winding bobbin 10 is provided with a winding drum 1 being a winding part of the optical fiber f, fixed disk flanges 3 and 3 vertically provided in the both sides of the winding drum 1, having a bobbin shaft hole 2 in its central axis, and having one or more holes for taking out the optical fiber fa in the winding start side in at least one of the flanges, and a disk optical fiber storage part 6 having a shaft hole 2 communicated with the shaft hole 2 and having a winding part 5 for winding the optical fiber fa in the winding start side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bobbin for winding an optical fiber, and more particularly to an optical fiber winding bobbin capable of storing an optical fiber at the beginning of winding.

[0002]

2. Description of the Related Art An optical fiber is drawn by heating and melting a base material mainly composed of quartz glass into a bare optical fiber having a predetermined small diameter, and then continuously protecting the bare optical fiber with a protective resin such as an ultraviolet curing resin. This is performed by applying a coating layer and winding it around a take-up bobbin of a drawing machine. Thereafter, the optical fiber wound around the take-up bobbin is usually wound around a winding machine, and is wound from the take-up bobbin of the wire drawing machine to a required take-up bobbin for each required strip length. As shown in FIG. 3, a conventional optical fiber winding bobbin (20) has a winding drum section (1) which is a winding section of an optical fiber (f) and the winding drum section.
(1) It is provided vertically on both sides of the
Disc-shaped fixed flanges (3), (3) having
Hole for taking out the optical fiber on the winding start side (hereinafter abbreviated as “starting optical fiber”) (fa) provided in (4)
And consisted of When winding the optical fiber (f) onto the winding bobbin (20), take out the winding start optical fiber (fa) from the hole (4) and use a tape (t) to cover the surface of the fixed flange (3). It was fixed. The end of the optical fiber (f) wound around the winding drum (1) is the end of the optical fiber (hereinafter abbreviated as the end optical fiber) (fb).

[0003]

In the conventional optical fiber winding bobbin (20), the starting optical fiber (fa) is used.
Was fixed to the fixed collar (3) with tape (t), but it was unstable and workability was poor. In addition, in the vicinity of the hole (4) provided in the fixed flange (3), the optical fiber is often disconnected, and if it is disconnected, the starting optical fiber (fa) cannot be taken out. However, there is a problem in that the optical fiber is defective. Also, when fixing the starting optical fiber (fa) with tape (t), if the optical fiber is pulled, stress is concentrated on the fiber near the exit of the hole (4), so that the structure is easily broken. There was a problem that there is. The present invention has been made in order to solve the above-mentioned various problems of the related art, and it is possible to stably store the starting optical fiber in a winding bobbin with good workability, and to break the wire near the hole. It is an object of the present invention to provide a bobbin for winding an optical fiber without any.

[0004]

According to a first aspect of the present invention, there is provided a bobbin for winding an optical fiber.
(f) a winding drum section (1) which is a winding section; and the winding drum section (1)
Are installed vertically on both sides of the
Disk-shaped fixed flanges (3), (3) having (2);
Provided on at least one of the fixed flanges (3), (3) and (3),
It has one or more holes (4) for taking out the optical fiber (fa) on the winding start side, and a housing shaft hole (2) communicating with the bobbin shaft hole (2). Disc-shaped optical fiber storage section provided with a winding section (5) for winding the fiber (fa)
(6) An optical fiber winding bobbin comprising:
In the winding bobbin of the first aspect, the winding start optical fiber (fa) is wound and stored in the disk-shaped optical fiber storage section (6), so that the fiber does not become a hindrance during work. Work can be done efficiently. Also, when the optical fiber is pulled, the stress is not concentrated on the optical fiber near the exit of the hole (4), so that the disconnection can be prevented. Further, even if the optical fiber is broken in the middle, it can be avoided by extending the extra length of the optical fiber, so that the optical fiber for one bobbin does not become defective due to the disconnection.

According to a second aspect of the present invention, there is provided an optical fiber winding bobbin detachably attached to the one fixed flange (3). In the winding bobbin according to the second aspect, since the optical fiber storage section (6) is detachably attached to the fixed flange (3), extra space is required when the bobbin is attached to a housing or the like. Nothing.

According to a third aspect of the present invention, in the optical fiber storage section (6), the outer diameter of the side in contact with the fixed flange (3) is reduced, and the shape of the winding section (5) is tapered. It is on the bobbin for winding the optical fiber. In the winding bobbin according to the third aspect, since the shape of the winding portion (5) is tapered, a triangular gap can be formed between the winding bobbin and the fixed flange (3). The winding start optical fiber (fa) can be wound and stored in the portion. In addition, when the optical fiber is attached to a housing or the like, the optical fiber can be easily taken out as a loop by removing the optical fiber housing portion (6).

[0007] As a fourth aspect, the present invention relates to the above-mentioned hole (4)
Instead of this, it is on an optical fiber winding bobbin provided with a slit portion (4 '). In the winding bobbin according to the fourth aspect, the slit (4 ') is used instead of the hole (4).
Is provided, the starting optical fiber (f
The troublesome work of passing through a) is eliminated. The hole
A slit communicating with (4) may be provided.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The contents of the present invention will be described below in more detail with reference to an embodiment shown in the drawings. Note that the present invention is not limited by this. FIG. 1 is a schematic view showing an embodiment of an optical fiber winding bobbin according to the present invention. FIG. 1 (a) is a perspective view, and FIG. 1 (b) is a longitudinal sectional view near an optical fiber storage section. FIG. 2 is a perspective view showing another embodiment of the optical fiber winding bobbin of the present invention. FIG. 3 is a perspective view showing a conventional optical fiber winding bobbin. In these figures, 1 is a winding drum,
2 is a bobbin shaft hole and a housing portion shaft hole, 3 is a fixed flange, 4 is a hole, 4 'is a slit portion, 5 is a winding portion, 6 is a winding start optical fiber housing portion, and 10 and 15 are optical fiber winding portions. Bobbins,
f is an optical fiber, fa is a winding start optical fiber, fb is a winding end optical fiber, and n is a screw.

-Embodiment 1- One embodiment of an optical fiber winding bobbin of the present invention will be described with reference to FIG. The winding bobbin (10) of the present invention comprises a winding drum section which is a winding section of the optical fiber (f).
And a bobbin shaft hole (2) in the center axis thereof, and at least one flange has a winding start side optical fiber (fa). Disc-shaped fixed flanges (3), (3) with one or more holes (4) for taking out
An optical fiber housing section having a housing section shaft hole (2) communicating with the bobbin shaft hole (2), and having a winding section (5) for winding the optical fiber (fa) on the winding start side. (6) The optical fiber storage section (6) is detachably attached to the one fixed flange (3). Further, the optical fiber housing section (6) is a disk-shaped body having a small outer diameter on the side in contact with the fixed flange (3) and a tapered shape of the winding section (5).

Embodiment 2 A second embodiment of the optical fiber winding bobbin of the present invention will be described with reference to FIG. In the winding bobbin (10) of the first embodiment, a slit portion (4 ′) is provided instead of the hole (4), and the other bobbins (15) are manufactured in the same manner as in the first embodiment. did.

Embodiment 3 As an example of the structure of the winding bobbin (10), the bobbin main body has an outer diameter of the winding drum section (1) of 120 mm, a diameter of the bobbin shaft hole (2) of 15 mm, and a fixed state. The outer diameter of the flange (3) is 180 mm, the thickness is 2 mm, and the inner width between the fixed flanges (3) and (3) is 35 mm. 4mm through
Three holes (4) each having a width of 12 mm are provided. The material is aluminum. Various plastic resins can be used as the material. In addition, the dimensions of the optical fiber storage section (6) are such that one outer diameter is 115 mm,
Outer diameter on the side in contact with the fixed collar (3) is 105 mm, thickness is 8 m
m, and the winding portion (5) is tapered. The diameter of the housing hole (2) is the same as that of the bobbin shaft hole (2), and is 15 mm.
mm. The storage section (6) is detachably provided on one fixed flange (3) by, for example, two screws (n). The material is aluminum. Various plastic resins can be used as the material.
For example, an optical fiber having a wire diameter of 0.250 mm is wound about 5 m in the storage section (6). Further, the bobbin (10) is wound around, for example, about 1 km to 20 km. The ends of the start optical fiber (fa) and the end optical fiber (fb) are fixed flanges.
The tape is fixed to (3) (not shown). In order to use the winding bobbin (10) around which the optical fiber is wound as an optical component, it is attached to a housing (not shown), and
Loosen the two screws (n) in (6) and remove them from the fixed collar (3), and take out the winding start optical fiber (fa) in a loop shape. Was efficient. Further, even when the optical fiber was pulled, the stress was not concentrated on the optical fiber near the exit of the hole, so that disconnection could be prevented.

[0012]

According to the winding bobbin of the present invention, the winding start optical fiber is wound and stored in the winding section.
The fiber did not get in the way during the work, and the work became more efficient. Further, even when the optical fiber is pulled, disconnection can be prevented since stress is not concentrated on the optical fiber near the exit of the hole.
In addition, even if the optical fiber is broken in the middle, it can be avoided by extending the extra length of the optical fiber, so that the optical fiber for one bobbin does not become defective due to the disconnection. Further, when the optical fiber housing is detachably attached to the fixed flange, no extra space is required when the bobbin is attached to the housing or the like. Further, when the shape of the winding portion is tapered, a triangular gap can be formed between the winding portion and the fixed flange, and the winding start optical fiber can be wound and stored in this gap portion. became. Also,
When attached to a housing or the like, by removing the optical fiber storage section, the optical fiber can be taken out as a loop. Further, when a slit portion is provided instead of the hole portion, the starting optical fiber can be easily taken out. Therefore, the present invention has an extremely large effect of contributing to industry.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an embodiment of an optical fiber winding bobbin according to the present invention, wherein FIG. 1 (a) is a perspective view and FIG. 1 (b) is a longitudinal sectional view near an optical fiber storage section. .

FIG. 2 is a perspective view showing another embodiment of the optical fiber winding bobbin of the present invention.

FIG. 3 is a perspective view showing a conventional optical fiber winding bobbin.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Winding body part 2 Bobbin shaft hole and storage part shaft hole 3 Fixed flange 4 Hole part 4 'slit part 5 Winding part 6 Winding optical fiber storing part 10, 15 Optical fiber winding bobbin f Optical fiber fa Winding light Fiber fb end optical fiber n screw

Claims (4)

[Claims] 1. A bobbin for winding an optical fiber,
A winding drum (1), which is a winding portion of the optical fiber (f), and a bobbin shaft hole (2) which is provided vertically on both side surfaces of the winding drum (1), and has a central axis thereof. Disc-shaped fixed flanges (3), (3) provided with at least one hole (4) for taking out the optical fiber (fa) on the winding start side in at least one flange, and the bobbin shaft hole The disc-shaped optical fiber housing (6) has a housing shaft hole (2) communicating with (2) and has a winding section (5) for winding the optical fiber (fa) on the winding start side. And a bobbin for winding an optical fiber. 2. The bobbin for winding an optical fiber according to claim 1, wherein said optical fiber storage portion is detachably attached to said one fixed flange. 3. The optical fiber storage section (6) includes a fixed flange.
The bobbin for winding an optical fiber according to claim 1 or 2, wherein the outer diameter of the side in contact with (3) is reduced, and the shape of the winding portion (5) is tapered. 4. A slit instead of the hole (4)
(4 ') is provided.
Or an optical fiber winding bobbin according to 3.