JPH0996728A - Bobbin for optical fiber cable, manufacture therefor and bobbin for cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture at low cost and light weight, to improve durability and to facilitate the mass production of the bobbins of different diameters by adopting a corrugated fiberboard member for respective constituting members such as a cable winding part and a frame plate, etc., for constituting the bobbin. SOLUTION: This bobbin 2 is composed by providing the frame plates 5 and 6 on both ends of a cylindrical cable winding part 3 for winding an optical fiber cable and the corrugated fiberboard member is adopted for the respective constituting members such as the cable winding part 3 and the frame plates 5 and 6, etc., for constituting the bobbin 2. By adopting the corrugated fiberboard member for the respective constituting members for constituting the bobbin 2 in such a manner, the cost of the bobbin 2 is remarkably lowered, it is manufactured in the light weight and further, the bobbin 2 made of corrugated fiberboards to be hardly damaged even by an impact such as falling or the like is obtained. Further, since such a manufacture method is adopted, mass productivity is improved and the mass productivity of the bobbins 2 of the different diameters is not obstructed at all.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical fiber cable bobbin, a method for manufacturing the same, and a cable bobbin.

[0002]

2. Description of the Related Art Conventionally, there have been proposed various cable bobbins for winding, for example, an optical fiber cable or the like (hereinafter referred to as a cable). For example, when the cable bobbin is formed of a metal member, the strength is increased. Although it is extremely difficult to manufacture due to high cost, and further, there is a problem that it becomes very heavy, so recently, it has come to form a bobbin for a cable with a synthetic resin member (hereinafter, It is called a conventional example.)

[0003]

However, the conventional example has the following problems.

Since the synthetic resin member is adopted, the strength against the impact such as a drop is weak and it is very easy to be damaged. (Even if the bobbin is formed to be thick for the purpose of increasing the strength, not only can the effect not be expected, It just becomes heavier, and the meaning of using a synthetic resin member is lost.)

Molding is generally adopted for bobbins made of synthetic resin. Therefore, for example, in order to make bottles having different diameters, it is naturally necessary to make a mold for each product, resulting in a very high cost.

As described above, the conventional example has various problems, and a solution to this problem has not been proposed yet.

The present invention provides a bobbin for an optical fiber cable, a method of manufacturing the same, and a bobbin for a cable which solve the above-mentioned problems.

[0008]

The gist of the present invention will be described with reference to the accompanying drawings.

A bobbin for an optical fiber cable in which a tubular cable winding portion 3 around which the optical fiber cable 1 is wound is provided with collar plates 5 and 6 at both ends, and the bobbin 2 comprises a cable winding portion 3 and a collar. The present invention relates to a bobbin for an optical fiber cable, characterized in that a corrugated board member is adopted as each of the constituent members such as the plates 5 and 6.

Collar plates 5 and 6 are provided at both ends of a cylindrical cable winding portion 3 around which the optical fiber cable 1 is wound.
A method for manufacturing a bobbin for an optical fiber cable in which a cable winding storage space 7 is formed between 6 and an annular corrugated cardboard member 5 or 6 which forms a collar plate 5 or 6 from a corrugated cardboard member having a predetermined shape, and a cable winding. The rectangular corrugated cardboard members 8 and 9 forming the turning portion 3 are punched out, and the corrugated cardboard members 8 and 9 are wound in an annular shape to fix the ends to form cylindrical bodies 3a and 3b having different inner diameters, These cylindrical bodies 3a and 3
The punched collar plates 5 and 6 are fixed to the end portions of b respectively to form the right body 21 and the left body 19, and the tubular body 3a of the left body 19 is fitted with the tubular body 3b of the right body 21. The present invention relates to a method of manufacturing a bobbin for an optical fiber cable, characterized in that the both are fitted and connected.

In the method of manufacturing a bobbin for an optical fiber cable according to a second aspect of the present invention, the collar plates 5 and 6 are respectively provided with inner members 5a.
・ A two-layer structure of 6a and outer members 5b and 6b is set, and the directions of the reinforcing corrugations 10 formed on the corrugated cardboard members of the inner members 5a and 6a and the outer members 5b and 6b are made different. The present invention relates to a method of manufacturing a bobbin for a characteristic optical fiber cable.

In the method for manufacturing the bobbin for an optical fiber cable according to any one of claims 2 and 3, the corrugated cardboard members 8 and 9 are wound in an annular shape and the ends thereof are fixed to each other so that the cylindrical body 3a. The present invention relates to a method for manufacturing a bobbin for an optical fiber cable, characterized in that the corrugated cardboard members 8 and 9 are held in advance by a rotating roller 11 to give a bending tendency when forming 3b.

In the method of manufacturing a bobbin for an optical fiber cable according to any one of claims 2, 3 and 4, a cable winding storage space 7 is fitted into a cable winding portion 3 from a corrugated cardboard member having a predetermined shape. A rectangular corrugated cardboard member which constitutes an annular corrugated member 4 which constitutes the partition member 4 and a tubular member 12 which is fitted to the cable winding portion 3 adjacent to the annular partition member 4 is punched out, and A tubular member 12 is formed by winding a corrugated board member in an annular shape and fixing the ends thereof. The tubular body 3a of the left body 19 and the tubular body 3b of the right body 21 are formed.
When fitting, the tubular member 12 is fitted to the tubular body 3a, the annular partition body 4 is fitted, and the annular partition body 4 is sandwiched between the tubular member 12 and the tubular body 3b. Then, the present invention relates to a method of manufacturing a bobbin for an optical fiber cable, characterized in that a part of the annular partition body 4 is cut out to form a cutout portion 4a.

In the method for manufacturing an optical fiber cable bobbin according to claim 5, when the tubular member 12 is formed of a rectangular corrugated cardboard member, the corrugated cardboard member is previously held by the rotating roller 11 to give a bending tendency. The present invention relates to a method for manufacturing a bobbin for optical fiber cables.

Collar plates 5 and 6 are provided at both ends of a tubular cable winding portion 3 around which a cable such as the optical fiber cable 1 is wound, and a cable winding storage space 7 is formed between the collar plates 5 and 6. In the cable bobbin, the annular partition body 4 for partitioning the cable winding storage space 7 is fitted and fixed near one end of the cable winding portion 3, and the annular partition body 4 is provided with a cutout portion 4a. The present invention relates to a cable bobbin provided.

[0016]

[Operation and effect of the invention]

The operation and effect of the invention according to claim 1 The optical fiber cable 1 is appropriately wound and stored in the cable winding portion 3 of the bobbin 2 in which a corrugated board member is used for each constituent member.

According to the present invention, by adopting a corrugated board member for each of the constituent members of the bobbin 2 as described above, the bobbin 2 can be manufactured at a very low cost and in a light weight, and further, the impact such as a drop can be achieved. Therefore, it is possible to provide the corrugated cardboard bobbin 2 that is not easily damaged.

Since the present invention adopts the manufacturing method as described above, the mass productivity is improved, and the mass productivity of the bobbins 2 having different diameters is not hindered at all.

The operation and effect of the invention according to claim 7 In the present invention, when the cable is wound around the bobbin 2, the narrower cable winding storage space 7a partitioned by the annular partition body 4 is provided.
After the cable is wound around, the cable is wound around the wider cable winding storage space 7b by passing through the notch 4a.

In general, a cable of several hundred meters is wound around the bobbin 2 by the rotating device 15 at high speed. Then, after the winding is completed, the connectors 13 are connected to both ends of the cable.

By the way, the starting end of the cable is a connector later.
In order to connect 13 (of course, the connector 13 is also connected to the terminal end), the winding of this cable is performed with the starting end being extended by a predetermined length.

Therefore, if the annular partition 4 is not present in the cable bobbin, the starting end of the cable will be wound around the cable as the bobbin 2 rotates, and the starting end of the cable will be buried in the wound cable. The operator has to carry out the winding work in consideration of the fact that the starting end of the cable is not caught, which is very troublesome.

In this respect, the cable winding portion 3 as in the present invention.
An annular partition 4 is formed to partition the cable winding storage space 7, the beginning end of the cable is disposed in one cable winding storage space 7a, and the cable is wound in the other cable winding storage space 7b. By doing so, the problem that the starting end of the cable is buried in the wound cable is solved, and therefore the winding of the cable is performed very well.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION In this embodiment, a bobbin 2 for winding an optical fiber cable 1 to enable storage is formed by a corrugated cardboard member. The one with two layers is used.

A corrugated board member 22
6, the inner members 5a and 6a, the outer members 5b and 6b, and the annular partition body 4 are formed.

A hole 14 having a predetermined diameter is formed in the center of each of the outer members 5b and 6b, and the hole 14 is formed in the bobbin 2.
When the optical fiber cable 1 is wound around the shaft 15, the shaft 15a provided on the rotating device 15 is inserted therethrough. Also this hole
In the vicinity of 14 is a small hole through which the pin 15b of the rotating device 15 is inserted.
16 are provided.

The inner members 5a and 6a have the above-mentioned holes at the center.
A large diameter hole 17 is formed in a concentric circle with the hole 14.
Reference numeral 17 designates the inner member 5a or 6a for the cable winding portion 3 (cylindrical body 3a
-For fitting in 3b).

The annular partition body 4 has a hole in the center thereof for fitting the annular partition body 4 on the cable winding portion 3 (cylindrical body 3a).
18 is formed, and further, at a suitable position of the annular partition body 4, a part is cut out after the bobbin 2 is assembled, and the cutout portion 4a is formed.
Is provided with perforations for forming the. If the notch 4a is formed in the annular partition body 4 from the beginning, the annular partition body 4 is distorted during assembly and is less likely to be fitted into the tubular body 3a. Therefore, the notch portion 4a is formed after the bobbin 2 is assembled. I am trying to do it.

The tubular body 3a and the tubular body 3b constituting the cable winding portion 3 are formed by punching a rectangular corrugated cardboard member 8 or 9 with a rotating roller 11 shown in FIG. After that, the ends are adhered with an adhesive to form a tubular shape.

Further, at one end of the cylindrical body 3a and the cylindrical body 3b, separating pieces 8a and 9a which are appropriately separated and bent outwardly are formed.
Are formed radially.

In this embodiment, the bonding ends of the corrugated cardboard members 8 and 9 are superposed on each other and the cylindrical body 3a is used.
When the tubular body 3b is fitted in, the tubular body 3b is fitted in the tubular body 3a so that the superposed portions face each other, so that the steps 23 and 24 formed in both the superposed portions are exactly concave and convex. Together,
Therefore, it is possible to prevent the unevenness of the cable winding portion 3 due to the steps 23 and 24 as much as possible, and the winding of the optical fiber cable 1 can be performed satisfactorily.

The tubular member 12 is also formed into an annular shape by bending the rectangular corrugated cardboard member punched from the corrugated cardboard members 8 and 9 with the rotating roller 11 and adhering both ends with an adhesive. It was done.

When forming the cylindrical bodies 3a and 3b and the cylindrical member 12, it is possible to use a mold or the like to give a crease, but as in this embodiment, a means for giving a bending habit by the rotating roller 11 is efficient. Most desirable in terms of good.

Next, a process of forming the bobbin 2 with the above-mentioned respective components will be described with reference to FIGS.

An adhesive is applied to the outer surface of the inner member 6a, and the inner member 6a is fitted on the cylindrical body 3a to bond the inner member 6a and the separating piece 8a, and further to the outer surface of the separating piece 8a. An adhesive is applied and the left member 19 is formed by bonding the outer member 6b and the inner member 6a while sandwiching the separating piece 8a.

At this time, the reinforcing corrugations 10 of the outer member 6b and the inner member 6a are arranged so that the reinforcing corrugations 10 are orthogonal to each other in order to increase the strength.

Then, similarly, the outer member 5b and the inner member 5 are formed.
The right body 21 is formed by a and the cylindrical body 3b.

A tape such as a kraft tape 20 is attached to the joint portion of the cylindrical body 3b formed by joining the end portions of the corrugated board member 9 to eliminate the step as much as possible. The craft tape 20 or the like is not necessary at the joint portion of the cylindrical body 3a. This is because the tubular body 3a is fitted in the tubular body 3b and the optical fiber cable 1 is not wound.

Subsequently, the tubular member 12 and the annular partition 4 are fitted on the tubular body 3a of the left body 19 and adhered with an adhesive (note that the end portion of the rectangular corrugated cardboard member is fitted and formed. Cylindrical member 12
The kraft tape 20 is attached to the joint of the same as the cylinder 3b.
Attach tapes, etc. to eliminate the steps as much as possible. ).

Subsequently, the cylindrical body 3a of the left body 19 is fitted with the cylindrical body 3b of the right body 21 and adhered with an adhesive to form the corrugated bobbin 2. This bobbin 2 is a cable winding storage space 7
Becomes a bobbin 2 which is divided into two by the annular partition body 4. The narrower cable winding storage space 7a of the cable winding storage space 7 is set to a size in which at least the connector 13 can be arranged. That is, the cable winding storage space 7
The position of the annular partition body 4 (the length of the tubular member 12) is set so that the connector 13 is disposed at a. In addition, the collar plate 5
The height from the outer peripheral surface of the cable winding portion 3 of 6 is also appropriately set for the same purpose.

The annular partition body 4 of the bobbin 2 according to this embodiment.
After cutting the perforations to form the cutout portion 4a, the bobbin 2 is fitted and continuously connected to the rotating device 15 using the shaft 15a and the pin 15b, and both ends are manually inserted into the cable winding storage space 7a. After the optical fiber cable 1 having been subjected to the terminal treatment is wound several times, the optical fiber cable 1 is moved to the cable winding storage space 7b through the notch 4a, and the rotating device 15 is operated to operate the cable winding storage space 7b. The optical fiber cable 1 is wound and stored. Then, a connector 13 is continuously provided at the starting end and the terminating end of the optical fiber cable 1, and the connector 13 and the optical fiber cable 1 are appropriately fixed at appropriate places with a craft tape 20 or the like.

Therefore, according to the present embodiment, by adopting the corrugated cardboard members as the respective constituent members of the bobbin 2, the bobbin 2 can be manufactured at a very low cost and in a light weight,
In addition, it is less likely to be damaged by impact such as dropping, and
The mass production of the bobbins 2 having different diameters becomes good.

Further, by partitioning the cable winding storage space 7 by the annular partition body 4, it is possible to surely eliminate the above-mentioned troublesomeness of the winding process, so that the bobbin 2 is provided.
Therefore, the optical fiber cable 1 can be wound well.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a manufacturing process of the present embodiment.

FIG. 2 is a drawing explaining the manufacturing process of this embodiment.

FIG. 3 is a drawing explaining the manufacturing process of this embodiment.

FIG. 4 is a drawing explaining the manufacturing process of this embodiment.

FIG. 5 is a drawing explaining the manufacturing process of this embodiment.

FIG. 6 is a drawing explaining the manufacturing process of this embodiment.

FIG. 7 is an exploded perspective view of the bobbin 2 according to the present embodiment.

FIG. 8 is a front view showing a usage state of the bobbin 2 according to the present embodiment.

FIG. 9 is a cross-sectional view showing a usage state of the bobbin 2 according to the present embodiment.

[Explanation of symbols]

 1 optical fiber cable 2 bobbin 3 cable winding part 3a cylinder 3b cylinder 4 annular partition 4a notch 5 collar plate 5a inner member 5b outer member 6 collar plate 6a inner member 6b outer member 7 cable winding storage space 8 corrugated cardboard member 9 Corrugated cardboard member 10 Reinforcing corrugation 11 Rotating roller 12 Cylindrical member 19 Left body 21 Right body

Claims (7)

[Claims] 1. A bobbin for an optical fiber cable, comprising a tubular cable winding portion around which an optical fiber cable is wound, and collar plates provided at both ends thereof, wherein the bobbin comprises a cable winding portion, a collar plate and the like. A bobbin for an optical fiber cable, characterized in that a corrugated cardboard member is used as the member. 2. A method of manufacturing a bobbin for an optical fiber cable, wherein a tubular plate for winding an optical fiber cable is provided with a collar plate at both ends thereof, and a cable winding storage space is formed between the collar plates. Punch out the corrugated cardboard member that forms the guard plate and the corrugated cardboard member that forms the cable winding part from the corrugated cardboard member of a predetermined shape, and wind each corrugated cardboard member in an annular shape to secure the ends. To form a cylindrical body having a different inner diameter, and the punched collar plates are fixed to the ends of the respective cylindrical bodies to form a right body and a left body. A method for manufacturing a bobbin for an optical fiber cable, characterized in that the two bodies are fitted and connected by fitting them together. 3. The method for manufacturing an optical fiber cable bobbin according to claim 2, wherein the collar plate has a two-layer structure including an inner member and an outer member, and is formed on a corrugated cardboard member of the inner member and the outer member. A method for manufacturing a bobbin for an optical fiber cable, characterized in that the directions of the reinforcing corrugations are made different. 4. The method of manufacturing a bobbin for an optical fiber cable according to claim 2, wherein a corrugated board member is wound in an annular shape and ends thereof are fixed to each other to form a tubular body having a different inner diameter. In this case, the corrugated cardboard member is sandwiched in advance by a rotating roller so as to give a bending tendency, and a bobbin for an optical fiber cable is produced. 5. A method for manufacturing a bobbin for an optical fiber cable according to claim 2,
An annular corrugated cardboard member which is fitted from the corrugated board member of a predetermined shape to the cable winding part to partition the cable winding storage space, and a tube which is fitted to the cable winding part adjacent to the annular partition body. The corrugated cardboard member that forms the strip-shaped member is punched out, and this corrugated cardboard member is wound in an annular shape to fix the ends to form a tubular member. When fitting the tubular member, the tubular member is fitted, and the annular partition member is fitted, and the annular partition member is sandwiched between the tubular member and the tubular member, and then the annular partition member. A method for manufacturing a bobbin for an optical fiber cable, characterized in that a notch is formed by notching a part of the. 6. The method of manufacturing a bobbin for an optical fiber cable according to claim 5, wherein when the tubular member is formed of a rectangular corrugated cardboard member, the corrugated cardboard member is held in advance by a rotating roller to give a bending tendency. A method for manufacturing a bobbin for an optical fiber cable, characterized in that 7. A bobbin for a cable, wherein a tubular cable winding portion around which a cable such as an optical fiber cable is wound is provided with flange plates at both ends, and a cable winding storage space is formed between the flange plates. A bobbin for a cable, characterized in that an annular partition body for partitioning the cable winding storage space is fitted and fixed near one end of the cable winding portion, and a cutout part of which is cut out is provided in the annular partition body.