JPH0489770A - Wire taking up and storing device - Google Patents

Abstract

PURPOSE:To minimize a space necessary for storage without damaging a wire by installing a take-up reel which takes up the wire and a storing body which stores the take-up reel. CONSTITUTION:A wire (optical fiber) 11 which has crossed the inside of a take-up reel 5 is wound on the take-up reel 5, and is delivered to the outside of a storing body 10, passing through a guide part from the inside of the storing body 10 which stores the take-up reel 5. Besides, locking members (6c, 7c), (7b, 6b) restrains the rotation of the take-up reel 5 to hold the wire 11 taken up on the winding reel 5.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a wire winding and storage device that can efficiently store wire rods while avoiding breakage and damage due to bending.
This makes it possible to freely handle the excess length that occurs at the end of a wire such as an optical fiber.

<Prior Art> Conventionally, techniques for winding wire rods have been widely used in a wide variety of fields.

For example, it is often seen not only in the industrial field but also in everyday life. However, most of these technologies are mechanisms in which only one end of the wire is wound up, such as the power cord winding mechanism found in home appliances or the winding mechanism of a tape measure, etc., and the other end of the wire is wound up. Many of the edges are designed without any restrictions.

However, when a wire material is used as a waveguide for optical communications, such as an optical fiber, which transmits an optical signal that enters from one end and is guided inside to the other end, there are various restrictions. exist.

In other words, even when such an optical fiber is to be housed in a certain predetermined space, the optical fiber must not be bent below a predetermined bending radius due to the strength and characteristics of the optical fiber. It is necessary to guarantee this, and it is also necessary to avoid twisting as much as possible. Furthermore, both ends of the optical fiber must always be exposed outside the space in which it is housed so as not to interfere with signal transmission. Therefore, as shown in FIG. 8, the take-up reel 33 is attached by fixing one end to the fixed part 33a and winding the wire onto the take-up reel 33. is not applicable.

For this reason, the conventional technology for processing excess length of optical fibers is
The one shown in Figure 9 was used. In the extra length treatment shown in this figure, the length of the optical fiber 41 is adjusted by rolling it to form a ring inside the storage case 40, and both ends of the optical fiber 41 are discharged from the storage case 40, respectively.

<Problems to be Solved by the Invention> As mentioned above, in the conventional technology, a so-called primitive storage method was adopted in which the optical fiber 41 was rolled up and housed in the storage case 40 as shown in FIG. .

Therefore, the work of bending and storing the optical fiber 41 along the winding shaft 35 is entirely manual work, and sometimes the optical fiber 41 is locally bent too much to a small bending radius. Otherwise, the optical fiber 41 may be damaged. Moreover, if the storage case 40 itself is made smaller for the purpose of space saving, the storage case 40
As things get smaller, storage becomes more difficult.

As described above, an object of the present invention is to propose a winding and storage device that can reduce operational errors that easily occur with conventional techniques and can save space.

<Means for Solving the Problem> The wire rod winding and storage device according to the present invention includes nine take-up reels around which the wire is wound around the outer circumferential surface, and a guide that houses the take-up reels and allows the wire to communicate between the outside and the outside. In the wire winding and storage device, the wire rod winding and storage device has a wire rod storage body that forms a path for the wire rod that traverses the inside of the winding reel in the radial direction, and that the wire rods are engaged with each other in the storage body. A locking member for restraining rotation of the winding reel and the storage body is formed on the winding reel and the storage body.

Function> The wire rod that has traversed the inside of the take-up reel is wound around the take-up reel, and at the same time, the wire rod is fed out of the storage body after passing through the guide part from the storage body that houses the take-up reel B.

Further, the locking member restricts the rotation of the take-up reel and holds the wire wound on the take-up reel in the storage body.

<Embodiment> An application of the first embodiment of the wire winding and storage device of the present invention to storage of optical fibers is shown in FIGS. 1 to 3.
The present embodiment will be explained based on these figures.

As shown in FIG. 1, a pair of adjacent disks 1,
A take-up reel 5 is formed in which the disks 1 and 2 are sandwiched between the connecting plates 3 and 4 by connecting both sides of the disks 2 with a pair of substantially oval connecting plates 3 and 4, respectively.

As shown in FIG. 2, this take-up reel 5 is
It is located between a pair of half cases 6 and 7, and each half case 6, 7 has a figure 5-shaped cross section. Elongated holes 6a and 7a extending upward, leftward and rightward are formed approximately in the center in the vertical direction. On the other hand, a protrusion 6C is formed at one end of the half case 6 to fit into a coupling groove 7b formed in the half case 7, and a protrusion 6C is also formed at one end of the half case 7. A protrusion 7C that fits into the coupling groove 6b is formed. Furthermore, guide portions (not shown) through which optical fibers, which are wire rods, pass are formed adjacent to each of the coupling grooves 6b and 7b.

As shown in FIG. 2, at a position on the connecting plate 3 which is coaxial with the center position of the disk 1, a flange is provided at the tip of the elongated hole 6a to prevent it from being pulled out from the elongated hole 6a. Part 8
The base end portion of the reel shaft 8, which has a shape a, is implanted. Similarly, the connecting plate 4 has a coaxial shape with the disc 2,
A reel shaft 9 having a flange portion 9a is implanted.

With the above configuration, the reel shafts 8 and 9 have elongated holes 6a.

Although it is possible to slide inside the reel shaft 8
, 9 do not fall behind the elongated holes 6a, 7a, and are structured so that they do not separate in the vertical direction in FIG. Therefore, the optical fiber 1 <
After inserting and winding it around the disk 1 of the take-up reel 5,
This device can be used by wiring so that it passes between the disks 1 and 2, is wrapped around the disk 2, and then is discharged from the other guide section (not shown). At this time, an inflection point that changes the bending direction of the optical fiber is formed on the path of the optical fiber located between the disk 1 and the disk 2.

Next, the operating procedure for storing optical fibers using the storage device of the first embodiment will be explained based on FIG. First, FIG. 3 fal shows the initial state of the half case 6.7 in an integrated state before the optical fiber is housed. From this state, slide the half case 6.7 left and right to open the storage body 10 as shown in FIG.
As shown in FIG. Become.

Further, by continuously rotating the take-up reel T5 in the same direction and rotating the take-up reel 5 a necessary number of times, the optical fiber 11 is wound onto the take-up reel 5 for a predetermined length.

When you want to finish the winding operation, as shown in FIG. 3(d), stop the winding reel 5 when the rotation angle of the winding reel 5 is an integral multiple of 180°, and , FIG. 3 fb), slide the half cases 6.7 relative to each other in the opposite direction, and with the take-up reel 5 stored in the storage body 10, connect the protrusions 6c, 7c of the half case 6.7 and the coupling groove 7b. , 6b to connect the half case 6.7 as shown in FIG. 3(e).

Therefore, the take-up reel 5 is fixed in the storage body 10, and even if a force to pull out the optical fiber 11 from the storage body 10 acts on the optical fiber 11, the take-up reel 5 is fixed in the elongated hole 6a, Since it is fixed to the storage body 10 via the reel shafts 8 and 9 passing through the reel 7a, the wound optical fiber 11 will not be pulled out from the storage body 10. In other words, these long holes 6a, ? , a, reel shafts 8, 9, etc. constitute a locking member.

In this example, since the optical fiber is not an ordinary single mode fiber but an optical fiber with high bending strength, the radius R1 of the disks 1 and 2 shown in Fig. 1 is determined based on the reliability of the optical fiber. 15m, which is a range that does not cause any problems.
It was decided to be m. On the other hand, generally 30 mm
When applied to normal single-mode fibers that require a bending radius of This device can also be applied to wire rods.

Next, a second embodiment of the present invention applied to storage of optical fibers is shown in FIG. 4, and this embodiment will be explained based on this figure.

In the first embodiment, the storage body 10 is divided into two parts,
The take-up reel 5 is fixed and released by combining and separating the storage bodies 10. On the other hand, in this embodiment, a rotating shaft 18 is implanted in the center of a take-up reel 15 formed in substantially the same shape as the take-up reel 5, and is spaced a predetermined distance from the rotating shaft 18. An engagement recess 15a, which is one of the locking members for restraining the rotation of the take-up reel 15, is formed on the surface of the take-up reel 15.

The storage body 20, which is formed to sandwich the take-up reel 15 and rotatably supports the take-up reel 15 via the rotating shaft 18ie, is provided with a locking member that is the other locking member that engages with the engaging recess 15a. The mating convex portion 20a is the take-up reel 15
It is placed opposite. Therefore, the distance gliL1 from the rotation shaft 18 to the engagement recess 15a and the distance 111L2 from the rotation shaft 18 to the engagement protrusion 20a are set to be approximately the same dimension.

Further, a guide section 16 that pinches and guides the optical fiber 21 wound around the take-up reel 15 and a guide section (not shown) are attached to each of both ends of the storage body 20.

From the above, when winding the optical fiber 21 using the storage device of this embodiment, for example, the take-up reel 15 is directly held by hand, and the optical fiber 21 is wound in the storage body 20 in the direction indicated by the arrow in FIG. By rotating the reel 15, the optical fiber 21 is wound. After winding up a predetermined amount of the optical fiber 21, the engagement recess 15a and the engagement protrusion 20a are engaged to restrain rotation of the take-up reel 15, so that the optical fiber 21 is not pulled out from the storage body 20. do.

The storage body 20 is formed from a steel plate or the like by press working, and the take-up reel 15 is connected to the storage body 20 and the optical fiber 21.
Polyacetal resin (
It was formed using a material such as DURACON (trade name: DURACON) or tetrafluoroethylene resin (trade name: Teflon).

Next, a third embodiment of the present invention applied to storage of optical fibers is shown in FIGS. 5 to 7, and this embodiment will be explained based on these figures.

As schematically shown in FIG. 6, the optical fiber 31 is pushed through a circular take-up reel 25 for winding the optical fiber 31. They are bent at different bending radii R2 in different bending directions across the inflection point P, and then discharged from the take-up reel 25. That is, the radius of the take-up reel 25 is twice the radius R2, and the optical fiber 31 is wound around the outer periphery of the take-up reel 25 using the radius of the take-up reel 25 as a bending radius.

In addition, the optical fiber 31 is bent within the take-up reel 25 with a bending radius R2, but this radius R2 is set to a value that does not damage the optical fiber 31 or cause problems with its characteristics. is set to .

Therefore, by using such a take-up reel 25, as shown in FIG.
When the take-up reel 25 is rotated in the direction shown by the arrow -C from a) to FIG. , also mutually equal length a2. Take-up reel 2 with b2
It is wound up in 5. At this time, since the optical fiber 31 is wound along the outermost circumference of the take-up reel 25, the optical fiber 31 is wound with a minimum curvature guaranteed by the outer diameter of the take-up reel 25.

The take-up reel 25 described above is then stored in a storage body 30 shown in FIG. 5. The storage body 30 of B is a half case 26.27 that divides the storage body 30 into upper and lower halves.
Each of the half cases 26 and 27 is formed with guide holes 26a and 27a, which serve as guides for drawing the optical fiber 31 into the storage body 30. The take-up reel 25 after winding up a certain amount of fiber 31 can be stored therein.

In addition, when storing B, between the storage body 30 and the take-up reel 25, for example, an engagement protrusion 20a and an engagement recess 15a, which are locking members as in the second embodiment, are combined. A well-known engagement structure or a well-known fitting structure is adopted. , the take-up reel 25 is locked or engaged with a part of the storage body 30 and is fixed.

As a result, the wound optical fiber 31 is protected by the storage body 30 and the rotation of the take-up reel 25 is restrained by the storage body 30, so that the take-up reel 25 cannot rotate within the storage body 30. Therefore, it becomes possible to maintain the wound state of the optical fiber 31.

Although the first to third embodiments have been described above using the wire as an optical fiber, it goes without saying that these embodiments can also be applied to wires other than optical fibers.

Next, a specific example in which the embodiment of the wire winding and storage device of the present invention is applied to an optical fiber will be described below.

Firstly, it can be used in fusion splicing of optical fibers. When fusion splicing optical fibers, steps such as removing the coating, cutting, and fusion splicing of the optical fibers are required, and it is essential to consider in advance the possibility of redoing the work due to a failure in each step. For this reason, it is customary to prepare a long optical fiber so that each process can be repeated to some extent.

Therefore, when storing the optical fiber and the connection point in a predetermined place after fusion splicing, there will always be extra length, but the storage device of the present invention can handle the extra length more easily and compactly than the conventional technology. becomes possible.

For example, when connecting installed optical cables, a large number of connection points must be stored in a connection point storage box called a closure, but the size of the closure is
It must be large enough to fit within the extra space where the optical cable will be laid, and should be as small as possible.

Furthermore, currently used closures occupy a significant amount of space in the optical fiber surplus section.

From the above, if the storage device of the present invention is applied to this location,
It becomes possible to downsize the closure, and miniaturization is of great significance.

Second, it can be used in connector connections for optical fibers. Similar to the fusion splice section, there is always an excess length of optical fiber in the connector connection section, and if the storage device of the present invention is applied to this process, great effects can be obtained.

Thirdly, it can also be used to adjust the cord length of optical fibers used on boats. When wiring between devices using optical fiber, the storage device of the present invention is placed in the middle of the optical fiber.
By attaching it in several places, you can efficiently wind up excess cord and dispose of it neatly.

<Effects of the Invention> The wire rod winding and storage device of the present invention includes a winding reel for winding the wire and a storage body for storing the winding reel, so that it can be stored in a conventional storage case. Since there is no need to bend the wire directly by hand, the wire is not damaged and the space required for storage can be reduced.

[Brief explanation of drawings]

FIG. 1 is a front view of a first embodiment of the wire winding and storage device of the present invention, FIG. 2 is a sectional view of FIG. 1, and FIG. 3 is an explanation showing the operating procedure of the storage device shown in FIG. 1. 4 is a perspective view of a second embodiment of the wire winding and storage device of the present invention, and FIG.
The figure is a perspective view of a third embodiment of the wire winding and storage device of the present invention, FIG. 6 is an explanatory diagram of the winding reel shown in FIG. 5, and FIG. 7 is a winding process using the winding reel shown in FIG. 5. 8 and 9 are front views of the conventional technology. In the drawing, 5, 15, 25 are the take-up reels, 6, 7, 26゜27 are half cases, 6a, 7a are long holes, 8゜9 is the reel shaft,
1.0, 20.30 are storage bodies, 11.21, 31, 41
is an optical fiber, 15a is an engagement recess, and 20a is an engagement protrusion.

Claims (1)

[Claims] In a wire winding and storage device comprising a take-up reel around which a wire is wound on an outer peripheral surface, and a storage body that stores the take-up reel and forms a guide portion through which the wire communicates between the inside and outside, the inside of the take-up reel is A locking member is formed on the take-up reel and the storage body to form a path for the wire rod that traverses the wire rod in a radial direction thereof, and to engage with each other to restrain rotation of the take-up reel within the storage body. Characteristic wire winding and storage device.