JP5624837B2 - How to store the wire - Google Patents

Description

The present invention relates to a storage how the wire-passing devices.

  In recent years, with the widespread use of the Internet, FTTH (Fiber To The Home) that realizes a high-speed communication service by drawing an optical fiber directly into a general home is rapidly expanding. When an indoor optical fiber is installed in an existing pipe line in which a metal cable such as a telephone line is installed in order to construct an FTTH, a method of connecting the indoor optical fiber into the pipe line by using a line device is common. (For example, see Patent Document 1). Specifically, after pushing the wire-liner into the pipeline and connecting it, an indoor optical fiber is connected to the tip of the wire-liner, and this wire-liner is pulled back to bring the indoor optical fiber into the pipeline. Connect the line. This method of wiring secures the transmission line using a liner having a higher bending rigidity than the indoor optical fiber, so the probability of being able to pass through, for example, a crushed portion in the pipeline is increased. An indoor optical fiber can be efficiently laid in a pipe.

After the above-described wiring work is completed, the wiring device is stored in a dedicated storage case by a worker's manual work (see, for example, Patent Document 2). FIG. 5 is a diagram showing an example of the storing operation.
As shown in FIG. 5, as the storage case 2 of the wire pass device 1, a tubular member in which a part of an annular shape is cut out is used. When storing the wire pass device 1 in the storage case 2, first, the tip of the wire pass device 1 is inserted from the opening (introduction port) 2 a on one end side of the storage case 2, and the inside of the storage case 2 is inserted. It is exposed from the opening (outlet port) 2b on the end side. Then, the tip of the wireliner 1 exposed from the outlet 2b is inserted again from the inlet 2a. By repeating this series of operations, the wire pass device 1 can be stored in the storage case 2 in a loop.

Japanese Patent Application No. 2010-30982 Japanese Patent Laid-Open No. 10-66216

  However, in the conventional storage method, as shown in FIG. 6, when the tip of the wire 1 exposed from the outlet 2b of the storage case 2 is inserted again into the inlet 2a, the tip of the wire 1 is placed in the storage case. Since it does not necessarily go to the 2 inlet 2a, it is necessary to guide to the inlet 2a of the storage case 2 with the hand of an operator. For this reason, especially when storing the long wire 1, the worker needs to perform the operation of guiding the wire 1 several tens of times, and it takes a very long time for the removal work after installing the indoor optical fiber. It took time and effort.

The present invention aims at providing a housing how the wire-passing device capable of improving the workability when accommodating the wire-passing device to the storage case.

The invention described in claim 1 is made in order to achieve the above-mentioned object, and is provided at one end side of a storage case in which the tip of the wire-passage device is molded into an annular shape in which a tubular member is partially cut away. Inserted through the inlet
Push the wire passer through the storage case,
Fixing the tip of the wireliner exposed from the outlet on the other end side of the storage case to a portion of the wireliner not inserted in the storage case;
In this state, the wire passing device is housed in a loop by sequentially pushing the wire passing device into the housing case.

  According to a second aspect of the present invention, in the wiring device storage method according to the first aspect, the tip of the wiring device exposed from the outlet of the storage case is inserted into the storage case of the wiring device. It is characterized in that it is fixed in advance to the part that is not.

  Invention of Claim 3 fixed the front-end | tip of the said wiring device in the part which is not inserted in the said storage case of the said wiring device in the storage method of the wiring device of Claim 1 or 2. In some cases, the shape formed by the wire passing device matches the annular shape of the storage case.

  According to a fourth aspect of the present invention, in the storage method for the wire-passage device according to claim 3, when the tip of the wire-passage device is fixed to a portion of the wire-passage device that is not inserted in the storage case. The diameter of the wire passing device is larger than the inner diameter of the storage case and smaller than the diameter of the storage case. Here, the diameter of the wire passing device is a loop-shaped diameter formed by the wire passing device. The inner diameter of the storage case refers to the inner diameter of the inner wall portion of the storage case (the hollow portion that stores the wire pass device). The diameter of the storage case is the diameter of a circle formed by the central axis of the storage case.

  According to a fifth aspect of the present invention, in the storage method for a wire passing device according to any one of the first to fourth aspects, a dynamic friction coefficient of an inner wall of the storage case is 0.45 or less. .

  According to a sixth aspect of the present invention, in the method for storing a wire-passage device according to any one of the first to fifth aspects, the length of the notched portion of the tubular member is ¼ of the length of the outer periphery. It is characterized by being 1/3 or less.

  According to the present invention, it is not necessary to perform the work of guiding the tip of the wireliner exposed from the outlet of the storage case to the introduction port of the storage case by the operator's hand when storing the wireliner. The workability at the time of storing the wire passer in the storage case can be improved.

It is a figure which shows an example of the accommodation method of the wire-liner which concerns on 1st Embodiment. It is a figure explaining the shape of a storage case. It is a figure which shows an example of the accommodation method of the wire-liner concerning the modification 1. FIG. It is a figure which shows an example of the accommodation method of the wireliner which concerns on 2nd Embodiment. It is a figure which shows an example of the accommodation method of the wireliner which concerns on a prior art. It is a figure explaining the subject in the storage method of the wireliner concerning a prior art.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
Drawing 1 is a figure showing an example of the storing method of the wire line machine concerning a 1st embodiment. FIG. 2 is a diagram illustrating the shape of the storage case.
The wire passing device 1 is configured, for example, by covering three tension members (strength members) together with a jacket. The length of the wire pass device 1 is, for example, about the length of an existing pipe line through which an indoor optical fiber is passed +2 to 3 m.
The storage case 2 is a tubular member (for example, a tube diameter of 6 cm) made of a hard material such as polyvinyl chloride (PVC: PolyVinyl Chloride), and has a substantially annular shape (for example, the ends are separated from each other) , The diameter is 60 cm).
In addition, the storage case 2 is a material for the outer casing of the sliding wire passing device 1 and a material for the storage case 2 in the dynamic friction coefficient of the inner wall, that is, a sheet friction coefficient test in accordance with JIS K 7125. The dynamic friction coefficient is configured to be 0.45 or less. When the dynamic friction coefficient of the inner wall of the storage case 2 is 0.45 or less, resistance due to friction at the time of storage can be reduced, so that it can be stored smoothly and the burden on the operator can be reduced.
The storage case 2 is configured such that the length of the cut-out portion of the tubular member is ¼ or more and 以下 or less of the length of the outer periphery (entire circumference). That is, as shown in FIG. 2, when θ is an angle connecting both ends of the notched portion and the center of the circle, the magnitude of θ is 90 ° ≦ θ ≦ 120 °. When the length of the cut-out portion of the tubular member exceeds 1/3 of the outer peripheral length (for example, 1/2 of the outer peripheral length (θ = 180 degrees)), the operator accommodates the wire-liner 1. When the storage case 2 is carried, the exposed portion of the wireliner 1 is large, so that there is a risk that the operator may bend it with his hand or shoulder, or be caught by a protrusion and be damaged. In addition, there is a possibility that the exposed portion is soiled during storage, and there is a risk that the low friction property of the wire passing device 1 is deteriorated due to the soiling. On the other hand, if the length of the cut-out portion is less than 1/4 of the length of the outer circumference, the opening portion is too small, so the pitch of the storage operation (operation to push the wire 1 through the storage case 2 and insert it) Becomes smaller and imposes a burden on the operator. Therefore, it is desirable that the length of the cut-out portion of the tubular member is ¼ or more and ３ or less (90 degrees ≦ θ ≦ 120 degrees) of the outer peripheral length.

  As shown in FIG. 1 (a), when the wiring device 1 is stored in the storage case 2, first, the wiring device 1 is inserted into the opening (introduction port) 2a on one end side of the storage case 2, and the storage case 2 is inserted, and the tip of the wire 1 is exposed from the opening (lead-out port) 2b on the other end side of the storage case 2.

Next, as shown in FIG.1 (b), the front-end | tip of the wiring device 1 exposed from the outlet 2b of the storage case 2 is fixed to the part in which the wiring device 1 is not accommodated (fixing part 11). . At this time, the position of the fixing portion 11 is adjusted so that the loop shape of the wire passing device 1 substantially matches the shape of the storage case 2.
Here, as a method of fixing the tip of the wire pass device 1 with the fixing portion 11, for example, a method of fixing with an adhesive tape may be mentioned. When it is fixed using an adhesive tape, it can be released freely by peeling off the adhesive tape, and the thickness of the adhesive tape is so thin that it will be an obstacle when it is inserted through the storage case 2. There is no very useful.
At this time, when the diameter of the loop shape formed by the wire passing device 1 (hereinafter, the diameter of the wire connecting device 1) is x, the diameter x of the wire connecting device 1 is defined as follows.
That is, the diameter x of the wire-passing device 1 is the inner diameter a of the storage case 2 (see FIG. 2; here, not the inner diameter of the outer wall portion of the storage case 2 but the hollow portion (inner wall portion) that stores the wire-passing device 1. The diameter of the circle formed by the central axis of the storage case 2 (hereinafter referred to as the diameter of the storage case 2) b (see FIG. 2) is smaller. Because the loop after the second round is laminated outside the loop of the first round, if the value of the diameter x of the wire passer 1 is larger than the diameter b of the storage case 2, the wire passer 1 is pushed in. There is a risk that the work may become cramped or it may not be possible to store everything. Therefore, it is desirable that the diameter x of the wire pass device 1 is larger than the inner diameter a of the storage case 2 and smaller than the diameter b of the storage case 2.

Next, as shown in FIG. 1C, in a state where the tip of the wire pass device 1 is fixed by the fixing portion 11, a normal storage work (work to push the wire pass device 1 into the storage case 2 and insert it). repeat. In this case, since the tip end of the wire pass device 1 is fixed by the fixing portion 11, the wire pass device 1 is sequentially inserted into the storage case 2 and stored in a loop shape only by continuing normal storage work. .
At this time, since the diameter x of the wire passing device 1 is formed so as to be larger than the inner diameter a of the storage case 2 and smaller than the diameter b of the storage case 2, the storage of the wire connecting device 1 can be performed smoothly. It can be carried out.

Thus, in 1st Embodiment, the front-end | tip of the wire_liner 1 is inserted from the inlet 2a of the one end side of the storage case 2 shape | molded by the annular shape which the tubular member cut off part, A portion in which the tip of the wire 1 exposed from the outlet 2b on the other end side of the storage case 2 is not inserted into the storage case 2 of the wire 1 is pushed through the storage case 2 In this state, the wire pass device 1 is sequentially pushed into the storage case 2 to store the wire pass device 1 in a loop.
As a result, it is not necessary to perform the work of guiding the tip of the wireliner 1 exposed from the outlet 2b of the storage case 2 to the introduction port 2a of the storage case 2 by the operator's hand. The workability at the time of storing in the storage case 2 can be improved.

Further, when the tip of the wire passer 1 is fixed to a portion of the wire passer 1 that is not inserted into the storage case 2, the shape formed by the wire passer 1 is an annular shape of the storage case 2. Matches.
Thereby, the workability | operativity at the time of accommodating the wire pass device 1 in the storage case 2 can be improved.

<Modification 1>
FIG. 3 is a diagram illustrating an example of a storage method for the wire-liner according to the first modification. In addition, the wire feeder 1 and storage case 2 which concern on the modification 1 shall have the structure similar to the wire conductor 1 and storage case 2 which concern on 1st Embodiment demonstrated in FIG.

As shown in FIG. 3, in the first modification, the wire 1 is inserted through the inlet 2 a of the storage case 2 and the tip of the wire 1 exposed from the outlet 2 b is fixed in advance by the fixing portion 11. . In the fixing portion 11, the tip of the wire pass device 1 is fixed so that the fixed state is maintained semipermanently.
When performing the storage operation, it is only necessary to repeat a normal storage operation (operation to push the wire 1 into the storage case 2 and insert it). That is, the point which does not perform the operation | work which fixes the front-end | tip of the wire-passage device 1 exposed from the outlet 2b of the storage case 2 with the fixing | fixed part 11 in the case of storage work differs from 1st Embodiment.
This eliminates the need to perform the work of fixing the tip of the wireliner 1 exposed from the outlet 2b of the storage case 2 with the fixing portion 11 during the storage operation. Workability can be improved.

In the storage method of the first modification, the indoor optical fiber is routed by pushing the wire pass device 1 into the pipeline and connecting the indoor optical fiber to the tip of the wire pass device 1. It can be applied only when a retractable wiring method is adopted in which the indoor optical fiber is routed by pulling back the wire 1. This is because the wireliner 1 cannot be removed from the storage case 2.
In the wiring work by the above-described retractable wiring method, the operator inserts the leading end of the wiring device 1 from one end side of the conduit and reaches the other end side, and then an operator accidentally connects the wiring device 1 to the pipe. When pulled up from the other end side of the path, there is a possibility that the rear end (which becomes the front end in the storing operation) of the wire passing device 1 is dragged into the pipe line. However, if the tip of the wireliner 1 exposed from the outlet 2b of the storage case 2 is fixed in advance to a portion of the wireliner 1 that is not inserted into the storage case 2 as in Modification 1, it will temporarily pass. Even if the wire 1 is pulled up from the other end of the pipe, the storage case 2 is caught at the inlet of the pipe, so that the whole line 1 is not dragged into the pipe, resulting in an operation error. Can be prevented.

[Second Embodiment]
FIG. 4 is a diagram illustrating an example of a storage method for the wire-liner according to the second embodiment. Note that the wire pass device 1 used in the second embodiment has the same configuration as the wire pass device 1 used in the first embodiment.
As shown in FIG. 4, the storage case 3 according to the second embodiment is inserted into the storage unit 31 having the same configuration as the storage case 2 (see FIG. 1) shown in the first embodiment, and the storage unit 31. A cylindrical insertion assisting member 32. The insertion assisting member 32 is provided with a connecting portion 33 that can connect the tip of the wire pass device 1.
The insertion assisting member 32 is not particularly limited as long as it is a material that has a loop shape and can be provided with the connection portion 33, but ensures a wide space when the wire 1 is inserted into the storage portion 31. Therefore, it is desirable to have a diameter as small as possible.
The connection part 33 is comprised with the jig | tool which can connect the front-end | tip of the wire_liner 1, for example, can apply the O-type terminal component etc. which can insert the front-end | tip of the wire_liner 1 and torsionally connect. Moreover, you may equip the front-end | tip of the wire pass device 1 with a jig | tool for exclusive use.

When storing the wireliner 1 in the storage case 3, the insertion assisting member 32 is rotated to expose the connection part 33 from the storage part 31, and the tip of the wireliner 1 is connected to the connection part 33. Then, the normal storage work (work for pushing the wire 1 into the storage case 3 and inserting it) is repeated.
Thereby, the operation | work which guide | induces the front-end | tip of the wireliner 1 exposed from the outlet 31b of the storage case 3 to the inlet 31a of the storage case 3, and the front-end | tip of the wireliner 1 exposed from the outlet 31b of the storage case 3 are carried out. Since it is not necessary to perform the work of fixing by the fixing part 11, workability when storing the wire pass device 1 in the storage case 3 can be improved.

  As mentioned above, although concretely demonstrated based on embodiment which concerns on this invention, this invention is not limited to the said embodiment, It can change in the range which does not deviate from the summary.

For example, in the said embodiment, although the method fixed with an adhesive tape is illustrated and demonstrated as a method fixed with the fixing | fixed part 11, it is not limited to this. For example, you may make it fix the front-end | tip of the wire pass device 1 to the part in which the wire pass device 1 is not accommodated with a crimp terminal.
For example, you may make it apply the structure of the connection part 33 of 2nd Embodiment which can connect the front-end | tip of the wire pass device 1 to the fixing | fixed part 11 of 1st Embodiment easily.
In addition, a method of fixing with an adhesive or a method of fixing by heat fusion may be used.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

DESCRIPTION OF SYMBOLS 1 Passage device 11 Fixed part 2,3 Storage case 31 Storage part 32 Insertion auxiliary member 33 Connection part

Claims (6)

Insert the tip of the wire pass through the inlet on the one end side of the storage case formed into an annular shape with a tubular member cut out partly,
Push the wire passer through the storage case,
Fixing the tip of the wireliner exposed from the outlet on the other end side of the storage case to a portion of the wireliner not inserted in the storage case;
In this state, the wire passing device is housed in a loop by sequentially pushing the wire passing device into the housing case.   2. The wireliner according to claim 1, wherein a tip of the wireliner exposed from the outlet of the storage case is fixed in advance to a portion of the wireliner that is not inserted into the storage case. Storage method.   When the tip of the wire passer is fixed to a portion of the wire passer that is not inserted into the storage case, the shape formed by the wire passer matches the annular shape of the storage case. The method of storing a wire-passage device according to claim 1 or 2.   When the tip of the wire passer is fixed to a portion of the wire passer that is not inserted into the storage case, the diameter of the wire passer is larger than the inner diameter of the storage case, and The method for storing a wire-passage device according to claim 3, wherein the method is smaller than the diameter.   5. The storage method for a wire passer according to claim 1, wherein a dynamic friction coefficient of an inner wall of the storage case is 0.45 or less.   The length of the cut-out portion of the tubular member is ¼ or more and 以下 or less of the length of the outer periphery, and the storage of the wire-passage device according to any one of claims 1 to 5 Method.

Images