TW200900773A - Optical cable and its installation method - Google Patents

Abstract

Provided is an optical cable which can be installed by a work equivalent to a normal self-support type optical cable. Moreover, the optical cable has a wound portion subjected to a curling process for the spare length which can easily be handled. The optical cable can easily be installed. A method for installing the cable is also provided. An optical cable (11, 11') includes a body portion (12, 12') having an optical fiber core coated with an outer coat and a suspension portion (13) connected to and integrated with the body portion via a head portion which can easily be separated. At one cable end, the body portion (12, 12') is separated from the suspension portion (13). The separated body portion (12, 12') has a winding portion (17) formed by a plurality of winding turns with a diameter not smaller than the allowed curve diameter of the optical fiber and wound/held on the suspension portion (13). The cylindrical winding portion (13) of the separated body portion (12, 12') may be formed by a curling process.

Description

200900773 IX. Description of the Invention: [Technical Field] The present invention relates to an optical cable and a method of arranging the same, and is used for connection from a mains cable to a user's home via a closed box. [Prior Art] Due to the expansion of broadband services such as downloading, downloading, live communication, and data communication in recent years, the home of optical fiber is used.

The number of users of Cj's data communication service (TMmTheHome, fiber-to-the-home) has increased. In this case, the FTTMm is used, for example, as a viewer, and is connected to the user's home or the like from the suspended main line light I via the closed box. The connection system to the optical fiber of the user's home is performed in the following manner: as shown in FIG. 20, the main line environment of the utility pole, such as a telephone pole, is placed in a junction box commonly referred to as a closed box. The fiber is then connected to the incoming cable. In terms of the use of the lead-in π y into the first cable, the fiber in the cable is generally formed by one to several fewer cores. Fig. 21 is a view showing an example of a general introduction cable; Fig. 21 (a) is a dry book, and the cable is not first, and the cross section is rectangular.

Winding body part 2 and round! The coin line portion 3 of the ^Q is a structure in which the neck portion 4 is integrated. In the cable 丨 shown in Fig. 21(B), the cable body portion 2' having the dome-shaped dome shape is connected to the circular slinger 3 in the same manner as the neck portion 4. The cable main body portion 2 of Fig. 21(A) is provided with a tensile member 6' on both sides of the preceding magnetic core wire 5, and the outer portion of the main body portion is 7 (for example, the long side) The side is 3 mm, and the short side is 2 mm. The optical fiber core 5 is coated with a standard 129594.doc 200900773 outer diameter glass fiber of 125 μηι with a protective coating of an outer diameter of 25 〇 μηι. The tensile member 6 is a non-metallic wire in which a steel wire or a high-strength fiber is reinforced with a matrix resin. Further, a V-shaped groove 8 is formed on the side of the cable body portion 2, and the groove portion tears the outer portion 7 of the body portion, and the inner optical fiber core 5 is taken out to make the bifurcation connection and the terminal formation. Easy to carry out.

缆 In the cable main body portion 2 of Fig. 21(B), a nucleus fiber 6' such as an ammonia fiber is disposed around the optical fiber core 5, and the main body portion of the cross-sectional circular shape is 7' (for example, It is formed by coating with a diameter of 2 mm. The high-strength fiber 6 has a function as a buffer and a tensile material for the optical fiber core. The hanging wire portion 3 is formed by, for example, covering the outer circumference of the support wire 9 formed of a steel wire of a degree of 1.2 mm (|), and being covered with 1G outside the wire. The same resin material such as polyethylene is used in the outer portion of the main body portion and the outer portion of the suspension wire. The two are connected to each other by a neck portion 4 having a narrow width, and are formed by extrusion molding. . Further, the indoor optical cable used in the indoor wiring can be used by removing the shape of the cable main body portions 2 and 2 after the light hanging wire portion 3. In the case of large-scale condominiums, this indoor optical cable is used to diverge the optical fiber from the main-line light that is introduced into the building, and is used for optical wiring to each household. In response to the increasing demand for such optical winding arrangements, the rapid development of the installation of optical windings and indoor cables has been expected. The situation of the operation of the main line light from the suspended main line is often carried out under the condition that the industrial environment on the utility pole or the loading vehicle is not good, so (4) is not easy and time consuming. For a specific length, the fiber core is taken out from the slow line, and the fiber is ganged into (four) fusion connection and reinforcement treatment. Based on 129594.doc 200900773, it is possible to reduce the burden on the site by pre-installing the optical connector at both ends of the cable cut to a certain length. In this case, the optical connector is pre-installed at both ends of the optical cable to achieve the political rate of the connection, and at the same time, the bending portion is provided in the optical cable, as the residual length is variable, and the 乂 absorbs the error of the δ length (for example, reference non- Patent Document 0, and also by the method. By crimping the entire length of the light, the winding is set to f "x

The hanging wire is extended to the length direction g, and the simplification of the arranging work is achieved (for example, 'Reference Patent Document 1). Document 1] 曰 公开 公开 曰 公报 非 非 非 非 非 非 非 非 非 非 非 非 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户 户Communication Association, December 2006, P.64-65 [Summary of the Invention] [The problem to be solved by the invention] and the optical cable disclosed in Non-Patent Document i is laid on an underground pipeline including a manhole cover. The light gauge is the object, and since it is not necessary to hang the light of the wire portion, it is difficult to carry out the connection from the suspended light line. In addition, it is not specifically disclosed for the protection and storage of the part that is used to make the excess length variable. People's literature. V, the hole rp deep Shaojing cable, although it can be carried out from the dangling The money that is introduced, but the line that is wrapped around the wire or the wire of the wire (four) is carried out. The money of the patent document 1 is set to 129594.doc 200900773, which is set as the object, so it uses 6 ^ ^ ^ Again, when there is no wire in the layout of the cable, it is necessary to have this cable. & Belle must additionally lay the wire. In addition, I hold the pre-wired suspension wire, and it is necessary to carry out the crimping process. For this reason, there is still a need for the W-winding operation in the processing of the work, and the curling of the knife in the transport t will become longer or curved. In addition, if the light gauge that has been bent is supported by the hanging wire, etc., the b or the u may be cut due to the adhesion or external pressure of the ice and snow, and the friction may be caused by the wind and the vibration. After that. In addition, there are also cases where birds such as crows use the bent part of the bend as a material for nesting to pull or play; and in the loosely wound part, insects nest, etc. problem. In view of the above facts, an object of the present invention is to provide an optical cable and a method for arranging the same, which can perform the same processing as a conventional self-supporting optical cable, and then perform the crimping process for the excess length processing. The processor of the winding portion is processed or laid. Further, an object of the present invention is to provide a light-viewing system in which a winding portion for variable length is used for compact storage and keeping it in compliance with birds and the like, and it is easy to perform the laying operation, the remaining length adjustment, and the transportation. Wait for the handler. [Technical means for solving the problem] The optical cable of the present invention includes: a main body portion 'covered with an optical fiber core wire' and a hanging wire portion' which is connected to the main body portion by a neck portion which is easily separated, and is wound around one side The wire end side separates the body portion and the hanging wire portion, and the separated body portion has a winding portion formed by a plurality of winding rings 129594.doc 200900773 wound with a diameter larger than the allowable bending diameter of the optical fiber, and the winding is held in the hanging wire Ministry. The cylindrical wound portion of the separated body portion described above can be formed by crimping. Further, the 自由/又' may include a straight portion which is not crimped at the free end side of the cylindrically wound portion which is crimped. Further, the wound portion to be crimped is in the intermediate position to the "reverse winding direction", or the winding portion is not twisted in the winding in order to elongate in the longitudinal direction, and is reciprocated in advance. The direction twisting and crimping processing. Further, it is preferable to mount the optical connector at the cable end of at least one of the light windings. The light mirror of the present invention is laid by using the light beam as described above and wound on the hanging wire portion. The length direction of the main hanging wire portion of the winding portion q is elongated. X, the winding portion of the inner portion of the winding portion is attached so that the body portion is tightly attached to the outer circumference of the hanging wire portion and wound Pulling f, and concentrating the remaining winding portions and converging on the terminal end side of the winding portion. Further, the winding portion is bundled into a cylindrical shape, and the cylindrical openings at both ends are given In addition, the light according to the present invention is characterized in that the material is covered with an optical fiber: the body portion of the wire and a part of the cable is formed by a roll containing a plurality of winding rings. And winding the wound portion around the wound body, the aforementioned roll The coil is wound with a diameter larger than the allowable radius of the optical fiber. Further, the outer diameter of the wound body is preferably formed by a diameter larger than the allowable bending diameter of the optical fiber. It is supported by the plug-in. This is the case where the winding body is preferably provided with a slit that can be loaded and unloaded from the side to the hanging wire. 129594.doc -10· 200900773 By setting the gap, whether or not the hanging wire is inserted into the winding The body can be easily removed from the winding portion. Further, the outer surface of the wound body is placed at a specific interval to the & direction 9 and the tension of the winding of the winding portion is set, and The interval between the protrusions is formed by 5 to 10 times the diameter of the main portion of the cable, and the elongation is facilitated. Further, the winding body is formed into a tapered shape which is tapered toward the elongated side of the winding portion. Further, it is easy to stretch, and a groove is provided in the circumferential direction at a specific interval in the axial direction of the wound body, or a plurality of cylinders in which the wound body is divided in the axial direction. Body formation, becoming arbitrarily long The wound body may be partially removed after the winding portion is elongated. [Effects of the Invention] According to the present invention, the same type as the conventional self-supporting cable can be used, and the k-day guard can be used. It can be used for the drawing operation under the glare. In addition, it can be used for the error of the length of the cylindrical winding portion of the excess length, and the processing of the winding portion can be facilitated, and the appearance of the compacting and converging is improved. The layout type can minimize the damage from birds, animals, etc. Further, according to the present invention, the winding portion for the excess length of the absorption cable is lengthwise, and the winding portion is used to eliminate the scattering of the winding ring. The winding portion can be prevented from being stretched, bent, or subjected to side pressure deformation during transportation. Further, after the cable is laid, the winding portion can be minimized by the bird. [Embodiment] An embodiment of the invention. Fig. 1(A) is a view showing a cable pull-down type using the optical cable according to the present invention, and Fig. 1(B) and Fig. 1(c) are 129594.doc 11 200900773 showing light including the hanging portion used in the present invention. A diagram of the composition of the example. The figure shows u, u, light iron, 12, 12, main body part, 13 series suspension line part, 14 series neck part, 15 series connection-body part, 16 series separation part, 17 series winding part, 1 8 series optical connector. As shown in Fig. 1 (8), the optical cable used in the present invention is, for example, a cable having the same rectangular shape as that described in Fig. 21(A). Here, the detailed description of the optical winding u is omitted, and the material main body portion 12 is provided with tensile members on both sides of the optical fiber core of one or more optical fibers, and is surrounded by a body portion having a rectangular cross section (for example, the long side 3_, It is formed by coating on the short side. The fiber optic rider coats a standard outer diameter of 125 _ glass fiber with a protective cover of the outer diameter. The tensile material is formed of a non-metallic wire rod, and the high strength fiber is reinforced with a matrix resin. Further, the V-shaped groove σ is also provided on the side of the cable main body portion 12, but it may be a shape having no groove. Further, as shown in Fig. 1(c), the other optical cable 11 used in the present invention is used, and the 5' system has a circle similar to that of the present invention in Fig. 21(B). The first, the view of the shape of the cable. Here, the optical cable 省略 is omitted, but the cable main body portion 12 is disposed around the optical fiber core line to be called the surface I fiber-specific two-strength fiber, and the body portion of the d-plane 0 shape is used. The outer quilt (gentleman-private-b) is formed by coating. The strength fiber system is used as a fiber. , ', complex buffer and tensile material work, the above-mentioned optical cable 11, 1 吊 线 部 13 13 13 13 13 13 13 13 如 如 如 如 如 如 如 如 如 如 如 如 如 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 Μ 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体The body of the body is connected to the head of the thin width 4, and the hanging portion 3 is the body portion 1 ... the hanging portion 13 is connected to each other: Therefore, the neck portion 14 can be easily cut by the hand. Separation; chemical, but can be used as shown in Figure 1 (A), according to the use of the light, 1w, the system can be used as the introduction of light, see the "from the erection of the pole to pick up At home, ff look at this + 4 light, 'see C to close the fiber lead: two 'main line light, · the fiber's points are also

^ ❸ ❸ 1, U, is optically connected to the fiber after the split. As will be described later, the light (4) and the U-system include a portion 15 in which the body portion U portion (10) is connected and the body portion 12, and a portion 16β in which the body portions 12 and 12 are separated, and the body portion 2 and the second system 3 of the separated portion 16 are separated. The cylindrical winding portion 17 is wound around the separated suspension wire portion 13. On the other hand, the hanging wire portion U for forming the excess length is laid by the existing mounting cable R' or the other structure, and the mounting fixture R' is laid along the optical path. Further, in the case where the spiral hanger 8 has been disposed in the already-provided main line light red, it is also possible to arrange the light or the cable ibir. Further, the optical cable is cut and cut: a specific length is used, and at least one of the ends is attached to the optical connector 18 to be disposed. By this means, it is preferable to shorten the wiring work. Further, the optical connector 18 can be split at the job site, but it can be prepared in a pre-installed state. (d) A diagram illustrating the light retardation according to the present invention. As also illustrated in the drawings, the optical cable 11 and u according to the present invention comprise a body portion 12, 12, a portion 15 which is integrally coupled with the suspension portion 13, and body portions 12, 12, and g 129594.doc. 13- 200900773 The 12th portion after the separation of the wire portion 13 is wound into the body portion 12 of H / W16. In the wound state, when the two-wire portion 13 is kept in a winding shape, it is possible to store and transport the bundled structure, and the cylindrical winding portion 17 is not scattered. Further, the main body portions 12 and 12 may be connected to the hanging wire portion 13 to be separated from each other by an external force or the like, and may be fixed by a binding wire. Exhibition side

ί.

The cylindrical winding portion 17 is formed by the diameter D of the allowable-curved diameter of the optical fiber, and the winding diameter IH at this time is preferably suppressed to be less than the transmission loss, and the transfer loss is caused by the roll. In the state in which the portion 17 is pulled apart, it becomes a practical problem. For example, it is preferable to use the following optical fiber core: the f-curve loss at the bending diameter 3〇_ of the wavelength of 1·55 _ is 〇5 side turn. Further, it is preferable to use an optical fiber core having a small allowable bending diameter as a small diameter, and the f-curve loss at a radius of 15 mm at a wavelength of 1.55 μm. d Shaoxing circle below. Further, in the case of the optical fiber of the optical cable satisfying the above conditions, for example, it is preferable to use the following optical fiber: the mode field diameter (MFD: Mode Field Diameter) defined by Petemann-丨 at a wavelength of 33 μm is 9. Below μηι. Further, by setting the mode field diameter of the wavelength of 1.55 pm to 8.0 μη or less, the microbending and bending loss by the side waste can be suppressed, and the allowable bending diameter can be made small. Based on the above, the bending diameters of the optical cables 11 and U are set to be about MM. In this case, by the length of the cylindrical winding portion 17 being about 1 m (about 300 laps), the length of 2 〇 m can be obtained. 129594.doc -14- 200900773 Here, if the distance between the optical cables 11 and π is set, for example, about 45 to 50 m, the main body portions 12 and 12 and the hanging portion are provided. The portion 15 to be connected and integrated is set to about 40 m, and the portion 16 in which the main body portions 12 and 12 are separated from the suspension portion 13 is set to about 1 μm, and this portion is wound into a cylindrical shape as a surplus length. Minute. Further, it is preferable that the optical connectors 18 are mounted on both ends of the main body portions 12 and 12. ', 卩 In the present invention, most of the optical cable is set as the body portion and the hanging wire

The I-line structure of the joint-body is formed by winding the portion with the length necessary for the absorption corresponding to the error of the layout length. In this way, most of them are easily laid out as they are normally introduced into the light. Further, the "winding portion" is set to a minimum required for retention, and the work processing is facilitated. Fig. 3 is a view showing an example in which a cylindrical winding portion π is formed by crimping. The winding portion 17 can hold the m material in a winding shape, but if the winding is simply performed, the winding ring may be handed over and the like, and the crucible is kept in a cylindrical shape. Therefore, as shown in Fig. 3 (A), the main body portions 12, 12' of the hanging wire == without winding are uniformly wound in a specific diameter using a cylindrical shape, a cymbal, and a cymbal. In the case of the above, the heating device 20 is used for heat treatment, and the package is: the entire suspension of the hard portion 12'12' is subjected to a bending process, and the winding circle of the winding U7 is aligned in a cylindrical shape. . This has been curled and held, and the length of the hanging portion 13 is extended... The winding portion 17 of the jingle is stretched along the mechanism 2〇al _ spring. For heating §, various methods of I29594.doc 200900773 such as heater heating and infrared heating can be used. In addition, in the case of the optical cable u as shown in FIG. 1(B) and the steel wire is used for the tensile material of the main body portion 12, 'if the resin is subjected to the degree of crimping processing, the tensile material is It is not curled and it is difficult to maintain shape. For this reason, the optical cable U is preferably formed of a non-metallic tensile material, and an FRp which is a high-strength fiber reinforced with a matrix resin is used. The winding portion 17 is provided in a state in which the winding shape is maintained by the above-described crimping processing, and the wire portion 13 is separated and held in a cylindrical shape so as not to be loosened. As shown in FIG. 2, the winding portion 17 is wound and held on the suspension wire portion 13. Since the winding portion 17 is in a concentrated state, the hanging portion 13 can be easily inserted. Further, the hanging wire portion 13 may be bundled and stored in a form that is not inserted into the winding portion 17 as it is to match the work site. In the case of the optical cable Π, 1 已 which has been set in this state, the portion 15 which has been integrated and integrated is wound and bundled at a specific diameter; and the separated hanging wire portion 13 which is extended from the winding portion 17 Also take the roll and bundle. By performing the packing and storing in this state, it is possible to solve the problem of the work processing such as the extension or bending of the winding portion 17 during the transportation. Fig. 4 is a view showing another embodiment of the separated portion 丨6 of the body portion and the hanging portion of Fig. 2. This embodiment is configured such that an unwound straight portion 21 is provided on the free end side of the cylindrical winding portion 17. For example, in the figure (8), there is a case where the terminal portion such as the optical connector 18 is placed in the house of the house, and is laid out by the wiring tube in the house or the like. In the case of the shape 129594.doc -16- 200900773, if the winding portion 丨7 is fixed in a straight line by fixing both ends, it may be twisted or bent to make wiring difficult. Therefore, as described above, the wiring portion in the house is easily formed by forming the length of the pull-in in the house to the straight portion 21 on the tip end side of the winding portion 17. Fig. 5 is a view showing another embodiment of the separating portion 16 of the body portion and the hanging portion of Fig. 2. In the winding portion 17, the winding direction is usually wound in a spiral shape in one direction; the outer surface of the winding ring is wound across the entire length of the winding.

On the outside, the inner side is located on the inner side across the entire length of the winding. For this reason, if the winding portion is elongated in the longitudinal direction, the main body portions 12 and 12 are twisted, and the transmission loss of the inner optical fiber core wire is increased. Therefore, in the middle of the winding portion 17, the reverse portion 22' in which the winding direction is reversed is provided in each of the portions, whereby the twist can be reduced, and the transmission loss can be reduced. In addition, a plurality of inversion sections are provided. In the case of ', it is set to set an odd number. Further, instead of providing the reversing portion in the winding portion 17, the main portion 12, 12| may be wound and crimped so as not to be in the main body portion 12 after the winding portion 17 is elongated. 12, a method of generating an anti-twist, applying a reverse twist in advance and winding it, and then performing a crimping process. Further, since the optical fiber & cord in the main body portion is formed as a body outside the main body portion, the increase in the transmission loss by the reverse twist can be reduced when the winding portion is elongated and laid. Next, the description will be made based on the layout methods of Figs. 6, 7, and i. As described above, the main body portion 12' continuous to a specific length, the portion 15 of the optical cable 11, 1 、, 12' and the hanging portion 13 according to the present invention for the optical cable according to the present invention is integrally joined, 129594.doc 200900773, The main body portion 2, π and the hanging portion including the specific length: 3: the remaining portion 16. As shown in Fig. KA), in the case of the portion 15 which is connected and formed, the existing ridge line or the structure H line portion 13 is used as a self-supporting light material along the splicing path ' . The end portion of the main body portion 12' 12 of the optical environment is separated from the suspension portion 13, and is connected to the terminal portion in the closed casing by the optical connector 18 or the like.

As shown in the figure, in the other end portion of the main body portion 12, 2 of the portion 15 which is integrally connected, the main portion of the portion 16 in which the hanging portion 13 is separated: 2, 12' is continuous, round. The cylindrical winding portion 17 is elongated along the remaining suspension wire 13. As shown in Fig. 1 (Α), the stage of the winding portion η is terminated by an optical connector 18 or the like, and is terminated by a terminal box or house in a household (4). The winding portion 17 is freely adjustable in accordance with the length of the laying, and is set to the length of the cable laying. However, in the optical cable u and u which are arranged as shown in FIG. 6, the winding portion 17 which has been elongated in the longitudinal direction 1 is only suspended and supported on the hanging wire portion, π early obstruction or heavy machine, etc. It is possible to pull the winding loop and cause sagging. Also: It is possible that birds such as blackbirds will use the stretched loops as a nesting material to pull or play. In addition to this, the winding portion is nested or accumulated due to the adhesion of ice and snow. Fig. 7 is a view showing an example of a method of arranging an optical cable for solving the above-described problems. As shown in Fig. 7 (Α), not only the cylindrical winding portions Γ12, 12 but also the hanging wire portion 13 are separated by a distance of two: 'and the body portion of the winding portion 17 12, 12, tightening and elongating in a manner of winding the outer circumference of the hanging wire portion η. ' Then, the remaining winding portion π is concentrated in a manner of being cylindrical around the terminal end of the line 129594.doc -18-200900773, and is carried out by the holder 23, ', sleepy, and the result is ' Prevent the winding loop from being pulled and causing sagging, or the birds to play and so on. Further, it is preferable to adopt a method in which, as shown in Fig. 7(B), the winding portion 17 is concentrated on the terminal side of the cable, and the winding portion which has been concentrated in a cylindrical shape is formed. The opening faces of both ends of the crucible 7 are blocked by the lid member 24, and are fixed by a fixing member 25 or the like. In this way, the bird can be prevented from entering the cylindrical winding portion 7 or the insect entering the interior to nest. Next, other embodiments of the present invention will be described. Fig. 8(A) is a view showing a cable guiding type using the optical cable according to the present invention, and Figs. 8(B) and 8(c) are views showing a configuration example of the optical cable used in the present invention. The figure shows that 11,11' is the optical cable; 12,12' is the main body; 13 is the hanging line; 14 is the neck, 15 is the integrated part; 16 is the separated part; 17 is the winding part; 8 series optical connector, 3 7 series wound body. As shown in Fig. 8(B), the optical cable used in the present invention is, for example, an optical cable having a rectangular cable cross section similar to that described in Fig. 21(A), or has no hanging portion. 1 3 cable. Here, the detailed description of the optical cable 省略 is omitted, and the cable main body portion 12 is provided with tensile members on both sides of the optical fiber core wire above the stringer, and is surrounded by a body portion having a rectangular cross section (for example, the long side 3) Mm, short side 2 mm)) formed by coating. The fiber-optic core is coated with a standard outer diameter of 1 2 5 μηι of glass fiber to the cladding of the outer diameter of 25 〇. The tensile members are formed of a non-metallic wire which is a steel wire or high strength fiber reinforced with a matrix resin. Further, in the cable body portion 12, 129594.doc -19-200900773, but the groove having the concave shape such as the U-shaped tearing groove may be provided in the shape of the groove. Further, as shown in Fig. 8(C), other light environments (1) used in the present invention are used. For the light of the same circular winding profile as described in Fig. 2 1 (8), the detailed description of the optical gauge is omitted here, but the mirror body portion (4) is arranged with ammonia around the pupil line. High-strength fibers such as fibers are coated with a body having a circular cross section (for example, an outer diameter of 2 degrees)

form. The high-strength fiber has a function as a buffer and a tensile material for the optical fiber core. The hanging portion 13 of the above-mentioned light thinner 11, U is formed by, for example, covering the outer circumference of a steel wire of a degree of 12 or so. The main body portions 12 and 12 are integrally formed with the same resin material as the (4) polyethylene, and the like, and the main resin portions 12 and 12 are integrally formed by extrusion molding. The main body portions 12 and 12 and the suspension portion 13 are connected to each other. The narrow width of the neck 14 is connected and integrated. Therefore, the main body portions 12 and 12' and the suspension wire portion 13 are integrally connected to each other. However, the neck portion 14 can be easily cut by hand if necessary, and can be easily separated. As shown in Fig. 8(A), the optical cable system according to the present invention can be used as an inductive optical cable, which is used to guide an optical fiber to a home raft or the like from a mains cable c mounted on a utility pole. The fibers from the mains cable C are also separated by a closed box K, and the optical cables 1!, U are optically connected to the optical fibers. The optical cables 11 and 1 include a body portion 12 and 12, a portion 15 that is integrated with the suspension portion i 3, and a portion 16 in which the main body portions 12 and 12' are separated from the suspension portion 13. In the main body portions 12, 12 of the separated portion 16, a cylindrical winding portion 17 for the remaining length is formed. In Fig. 8(A), the case where the suspension wire is not inserted 129594.doc -20- 200900773 passes through the winding portion is illustrated. This winding portion 17 is held by the winding body 37 which will be described later. This winding body 37 is a clamp member or the like which will be described later, or is fixed to the suspension wire portion 13 by inserting the suspension wire portion 13 into the winding body 37. The hanging wire portion 13 is attached to the mounting fixture R by the existing trunk cable c or other structure, and is laid along the light-distributing route. Further, in the case where the main louver light is already provided and the spiral hanger 8 has been disposed, the optical gauges n and n may be arranged and used. Also, the light environment U, U, cut

It is preferable to cut the end portion by mounting the optical joint 至少 at least at the end portion of the length, and it is preferable to shorten the arranging operation. Further, the optical connector 18 may be mounted at the job site, but may be prepared in a state of being pre-installed. The winding portion 17 and the winding body 37 for winding support thereof are arranged in a manner close to the cable terminal side of the house side sill in Fig. 8 (4), but may be laid so as to approach the side of the closed box. This is determined in such a manner that the portion 15 in which the main body portions 12, 12' are joined and integrated, and the portion in which the body portion 12, a is separated, 16 is connected to the difference κ side of the closed box, and the light is considered _ The condition of the layout is set, and the beginning of the layout is selected. According to the elongation of the field from the winding portion 17, the direction from the left and right is performed or from both directions, and the (four) portion 17 can be The position of the wound body 37 which is supported by (4) is changed. The winding body 3-7 is stretched at the same time as the wound portion 17 to be wound, and is moved to the house roof along the hanging portion 13 of the money, and the unstrained member will be described later (4) The location. The light that is stretched from the winding portion _ to the relaxed state is left in the hanging wire portion by the binding. Further, 129594.doc -21 - 200900773 is preliminarily attached to the optical connection (4) on the moving direction end side of the winding portion 17, and is connected to a connection converter or the like in the connection box of the house. Further, since the hanging portion 13 is changed in the direction in which the wiring is changed by the passing of the house, the continuous hanging wire is cut in the middle portion and laid in a straight line between the house and the house. Further, the hanging wire portion 13 can also be used as a preparer. Figure 9 is a diagram illustrating other gauge connection patterns using light winding in accordance with the present invention. Fig. 9 (Α) is a diagram showing the type in which the suspension wire is not inserted into the winding portion. This case is an example in which the winding portion of the optical fiber cable is spirally wound around the suspension wire portion 13 while being elongated; the winding body 37 is in the same manner as (4), along the wire portion 13 While the circumference of the suspension wire is swirled and moved, it is held and fixed by a clamp member or the like in an elongated state. In addition, Fig. 9(A) shows that the length is completed and the wire member is fixed. The pattern shown in Fig. 9(B) is an example in which the hanging wire portion 13 is inserted into the wound body 37 to "move the wound body 37 along the hanging wire portion 13". The light (four) of the winding portion 17 is spirally wound around The manner of hanging the wire portion 13 is elongated. This arrangement type sorrows the movement of the winding body 37 by guiding the suspension portion 13 as a guide, whereby the light of the winding portion 17 wound around the outer circumference of the wound body 37 is automatically pulled out and wound around the suspension portion 13. The wound body 37 is held and fixed by fixing both ends to the hanging wire portion. Further, Fig. 9 (Β) shows a state in which it is fixed by a clamp member after the elongation is completed. Fig. 10 is a view showing an example of light winding according to the present invention. The light environment shown in Fig. 4 is an example in which the winding portion 17 is provided as the remaining length in the portion where the hanging portion 13 is not provided. The optical environment shown in Fig. 10 (8) is an example of a portion of the optical cable in which the main body 129594.doc • 22· 200900773 portion 12, 12' is separated from the suspension portion 13, and the winding portion 17 is provided for the remaining length. The main body portion 12, the crucible 2, and the self-contained portion are wound around the outer circumference of the cylindrical winding body 37 in a cylindrical shape = the winding portion 17. The winding portion 17 of the optical cable is as described later. In order to form a winding ring by pre-crimping processing, the winding portion 17 is pulled out from the wound body 37, and a fastening tape or the like is used during storage and transportation so as not to be scattered. Not shown)

maintain. In addition, when the length (4) of the necessary length is stretched in the field layout, etc., the fastening tape or the like is slowly removed, and the winding body 37 is taken out. The wound body 37 is formed into a cylindrical shape by a lightweight alloy such as plastic or aluminum. Further, the both ends of the wound body 37 may be in an open state, but it is preferable to attach the cover member 38 so that insects and birds cannot enter the interior to nest. The winding portion 17 is wound around a diameter equal to or larger than the allowable bending diameter of the optical cable. For this reason, the wound body 37 is preferably formed such that the outer diameter becomes equal to or larger than the allowable bending diameter of the optical cable. Further, in the state in which the winding portion 17 is elongated, it is preferable to suppress the transmission loss which is a practical problem. For example, it is better to use the following fiber core wire: the bending loss at a bending diameter of 30 mm at a wavelength of 1.5 5 μηη is 〇5 dB/1 以下 or less. Further, it is preferable to use an optical fiber core which allows bending, and the bending loss at a bending diameter of 15 mm of a wavelength of 1 · 5 5 μη is 〇 5 dB/10 lap or less. Further, in the case of the optical fiber of the optical cable satisfying the above conditions, for example, it is preferable to use an optical fiber. The mode field diameter (MFD: Mode Field Diameter) defined by petermann_i at a wavelength of 1.3 is 9.0 μm or less. Furthermore, 129594.doc -23- 200900773 By setting the mode field diameter of the wavelength to 8. G_, the allowable bending diameter can be made small by the slight t-curve of the side pressure and the bending loss. Based on the above point, the optical path n, U, and the f-curvature path D are set to a degree of _. In this case, by setting the volume L of the cylindrical winding portion 17 to about 1 m (about 300 laps), it is possible to obtain two jaw lengths. , f \ Here, returning to Figures 8 and 9, the distance between the cables η and u, which are led from the suspended main line G to the house, is set to a degree of ~ "degree. This - situation, The portion 15 in which the main body portions 12 and 12 are connected to the suspension portion 13 is set to about 40 m, and the portion 16 in which the main body portions 12 and 2 are separated is set to about 10 m, and the portion is rolled into a shape. Further, it is preferable to mount the optical head 18 at both ends of the main body portions 12 and 12. The winding portion! 7 can be used to maintain the above-mentioned winding body or tie line according to the present invention. Winding state, but if it is simply wound, the winding ring can be used as a parent and then 'after winding around the winding body 37' until the two are kept solid. It is difficult to keep it neatly round. Therefore, as shown in FIG. U, it is also possible to adopt a method in which the winding portion 17 which is the remaining length of the optical cable is first crimped into a cylindrical shape, and the coiled coil is subjected to crimping. Wound on the wound body 37. The crimping system will have no body that is wound and fatigued, 2, (2), using a cylindrical shape The jig 40 is wound in a specific diameter (above the allowable bending diameter of the light). Then, the heating device 41 performs heat treatment, and the entire portion of the main body portions 12 and 121 is crimped and twisted. 17 I29594.doc -24- 200900773 The winding ring is adjusted in a cylindrical manner to maintain its winding state. The cylindrically wound portion 丨7 which has been crimped is along the axial direction. The coil member can be expanded and contracted as in the case of a coil spring. In the heating member 41a, various methods such as heater heating and infrared heating can be used. Further, the optical cable 11 as shown in Fig. 8(B) and the steel wire are used in the main body portion. In the case of the tensile material of 12, if it is heated to the extent that the resin is subjected to crimping, the tensile material is not curled, and it is difficult to shape.

hold. For this reason, the optical cable 11 is intended to be formed, for example, of a non-metallic tensile material, and an FRP which is a high-strength fiber reinforced with a matrix resin is used. Figs. 12 and 13 are views showing a configuration example in which the scattering of the winding portion Π shown in Figs. 8 (8) and 9 (A) is prevented from being held and fixed by the wound body 37. Fig. 12 (4) is an example in which both end portions of the wound body 37 are held by the clamp member state, 3915 and the bolt member 47, and the suspension is supported by the suspension wire portion (1), and the clamp members 3 9 a, 3 9 b are Metal or hard f plastic. The state of the clamping member is formed, for example, by holding the hanging wire portion 13, the main body portions 12, 12' of the light environment, and the winding body 37 in a row. In addition, the bird line holds the hanging wire portion 13 and the winding body 37 in a row shape.

The parts 12, 12, and the side of the winding body 37 are held by the holding method. In addition, the clamping member 39a is now displayed in the moving direction of the winding body 37 on the left and right sides, and the direction of extension 4 - use is not Ask the example of the shape, but if you use the same shape, you can also use it. At the moment of moving, the clamping member is temporarily taken up or down, and after the elongation is completed, the winding body 37 is moved to move the winding body to the fixed part, and then clamped to the fixed position. When the diaphragm is moved by the clamping member and the winding body and the hanging wire portion are moved as a fixed body, the light is held by the second and the wide. Or, in the lengthening or winding 12, (four) wrap _7 = ^ bolt member 47, and release the movement of the body wrap body has been completed, when the specific line is elongated and tight, the winding portion The smuggling of the stalker L 贞 贞 贞 防止 防止 防止 防止 防止 防止 防止 防止 防止Fig. 12(B) shows the winding body 37 of the "M", "13", which is bundled by the tensioning belt, and is suspended and supported by the hanging wire and the example of the household member 42a, 42b. The binding member 42&s s on the left side is used as a bundle of the hanging wire portion 13, nine-nine body portions 12, 12, and the entangled body 37 as a line. , 尧V 仏 者 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' In addition, if the same shape is used for the binding members on the left and right sides, this is the same as in the case of Fig. 12(A). When the body, the air line is elongated or wound, the body is bound The moving body of the π body 37... 3 scutles or loosens the binding, and the solution: the body portions 12, 12, and the winding body - remain fixed, when specified: the line is elongated and the movement of the wound body has been completed In the case of the N-shape of the Du 49, the binding members 42a and 42b are again bundled to hold the winding portion. The release preventing and winding body 37 is provided. "(A) is the following example: the support body 37, the entangled _ _ 悸 member 45 is inserted into the entanglement of the entangled body 37 - 46a, 46b 盥 bolt structure 47 early. The file is hunted by the clamping member 13. The clamping member 46 ^ 'and" is supported by the suspension wire clamping member 仏, the lining with the example of Fig. 12 (α) (4) the mouth 129594.doc -26- 200900773 with metal or Hard plastic is formed. The clamp member on the left side is formed by, for example, holding the suspension portion 13, the main body portions 12, 12 of the optical cable, and the rod member 45 in a row. Moreover, the right side of the yaw member 46b holds the hanging portion 13 and the rod member 45 in a row; the main body portion 12, 12' of the light plaque is provided on the side of the winding body 37. The binding member 43 can be held. Further, if the same shape is used for the clamping members on the left and right sides, the same as in the case of Fig. 12 (4). When the cord is stretched or the winding body "moves", the body portions 12, 12 are released from the wound body 37 by loosening the biasing members 46a, 46b and the bolt member 47, when the specific state is fixed. When the lengthening of the slow line and the movement of the winding body have been completed, the bolt member 47 is locked again, and the winding portion ί 7 & brother 1 knife 1 is prevented and entangled. Fig. 13(B) is an example in which the rod member 45 for the branch is inserted into the wound body 37, and the stick portion of the dog is protruded from both ends of the wound body 37. The sturdy belt-like fine-grained components 4 4 a, 4 4 b are accompanied by the goods, and the products are held in suspension and supported by the hanging wire portion 13. The binding members 44a, 44b are interchangeable in the evening. The plastic component is formed by the prescription. The binding member 44a on the left side is, for example, a body-shaped part 12, 12, and a winding body 37 which are bundled in a line shape. The binding member 44b on the right side is held in a row by the hanging wire portion 13 and the winding body 37, and the body portions 12, 12' of the optical gauge are attached to the side of the winding body 37, and In addition, the binding member 43 may be held by the binding member 43. Further, if the binding member is formed on the left and right sides, the same as in the case of Fig. 12(A), the elongated or wound body 37 in the ridge line is used. At the time of movement, by bundling or loosening the binding member 44 τ 44b, in addition to the body portions 12, 12, the entanglement entanglement, and the entanglement of the body 37 remain fixed, when the specific cable 129594.doc 27 200900773 When the wire lengthening and the movement of the winding body have been completed, the binding members 44a and 44b are again bundled, and the scattering of the winding portion 17 is prevented from being held and fixed with the winding body 37. Fig. 14 is a view showing Fig. 9(B). The illustration of the configuration in which the winding portion 17 is prevented from being loosened by the winding body 37. This example is an example in which the winding body 37 is inserted into the inside of the winding portion 13 to support the winding body. "moving along the suspension portion 13 to spirally wrap the winding portion 17

The way of hanging the wire U is to lengthen. In this example, the winding portion 37 is guided to move the winding body 37, whereby the light wound around the winding portion 17 around the outer circumference of the winding body is automatically pulled out and wound around the hanging wire portion 13. . The wound body 37 is held fixed by fixing both ends to the hanging wire portion. In the example of Fig. U, the cover structure (4) illustrated in Fig. 1G is attached, and if the elongation is completed, the cover member 38 can be adhered to the suspension wire portion 13 or the like to be fixed. The wire portion 13 is easily inserted into the hole, and the insertion tube may be disposed in advance between the two members 38. Further, in terms of preventing the scattering of the winding portion η, the tying member 43 as shown in Fig. 13 can be used. a bundle of tension-like belts _~(4)(4) A diagram of each of the "types of energy" of the wound body according to the present invention. Fig. 15 shows an example of placing the axial direction of the cylindrical wound body: 31. The slit 31 entering the axial direction passes through the 'elasticity' and the mouth is ... ^ is wrong by the elastic body H' of the wound body 37a, but the straw is pushed away from the shape of the cylinder to maintain the gap 31, and the slit 31 can be opened. The part is inserted into the winding body 3; two: =:, then 129594.doc -28- 200900773 Therefore, in Figure 9 (8), even if the hanging wire and both ends are fixed or laid in the state of the structure, etc. The wound body "a" can be easily inserted into the hanging wire portion 13 or taken out. Further, as shown in Fig. 15(C), # is placed on the inner side of the wound body 37a by the side of the slit 31, so that the outer diameter of the wound body can be made small. The winding portion 17 is attached and detached. The shape of the slit 3 1 is also π $ m ^ main 〜, and is also applicable to the following description of Fig. 9, Fig. 1 (4) and (Β), and the winding bodies 37e, 37d shown in Fig. 12, 37f. Fig. 16(A) shows an example in which the taper 4 32 is provided on the side where the strand of the wound body 37b is elongated. In this case, when the winding portion wound around the wound body m is elongated, the light gauge can be smoothly taken out to make the elongation easy. Further, when the optical gauge is elongated, the edge of the wound body can also reduce the damage caused by the friction of the light (4). Fig. 16(B) shows an example in which the wound body 37b is formed entirely by the tapered portion 32. In this case, the winding and winding body 37b is made thinner toward the elongated side, and the outer diameter of the wound body m is the finest. The winding portion can be wound around a portion other than the tapered portion 32 of the wound body 37b of Fig. 16(A), or can be wound around the tapered portion of the wound body of Figs. 16(A) and 16(B). The shape of the taper portions 32, 32· can also be applied to the shape of the slit provided in the above (4), and the same applies to the pattern of Fig. 17 below. Fig. 17(A) shows an example in which the projections are continuously arranged along the axial direction of the wound body 37ci. The projections 33 are provided at least in the interval between the bundled cable halves 2, π, and at least on the outer surface of the wound body 37c. The optical cable 12, ^^ is housed in the space portion 33 between the protruding portions 33 on the wound body 37c. The way of a in the winding section of the winding portion 'the direction of the winding axis 129594.doc •29- 200900773 :; the movement is restrained 'the winding circle is not handed over, but is protected at a specific interval 17 (B) shows an example in which the protrusions 33 are arranged at a larger interval than the legend in the axial direction of the wound body 37d. In this example, the interval between the portions 33 is set to be 5 to 10 inclusive. By placing a plurality of bars, New One t into the protrusions 33, it is placed in comparison with the 囷Π (4)! The situation of the article is easier to extend the cable. However, compared with the configuration of Fig. 17(A), since the holding force of the winding ring is somewhat lowered, it is also possible to provide the protruding piece 33a at the top of the protruding portion 33. The wood system shows an example in which the wound body 37e is divided into a rectangular cylindrical body 34 in the axial direction. It is formed by a joint portion 35 which is detached from each other by the force and the y, and the end portion of the cylindrical body 34 of the second and seventh sides is connected by any number of the cylindrical bodies 34: a winding body 37e of a length of 1 inch. The joint portion 35 is formed by, for example, forming a male portion and a female portion which are fitted to each other, and is integrated. As described above, the length of the winding body is two or two. The length of the aperture is selected in any length. In the case where the residual amount of the wound portion is small, the cylindrical body 34' having the number of hearts can shorten the wound body %. Fig. 9 is a view showing an example in which the wound body 37f is provided with the groove 36 in the circumferential direction. The circumferential direction is formed at a specific interval such that the groove cross section is formed into a v-shape, and the groove 36 is easily cut. This winding body cuts the long tube 9 :: knife or the like and cuts it to obtain the desired length: :::: concave in the circumferential direction (4) When the length of the winding portion is reduced, two: Further, when the barrier of the I line is opened, the groove 36 is cut in the circumferential direction of the appropriate portion 129594.doc -30-200900773, so that the wound body 37f can be shortened in the same manner as in the case of Fig. 18. In the above, the present invention has been described in detail with reference to specific embodiments. Various changes and modifications can be applied without departing from the spirit and scope of the invention, and this point is unquestionable to the practitioner. The purpose of the present invention is to apply for a Japanese patent application (Japanese Patent Application No. 2007-05(10)), which was filed on March 6, 2007, and the Japanese special invention patent application (Japanese Patent Application) Traces 11 to 36), the contents of which are incorporated herein by reference. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 (A) to (C) are schematic diagrams showing an embodiment of the present invention. Fig. 2 is a view showing an example of an optical cable according to the present invention. Q 3 (A) and (B) illustrate the processing of the round steam can be performed in the present invention. Volume of the winding portion of the middle of the month Fig. 4 is a view showing the configuration of the body portion of the present invention. Fig. 5 is a view showing an embodiment of the separation portion between the main body portion and the suspension wire portion in the present invention. Fig. 6 is a view showing an example of the method of arranging the optical fiber cable according to the present invention. Figs. 7(4), (8) BRIEF DESCRIPTION OF THE DRAWINGS Fig. 8(A) to (C) are diagrams showing an outline of an embodiment of the present invention. Fig. 9(A), (B). BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 (Α), (8) is a diagram illustrating the light environment according to the present invention - an example of a diagram 129594.doc - 31 - 200900773 FIG. 11 is a Shen Ming in the present invention Fig. 12 (A) and (8) are views showing a configuration example in which the winding portion of the present invention is prevented from being scattered and the winding body is supported by the hanging wire portion. Fig. 13 (A), (Β) Fig. 14 is a view showing a configuration example in which the winding portion of the present invention is prevented from being wound and the winding body is supported by the hanging portion. Fig. 14 is a view showing a configuration example in which the hanging portion is inserted into the wound body of the present invention. 15(A) to 15(C) are views showing a configuration example of a wound body in the present invention. Fig. 16(A) and Fig. 16(B) illustrate the present invention. Fig. 1 (A) and (Β) are diagrams showing another configuration example of the wound body in the invention. Fig. 18 (A) and (Β) are views showing the present invention. Fig. 1 (A) and (Β) are diagrams showing another configuration example of the wound body in the present invention. Fig. 20 is a view showing a prior art light-wound joining method. 8121(A), (Β) is a diagram illustrating the configuration of the previous bow|lighting thin. [Main component symbol description] η, 11' cable 12'12' body portion 13 hanging wire portion 14 neck 129594.doc 32 - 36 37 , 37a to 37f 38 39a, 39b, 46a, 46b 42a, 42b, 43, 44a, 44b 45 47 200900773 15 16 17 18 19 ' 20 - 20a 21 C 22 23 24 25 31 32, 32, 33 34 35 Part of the winding portion after the integral part is separated, the optical joint, the winding fixture, the heating device, the heating mechanism, the linear portion, the reversing portion, the holding member, the fixing member, the slit, the taper portion, the protruding portion, the cylindrical body, the circumferential portion, the groove, the winding body cover Member clamping member binding member rod member bolt member 129594.doc -33 -

Claims (1)

200900773 X. Patent application scope: 1. A fiber optic cable, comprising: a body portion, which is covered with an optical fiber core wire, and a hanging wire portion, which is integrally connected with the body portion by an easily separated neck; Separating the main body portion and the target line portion on one end side of the cable, and the main body portion having the cutter portion has a winding portion formed by a plurality of winding rings wound with a diameter larger than an allowable bending diameter of the optical fiber The winding is held on the aforementioned line. 2. The optical cable of claim 1, wherein the cylindrical winding portion is formed by crimping. 3. The optical cable of claim 2, wherein the free end side of the coiled portion of the aforementioned crimping process comprises a straight portion that is not crimped. 4. The light gauge of claim 2, wherein the aforementioned crimped roll of the eight-dimensional volume, the free-chain is at least one 4-position reverse winding direction in the middle position. 5. In the case of the light of the item 2, the winding portion is not twisted on the winding in order to stretch the long ridge, but is twisted in the opposite direction in advance. 6. If the light of the item 1 is thin, the optical connector is installed at the end of the at least one side of the line. 7. A method for arranging optical cables, which is characterized by any one of the spleen and spleen methods. ',. Use the twilight 4 in claims 1 to 6 to keep the winding in Yubugong; 'monthly hanging line Before il: 揉Μ 丨 丨 珂 珂 珂 珂 珂 珂 珂 珂 』 』 』 』 』 』 』 』 』 』 』 』 η η η 129594.doc 200900773 8. The method for laying the optical cable of claim 7, wherein the winding portion of one part of the inner side of the cable of the winding portion is such that the body portion of the rigid body is attached to the hanging wire portion The outer circumference is wound in a manner of being elongated' and the remaining winding portions are concentrated and converged on the cable terminal side of the aforementioned winding portion. 9. The method of laying a fiber optic cable according to claim 8, wherein the remaining winding ring is bundled into a cylindrical shape, and the opening of the cylinder at both ends is blocked. r 10. An optical display comprising: a body portion of an outer coated optical fiber core, and a portion of the optical cable is comprised of a winding portion of a plurality of winding coils wound with a diameter greater than an allowable bending diameter of the optical fiber Formed and wound around the wound body. 11. The fiber optic cable of claim 10, wherein the outer diameter of the winding body is the diameter of the allowable bending diameter of the optical fiber. 12) The optical cable of claim 1, wherein the suspension wire is inserted in the axial direction of the winding body. 13. The optical cable of claim 12, wherein the loading and unloading slot is provided with a side gap in the winding body that is detachable from the hanging wire. At a specific interval, the vehicle is 14. The cable of the claim 1 has a plurality of protrusions on the outside of the aforementioned winding body. 15. The fiber optic cable of claim 14, wherein 129594.doc 200900773, the tenth, the first month of the interval of the cable is the aforementioned line of the cable 16. If the request hall P is straighter than 5 to 1 times. The optical cable of any one of the items 1 to 15, wherein the elongated side of the wound portion of the front entangled body is attached with a taper of 17 4, ^ ^ + . The optical cable of any one of the above-mentioned items of the present invention, wherein in the axial direction of the winding body, a %-shaped groove which can be easily cut is provided at a specific interval of the bamboo raft. 1. The optical winding of any one of clauses 1 to 12, wherein the winding system is formed by a plurality of shorter cylinders that are separable in the axial direction. 129594.doc