TWI647500B - Optical fiber unit, optical fiber cable, and manufacturing method of optical fiber unit - Google Patents
Optical fiber unit, optical fiber cable, and manufacturing method of optical fiber unit Download PDFInfo
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Abstract
在複數條光纖芯線的外周，設置2條束材。束材是一面使捲繞方向正反逆轉一面往回扭，捲繞於複數個光纖芯線的外周。亦即，束材並非螺旋捲繞於複數個光纖芯線的外周。另外，束材是在兩者之交叉部的接合部進行接合。接合部是設在光纖單元之中心線上。又，束材是配置在由中心線所區分之約180°的各個範圍。Two bundles are disposed on the outer circumference of the plurality of optical fiber cores. The bundle material is wound around the winding direction in the forward and reverse directions, and is wound around the outer circumference of the plurality of optical fiber cores. That is, the bundle is not spirally wound around the outer circumference of the plurality of optical fiber cores. Further, the bundle material is joined at the joint portion at the intersection of the two. The joint is provided on the center line of the fiber unit. Further, the bundle material is disposed in each range of about 180° which is distinguished by the center line.
Description
發明領域 本發明是有關於一種容易進行分岐作業的光纖單元等。FIELD OF THE INVENTION The present invention relates to an optical fiber unit or the like that is easy to perform a branching operation.
發明背景 近年來，隨著網際網路的普及，把光纖直接接入一般家庭而實現高速通訊服務的FTTH(Fiber To The Home：光纖到府)規模正急速擴大中。一般而言，使用於FTTH的光纖纜線中，收容有可對應大容量之資料通訊的光纖之集合體。BACKGROUND OF THE INVENTION In recent years, with the spread of the Internet, the scale of FTTH (Fiber To The Home), which directly connects optical fibers to a general household and realizes high-speed communication services, is rapidly expanding. In general, an optical fiber cable used in FTTH accommodates an assembly of optical fibers that can communicate with a large amount of data.
在此，光纖之集合體是例如集合複數條光纖帶芯線等而形成。又，把藉由束材將此光纖集合體束起者，總稱為光纖單元。Here, the aggregate of the optical fibers is formed by, for example, collecting a plurality of optical fiber ribbons or the like. Further, the bundle of the optical fibers by the bundle is collectively referred to as an optical fiber unit.
如此之光纖單元，例如：把複數條光纖芯線，將作為束材之2條繩帶彼此逆向地螺旋捲繞而構成(專利文獻1)。In the optical fiber unit, for example, a plurality of optical fiber core wires are spirally wound in a reverse direction with each other as a bundle of two bundles (Patent Document 1).
又，已提出一種光纖單元，是束起光纖之集合體，把複數個束材朝長方向捲成螺旋狀，在2條交叉的交叉點，將束材接著住(專利文獻2)。 先行技術文獻 專利文獻Further, an optical fiber unit is proposed in which an optical fiber unit is bundled, and a plurality of bundle materials are wound into a spiral shape in the longitudinal direction, and the bundle material is held at the intersection of the two intersections (Patent Document 2). Advanced technical literature
[專利文獻1]日本發明公開公報特開平9－26534號 [專利文獻2]日本發明公開公報特開2011－169939號[Patent Document 1] Japanese Laid-Open Patent Publication No. Hei 9-26534 [Patent Document 2] Japanese Laid-Open Patent Publication No. 2011-169939
發明概要 發明欲解決之課題 但是，若如專利文獻般，使用2條束材，彼此逆向地捲繞而接合交叉部，則在分岐作業時，會難以拆開接合部，即使切斷了交叉部之接合部，也必須將各個束材朝反方向繞開，在除去束材時會有花費時間的問題。SUMMARY OF THE INVENTION PROBLEMS TO BE SOLVED BY THE INVENTION However, if two bundles are used and are wound in opposite directions and joined to each other as in the case of the patent document, it is difficult to disassemble the joint portion during the branching operation, even if the intersection portion is cut. In the joint portion, it is also necessary to circumvent the respective bundles in the reverse direction, which may cause a problem in removing the bundle material.
本發明是有鑑於如此之問題而做成的發明，目的在於提供一種可易於進行分岐作業的光纖單元等。 用以解決課題之手段The present invention has been made in view of such problems, and it is an object of the invention to provide an optical fiber unit or the like which can be easily branched. Means to solve the problem
為了達到前述目的，第1發明是一種光纖單元，其特徵在於：具備有複數個光纖芯線、及配置在複數個前述光纖芯線之外周的複數條束材，又，前述束材皆未螺旋捲繞於前述光纖芯線之外周，是將至少一條前述束材，在複數個前述光纖芯線之外周，一面使捲繞方向正反逆轉一面往回扭，並在前述束材們的交叉部，將前述束材們接合。In order to achieve the above object, a first aspect of the invention provides an optical fiber unit including a plurality of optical fiber cores and a plurality of bundles disposed on a periphery of a plurality of the optical fiber cores, wherein the bundles are not spirally wound. On the outer circumference of the optical fiber core, at least one of the bundles is twisted back and forth on the outer circumference of the plurality of the optical fiber cores, and the bundle is twisted at the intersection of the bundles. The materials are joined.
前述束材之接合部的長度宜為5mm以上、20mm以下。The length of the joint portion of the bundle material is preferably 5 mm or more and 20 mm or less.
前述束材之接合部的剝離強度宜為0.01N以上、2.0N以下。The peeling strength of the joint portion of the bundle material is preferably 0.01 N or more and 2.0 N or less.
前述束材也可為樹脂帶，而前述束材之接合部可藉由熱熔合而接合。The above-mentioned bundling material may also be a resin tape, and the joint portion of the bundling material may be joined by heat fusion.
前述光纖芯線也可為光纖帶芯線。The aforementioned optical fiber core wire may also be an optical fiber ribbon.
根據第1發明，複數個束材都不會進行螺旋捲繞，且其中，至少有一條會一面使捲繞方向正反逆轉一面往回扭，並在束材間的交叉部被接合。因此，藉著把被往回扭之束材拉開，可以輕易地拆開接合部的接合。又，若拆開接合部，則不用將束材捲回，而可取出內部的光纖芯線。因此，分岐作業性良好。According to the first aspect of the invention, the plurality of bundle members are not spirally wound, and at least one of them is twisted back while reversing the winding direction, and is joined at the intersection between the bundle members. Therefore, the joint of the joint can be easily disassembled by pulling the bundle of the twisted back. Moreover, if the joint portion is removed, the inner fiber core wire can be taken out without winding the bundle material back. Therefore, the tillering workability is good.
特別是，若束材之接合部的長度為5mm以上，則在製造中等之時，接合部不會鬆脫，而若束材之接合部的長度為20mm以下，則可抑制因為作為接合部之直線部太長而讓光纖芯線跑出來的事情發生。In particular, when the length of the joint portion of the bundle material is 5 mm or more, the joint portion does not come loose during the production, and if the length of the joint portion of the bundle material is 20 mm or less, it can be suppressed as the joint portion. The straight line is too long for the fiber core to run out.
又，若束材之接合部的剝離強度為0.01N以上、2.0N以下，則在製造中等之時，接合部不會鬆脫，又，在分岐作業時可輕易地將接合部剝離。Further, when the peeling strength of the joined portion of the bundle material is 0.01 N or more and 2.0 N or less, the joint portion is not loosened during the production, and the joint portion can be easily peeled off during the branching operation.
又，若束材為樹脂帶，且將束材之接合部藉由熱熔合來進行接合，則可輕易地製造光纖單元。Further, when the bundle material is a resin tape and the joint portion of the bundle material is joined by heat fusion, the optical fiber unit can be easily manufactured.
又，若光纖芯線為由複數個光纖線所形成的光纖帶芯線，則可輕易地製造束起了複數個光纖帶芯線的光纖單元。Further, if the optical fiber core is an optical fiber ribbon formed of a plurality of optical fiber wires, the optical fiber unit in which a plurality of optical fiber ribbon wires are bundled can be easily manufactured.
第2發明是一種光纖纜線，特徵在於具備有：第1發明之複數個光纖單元、抗張體、及設於前述光纖單元之外周的外被。According to a second aspect of the invention, there is provided an optical fiber cable comprising: the plurality of optical fiber units of the first invention; the tensile body; and the outer periphery provided on the outer periphery of the optical fiber unit.
根據第2發明，可得到一種分岐作業性優異的光纖纜線。According to the second aspect of the invention, an optical fiber cable excellent in branching workability can be obtained.
第3發明是一種光纖單元之製造方法，其特徵在於：將複數個光纖芯線束起，於前述光纖芯線之外周，一面連續地供給複數條束材，一面重複如下之步驟：在前述光纖芯線之一側將前述束材們在接合部進行接合，且在與前述光纖芯線之長方向垂直的方向上，讓前述光纖芯線抵接於前述一側之接合部地使前述束材與前述光纖芯線相對地移動，並使前述束材往前述光纖芯線之另一側移動；以及在前述光纖芯線之另一側將前述束材們在接合部進行接合，且在與前述光纖芯線之長方向垂直的方向上，讓前述光纖芯線抵接於前述另一側之接合部地使前述束材與前述光纖芯線相對地移動，並使前述束材往前述光纖芯線之前述一側移動。According to a third aspect of the invention, in a method of manufacturing an optical fiber unit, a plurality of optical fiber cores are bundled, and a plurality of bundles are continuously supplied to the outer periphery of the optical fiber core, and the following steps are repeated: in the optical fiber core One side of the bundles is joined to the joint portion, and the bundle of the optical fibers is abutted against the joint portion of the one side in a direction perpendicular to the longitudinal direction of the optical fiber core, so that the bundle is opposed to the core of the optical fiber. Moving the ground and moving the bundle to the other side of the optical fiber core; and joining the bundles at the joint portion on the other side of the optical fiber core, and in a direction perpendicular to the longitudinal direction of the optical fiber core The optical fiber core wire is brought into contact with the joint portion on the other side to move the beam material relative to the optical fiber core wire, and the beam material is moved to the side of the optical fiber core wire.
根據第3發明，可輕易地得到一種分岐作業性優異的光纖單元。 發明效果According to the third aspect of the invention, an optical fiber unit excellent in branching workability can be easily obtained. Effect of the invention
根據本發明，可提供一種容易進行分岐作業的光纖單元等。According to the present invention, it is possible to provide an optical fiber unit or the like which is easy to perform a branching operation.
較佳實施例之詳細說明 以下，一面參照圖示，一面說明本發明之實施形態。圖1A是顯示光纖單元1的立體圖，圖1B是與光纖單元1之長方向垂直的截面圖。光纖單元1是由光纖芯線3、束材5a、5b等構成。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1A is a perspective view showing the optical fiber unit 1, and FIG. 1B is a cross-sectional view perpendicular to the longitudinal direction of the optical fiber unit 1. The optical fiber unit 1 is composed of an optical fiber core 3, bundles 5a, 5b, and the like.
另外，光纖芯線3之條數並不限於圖示之例。在複數條光纖芯線3的外周，設有2條束材5a、5b。另外，束材之條數只要為複數條即可，不限條數，但以2條為佳。束材5a、5b例如為樹脂帶。Further, the number of the optical fiber core wires 3 is not limited to the illustrated example. On the outer circumference of the plurality of optical fiber cores 3, two bundles 5a, 5b are provided. In addition, the number of bundles is only a plurality of strips, and is not limited to a number, but two are preferred. The bundle 5a, 5b is, for example, a resin tape.
束材5a、5b是一面使捲繞方向正反逆轉一面往回扭，並捲繞於複數個光纖芯線3的外周。亦即，束材5a、5b並未螺旋捲繞於複數個光纖芯線3的外周。The bundle members 5a and 5b are twisted back while rotating the winding direction forward and backward, and are wound around the outer circumference of the plurality of optical fiber cores 3. That is, the bundle members 5a, 5b are not spirally wound around the outer circumference of the plurality of optical fiber cores 3.
更具體而言，如圖1B所示，束材5a是在光纖單元1之圓周方向的範圍B，一面使捲繞方向正反逆轉一面設置於光纖芯線3的外周。同樣地，束材5b是在光纖單元1之圓周方向的範圍A，一面使捲繞方向正反逆轉一面設置於光纖芯線3的外周。More specifically, as shown in FIG. 1B, the bundle 5a is provided on the outer circumference of the optical fiber core 3 while the winding direction is reversed in the range B in the circumferential direction of the optical fiber unit 1. Similarly, the bundle 5b is provided on the outer circumference of the optical fiber core 3 while the winding direction is reversed in the range A in the circumferential direction of the optical fiber unit 1.
另外，束材5a、5b是在兩者之交叉部的接合部7進行接合。在圖示之例中，兩側之接合部7是設在光纖單元1之中心線C上。又，束材5a、5b是配置於由中心線C所區分之約180°(束材5a、5b有一部分重疊)的各個範圍A、B。另外，束材5a、5b的捲繞範圍並不限定為180°。Further, the bundle members 5a and 5b are joined at the joint portion 7 at the intersection of the two. In the illustrated example, the joint portions 7 on both sides are provided on the center line C of the optical fiber unit 1. Further, the bundle members 5a and 5b are disposed in the respective ranges A and B which are separated by the center line C by about 180 (the bundle members 5a and 5b partially overlap). Further, the winding range of the bundling members 5a, 5b is not limited to 180 degrees.
藉由如此，藉著把束材5a、5b朝反方向拉，可輕易地將接合部7拆開。又，當接合部7鬆脫，則束材5a、5b會分離，而可輕易地取出內部的光纖芯線3。Thus, the joint portion 7 can be easily detached by pulling the bundle members 5a, 5b in the reverse direction. Further, when the joint portion 7 is loosened, the bundle members 5a, 5b are separated, and the inner optical fiber core 3 can be easily taken out.
例如，在圖1B中，若拆掉右側的接合部7，則束材5a、5b僅在左側的接合部7接合，而可使束材5a、5b的右半部完全呈開口狀態。因此，不像將束材5a、5b進行螺旋捲繞的情況一樣，須將束材5a、5b捲回。For example, in Fig. 1B, when the joint portion 7 on the right side is removed, the bundle members 5a, 5b are joined only at the joint portion 7 on the left side, and the right half of the bundle members 5a, 5b can be completely opened. Therefore, unlike the case where the bundle members 5a, 5b are spirally wound, the bundle members 5a, 5b must be wound back.
另外，接合部7對於光纖單元1之長方向的長度，宜為5mm以上、20mm。當接合部7的長度小於5mm，則在製造中等時，接合部7會有鬆脫之虞。又，若接合部7的長度超過20mm，則由於束材5a、5b與光纖芯線3同方向地進行接合的直線範圍會變長，所以光纖芯線3容易從光纖單元1跑出來，會變得較不容易處理。Further, the length of the joint portion 7 in the longitudinal direction of the optical fiber unit 1 is preferably 5 mm or more and 20 mm. When the length of the joint portion 7 is less than 5 mm, the joint portion 7 may be loosened during the manufacturing process. In addition, when the length of the joint portion 7 exceeds 20 mm, the straight line range in which the bundle members 5a and 5b are joined in the same direction as the optical fiber core 3 is long, so that the optical fiber core 3 easily escapes from the optical fiber unit 1 and becomes more complicated. Not easy to handle.
又，接合部7的最大剝離強度，宜為0.01N以上、2.0N以下。另外，剝離強度是使用了JIS K 6854之剝離試驗的強度值。當最大剝離強度小於0.01N，則在製造中，接合部7可能會有鬆脫之虞。又，若最大剝離強度超過2.0N，則接合力會太強，在分岐作業等時，會難以拆開束材5a、5b之接合部7，可能會有傷到光纖芯線3之虞。 Further, the maximum peeling strength of the joint portion 7 is preferably 0.01 N or more and 2.0 N or less. Further, the peel strength is the strength value of the peel test using JIS K 6854. When the maximum peel strength is less than 0.01 N, the joint portion 7 may be loosened during manufacture. Further, when the maximum peeling strength exceeds 2.0 N, the joining force is too strong, and it is difficult to disassemble the joint portion 7 of the bundle members 5a and 5b during the branching operation or the like, and the fiber core wire 3 may be damaged.
接著，說明光纖單元1之製造方法。首先，把由光纖芯線供給部所供給之複數個光纖芯線3束起，形成光纖芯線3之束。然後，將2條束材5a、5b，供給至光纖芯線束的外周。 Next, a method of manufacturing the optical fiber unit 1 will be described. First, a plurality of optical fiber cores 3 supplied from an optical fiber core supply unit are bundled to form a bundle of optical fiber cores 3. Then, the two bundles 5a and 5b are supplied to the outer circumference of the optical fiber bundle.
一面連續地供給2條束材5a、5b，並且，首先，如圖2A所示，將束材5a、5b配置於光纖芯線3之一側(在圖中為下方)。又，將束材5a、5b之一部份，在接合部7進行接合。例如，用已加熱之模具將束材5a、5b夾入，藉此可輕易地將兩者熱熔合。另外，束材5a、5b也可用接著劑等其他手段來進行接合。 The two bundles 5a and 5b are continuously supplied, and first, as shown in FIG. 2A, the bundles 5a and 5b are disposed on one side of the optical fiber core 3 (downward in the drawing). Further, one of the bundle members 5a and 5b is joined to the joint portion 7. For example, the bundles 5a, 5b are sandwiched by a heated mold, whereby the two can be easily thermally fused. Further, the bundle members 5a and 5b may be joined by other means such as an adhesive.
接著，在與光纖芯線3之長方向垂直的方向(在圖中為上下方向)上，使束材5a、5b與光纖芯線3相對地移動(圖中為箭號D、E)，以使光纖芯線3會與一側之接合部7抵接，並使束材5a、5b往光纖芯線3之另一側(在圖為上方)移動。另外，束材5a、5b與光纖芯線3之相對的移動，可以僅使某一方移動，也可以使兩者移動。 Next, in the direction perpendicular to the longitudinal direction of the optical fiber core 3 (up and down direction in the drawing), the beam members 5a, 5b are moved relative to the optical fiber core 3 (arrows D, E in the figure) to make the optical fiber The core wire 3 abuts against the joint portion 7 on one side, and moves the bundle members 5a, 5b toward the other side (above in the drawing) of the optical fiber core 3. Further, the relative movement of the bundle members 5a and 5b and the optical fiber core 3 may be moved by only one of them, or both.
接著，如圖2B所示，在光纖芯線3之另一側(在圖中為上方)，使束材5a、5b彼此接近(在圖中為箭號F)。 Next, as shown in Fig. 2B, on the other side (upward in the figure) of the optical fiber core 3, the bundles 5a, 5b are brought close to each other (arrow F in the figure).
此外，更如圖3A所示，將束材5a、5b接合。 在束材5a、5b們之接合後，將束材5a、5b朝反方向往回扭(朝與圖2B之接近方向F為反方向地分開)。然後，使束材5a、5b與光纖芯線3相對地移動(圖中為箭號G、H)，以使光纖芯線3會與剛剛已接合好的另一側之接合部7抵接，並使束材5a、5b往光纖芯線3之一側(在圖中為下方)移動。 Further, as shown in Fig. 3A, the bundle members 5a, 5b are joined. After the joining of the bundle members 5a, 5b, the bundle members 5a, 5b are twisted back in the opposite direction (separated in the opposite direction to the direction F of Fig. 2B). Then, the bundle members 5a, 5b are moved relative to the optical fiber core 3 (arrows G, H in the drawing) so that the optical fiber core 3 abuts against the joint portion 7 on the other side just joined, and The bundles 5a, 5b are moved toward one side (lower in the figure) of the optical fiber core 3.
接著，如圖3B所示，在光纖芯線3之一側(在圖中為下方)，使束材5a、5b彼此接近(圖中為箭號I)。 Next, as shown in Fig. 3B, on one side (lower in the figure) of the optical fiber core 3, the bundle members 5a, 5b are brought close to each other (arrow I in the figure).
此外，更如圖3C所示，將束材5a、5b接合後，將束材5a、5b朝反方向往回扭(朝與圖3B之接近方向I為反方向地分開)。然後，使束材5a、5b與光纖芯線3相對地移動(圖中為箭號J、K)，以使光纖芯線3會與剛剛已接合之一側的接合部7抵接，並使束材5a、5b往光纖芯線3之另一側(在圖中為上方)移動。 Further, as shown in Fig. 3C, after the bundle members 5a, 5b are joined, the bundle members 5a, 5b are twisted in the reverse direction (separated in the direction opposite to the direction I of Fig. 3B). Then, the bundle members 5a, 5b are moved relative to the optical fiber core 3 (arrows J, K in the figure) so that the optical fiber core 3 abuts on the joint portion 7 on the side just joined, and the bundle is made 5a, 5b move toward the other side (upward in the figure) of the optical fiber core 3.
藉著重複以上，可以不將束材5a、5b螺旋捲繞於光纖芯線3的外周(不朝同一方向連續地捲繞複數圈)，而製造光纖單元1。 By repeating the above, the optical fiber unit 1 can be manufactured without spirally winding the bundle members 5a and 5b around the outer circumference of the optical fiber core 3 (not continuously winding a plurality of turns in the same direction).
另外，藉著改變夾入束材5a、5b的模具的大小，可以調整接合部7的長度。又，藉著改變束材5a、5b的供給速度、以及束材5a、5b與光纖芯線3間之相對移動時機，可以調整接合部7的間距。 Further, the length of the joint portion 7 can be adjusted by changing the size of the mold sandwiched between the bundle members 5a, 5b. Further, the pitch of the joint portion 7 can be adjusted by changing the supply speed of the bundle members 5a, 5b and the relative movement timing between the bundle members 5a, 5b and the optical fiber core 3.
另外，在上述的說明中，是顯示了使束材5a、5b兩者正反逆轉並往回扭的方法，但本發明並不限於此。在本發明中，在複數條束材之中，只要至少使1條正反逆轉並往回扭即可。 Further, in the above description, the method of causing both of the bundle members 5a and 5b to reversely reverse and twist back is shown, but the present invention is not limited thereto. In the present invention, it is sufficient that at least one of the plurality of bundles is reversed and twisted back.
圖4A是顯示光纖單元1a的圖。光纖單元1a是與光纖單元1幾乎同樣的構成，但只有使束材5a正反逆轉並往回扭，束材5b是朝光纖單元1a之長方向而配置成大致直線狀。Fig. 4A is a view showing the optical fiber unit 1a. The optical fiber unit 1a has almost the same configuration as the optical fiber unit 1. However, only the bundle 5a is reversed and reversed, and the bundle 5b is disposed substantially linearly in the longitudinal direction of the optical fiber unit 1a.
如圖4B所示，束材5a在光纖單元1之圓周方向的範圍L，一面使捲繞方向正反逆轉一面進行設置，而束材5b在圓周方向的位置則幾乎沒有變化。亦即，束材5a是在光纖芯線3的外周約360°的範圍，一面正反逆轉一面往回扭。As shown in Fig. 4B, in the range L of the bundle member 5a in the circumferential direction of the optical fiber unit 1, the winding direction is reversed while the winding direction is reversed, and the position of the bundle member 5b in the circumferential direction hardly changes. That is, the bundle 5a is in the range of about 360° on the outer circumference of the optical fiber core 3, and is turned back and forth while being reversed.
另外，在此情況下，也可藉著重複進行束材5a、5b之接合、以及束材5a、5b與光纖芯線3間之相對位置的移動，來得到光纖單元1a。Further, in this case, the optical fiber unit 1a can be obtained by repeating the joining of the bundle members 5a and 5b and the movement of the relative positions between the bundle members 5a and 5b and the optical fiber core 3.
又，在上述之實施形態中，是顯示了以束材5a、5b束起複數個單芯之光纖芯線3之例，但也可適用於複數個光纖帶芯線。Further, in the above-described embodiment, an example is shown in which a plurality of single-core optical fiber cores 3 are bundled by the bundle members 5a and 5b. However, the present invention is also applicable to a plurality of optical fiber ribbons.
圖5A是顯示光纖單元1b的立體圖，圖5B是與光纖單元1b之長方向垂直的截面圖。光纖單元1b是與光纖單元1幾乎相同的構成，但是使用光纖帶芯線3a，來代替單芯之光纖芯線3。另外，在圖示之例中，是顯示光纖帶芯線3a為4芯之例，但芯數並不限於圖示之例。又，顯示了由3條光纖帶芯線3a來構成光纖單元1b之例，但光纖帶芯線3a之條數並不限於圖示之例。Fig. 5A is a perspective view showing the optical fiber unit 1b, and Fig. 5B is a cross-sectional view perpendicular to the longitudinal direction of the optical fiber unit 1b. The optical fiber unit 1b has almost the same configuration as the optical fiber unit 1, but an optical fiber ribbon 3a is used instead of the single-core optical fiber core 3. Further, in the illustrated example, the example in which the optical fiber ribbon 3a is four cores is shown, but the number of cores is not limited to the illustrated example. Further, an example in which the optical fiber unit 1b is constituted by the three optical fiber ribbons 3a is shown, but the number of the optical fiber ribbons 3a is not limited to the illustrated example.
又，對於光纖單元1b，也可如光纖單元1a般，束材5a是在光纖單元1b之圓周方向的大致全周，一面使捲繞方向正反逆轉一面進行設置，而束材5b在圓周方向的位置則是幾乎沒有變化。Further, in the optical fiber unit 1b, as in the optical fiber unit 1a, the bundle 5a may be disposed substantially in the circumferential direction of the optical fiber unit 1b, and the winding direction may be reversed while the winding direction is reversed, and the bundle 5b is circumferentially The location is almost unchanged.
接著，說明使用了光纖單元1的光纖纜線。另外，在以下的說明中，是顯示了使用光纖單元1之例，但也可適用光纖單元1a、1b。圖6A是顯示光纖纜線10的截面圖。將以前述之方法所得到的複數個光纖單元1撚合，在該等之外周設置聚丙烯紗線等之緩衝體11，形成纜線芯。Next, an optical fiber cable using the optical fiber unit 1 will be described. Further, in the following description, an example in which the optical fiber unit 1 is used is shown, but the optical fiber units 1a and 1b may be applied. FIG. 6A is a cross-sectional view showing the optical fiber cable 10. The plurality of optical fiber units 1 obtained by the above-described method are twisted, and a buffer body 11 such as a polypropylene yarn is placed on the outer circumference to form a cable core.
此外，更在所得到的纜線芯的外周，配置由鋼線等所形成的抗張體15及剝離繩17，此外，在由光纖單元1所形成的纜線芯、及抗張體15等的外周，押出被覆有由聚乙烯等所形成的外被13。亦即，在外被13的內部，於夾著纜線芯而相對向的位置，設有一對抗張體15，而在與抗張體15之對向方向大致直交的方向，則夾著纜線芯而相對向地設有剝離繩17。Further, the tensile body 15 and the peeling cord 17 formed of a steel wire or the like are disposed on the outer circumference of the obtained cable core, and the cable core formed by the optical fiber unit 1 and the tensile body 15 and the like are disposed. On the outer circumference, the outer cover 13 formed of polyethylene or the like is covered. That is, in the inside of the outer quilt 13, a position against the tension member 15 is provided at a position opposed to the cable core, and the cable core is sandwiched in a direction substantially orthogonal to the direction opposite to the tensile body 15. The peeling cord 17 is provided oppositely.
又，在本發明中，除了圖6A所示之光纖纜線10之外，也可為例如圖6B所示之使用了槽的光纖纜線10a。Further, in the present invention, in addition to the optical fiber cable 10 shown in Fig. 6A, for example, the optical fiber cable 10a using the groove shown in Fig. 6B may be used.
光纖纜線10a是在形成於槽19外周的複數個槽溝21分別配置光纖單元1。另外，抗張體15是設在槽19的大致中心，在槽19的外周因應需要而施行了按壓捲繞之後，形成外被13。在此情況下，也可得到與光纖纜線10同樣的效果。In the optical fiber cable 10a, the optical fiber unit 1 is disposed in each of the plurality of grooves 21 formed on the outer circumference of the groove 19. Further, the tensile body 15 is provided at substantially the center of the groove 19, and after the outer circumference of the groove 19 is pressed and wound as needed, the outer portion 13 is formed. In this case as well, the same effect as the optical fiber cable 10 can be obtained.
如以上所說明，根據本實施形態，由於束材5a、5b並非分別朝同一方向進行螺旋捲繞，而是在預定的圓周方向範圍使捲繞方向正反逆轉地設在光纖芯線3、或是光纖帶芯線3a的外周，因此接合部7會容易斷開，並且，也可不捲回束材5a、5b而可輕易地取出內部的光纖芯線3。因此，光纖芯線3、或光纖帶芯線3a的分岐作業會較為容易。 As described above, according to the present embodiment, since the bundle members 5a and 5b are not spirally wound in the same direction, the winding direction is reversely reversed in the predetermined circumferential direction direction on the optical fiber core 3, or Since the outer periphery of the optical fiber ribbon 3a is provided, the joint portion 7 can be easily broken, and the inner optical fiber core 3 can be easily taken out without retracting the bundle members 5a and 5b. Therefore, the branching operation of the optical fiber core 3 or the optical fiber ribbon 3a is relatively easy.
又，由於束材5a、5b之接合部7的長度為5mm以上、20mm以下，所以在製造中等之時，接合部7不會鬆脫，並可抑制因為作為接合部7之直線部太長而讓光纖芯線跑出來的事情發生。 In addition, since the length of the joint portion 7 of the bundling members 5a and 5b is 5 mm or more and 20 mm or less, the joint portion 7 does not come loose during the manufacturing process, and the straight portion as the joint portion 7 can be suppressed from being too long. What happens to the fiber optic core runs out.
又，由於束材之接合部的剝離強度為0.01N以上、2.0N以下，所以在製造中等之時，接合部7不會鬆脫，又，在分岐作業時可輕易地將接合部7剝離。 Moreover, since the peeling strength of the joint portion of the bundle material is 0.01 N or more and 2.0 N or less, the joint portion 7 is not loosened during the production, and the joint portion 7 can be easily peeled off during the branching operation.
又，由於束材5a、5b為樹脂帶，且將束材5a、5b之接合部7藉由加熱熔合來進行接合，所以可輕易地製造光纖單元1、1a、1b。 Further, since the bundle members 5a and 5b are resin tapes and the joint portions 7 of the bundle members 5a and 5b are joined by heat fusion, the optical fiber units 1, 1a and 1b can be easily manufactured.
以上，已一面參照附圖，一面說明了本發明之實施形態，但本發明之技術範圍，並不受前述實施形態左右。若為熟悉此項技藝者，當可在申請專利範圍所記載之技術思想範疇內想到各種變更例或修正例，應了解：關於該等例子當然也屬於本發明之技術範圍。 The embodiments of the present invention have been described above with reference to the drawings, but the technical scope of the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and alterations are conceivable within the scope of the technical idea described in the claims. It should be understood that such examples are of course within the technical scope of the present invention.
例如，在束材5a、5b之交叉部的接合部7中，束材5a、5b之重疊部的上下關係(外周側與內周側的位置關係)並不限於前述之例。在本發明中，也可如圖1B所示，在一方之接合部7，束材5a為外周側，而束材5b配置於內 周側，而在另一接合部7，則與此相反，是束材5b為外周側，而束材5a配置於內周側。又，也可如圖7所示，在每個接合部7中，都是束材5a配置於外周側，而束材5b配置於內周側。另外，在光纖單元1a、1b中也一樣。 For example, in the joint portion 7 at the intersection of the bundle members 5a and 5b, the vertical relationship (the positional relationship between the outer peripheral side and the inner peripheral side) of the overlapping portion of the bundle members 5a and 5b is not limited to the above example. In the present invention, as shown in FIG. 1B, in one of the joint portions 7, the bundle member 5a is on the outer peripheral side, and the bundle member 5b is disposed inside. On the other hand, in the other joint portion 7, the bundle member 5b is on the outer peripheral side, and the bundle member 5a is disposed on the inner peripheral side. Further, as shown in Fig. 7, in each of the joint portions 7, the bundle member 5a is disposed on the outer peripheral side, and the bundle member 5b is disposed on the inner peripheral side. In addition, the same applies to the optical fiber units 1a and 1b.
1、1a、1b‧‧‧光纖單元 1, 1a, 1b‧‧‧ fiber unit
2‧‧‧光纖線 2‧‧‧Fiber optic cable
3‧‧‧光纖芯線 3‧‧‧Optical fiber core
3a‧‧‧光纖帶芯線 3a‧‧‧Fiber ribbon
5a、5b‧‧‧束材 5a, 5b‧‧‧ bundles
7‧‧‧接合部 7‧‧‧ joints
10、10a‧‧‧光纖纜線 10, 10a‧‧‧ fiber optic cable
11‧‧‧緩衝體 11‧‧‧ buffer
13‧‧‧外被 13‧‧‧External
15‧‧‧抗張體 15‧‧‧Anti-tension
17‧‧‧剝離繩 17‧‧‧ peeling rope
19‧‧‧槽 19‧‧‧ slot
21‧‧‧槽溝 21‧‧‧ trench
A、B、L‧‧‧範圍 A, B, L‧‧‧ range
C‧‧‧中心線 C‧‧‧ center line
D、E、F、G、H、I、J、K‧‧‧箭號 D, E, F, G, H, I, J, K‧‧‧ arrows
圖1A是顯示光纖單元1的立體圖。 圖1B是顯示光纖單元1的截面圖。 圖2A是顯示製造光纖單元1之步驟的圖。 圖2B是顯示製造光纖單元1之步驟的圖。 圖3A是顯示製造光纖單元1之步驟的圖。 圖3B是顯示製造光纖單元1之步驟的圖。 圖3C是顯示製造光纖單元1之步驟的圖。 圖4A是顯示光纖單元1a的立體圖。 圖4B是顯示光纖單元1a的截面圖。 圖5A是顯示光纖單元1b的立體圖。 圖5B是顯示光纖單元1b的截面圖。 圖6A是顯示光纖纜線10的圖。 圖6B是顯示光纖纜線10a的圖。 圖7是顯示光纖單元1的截面圖。FIG. 1A is a perspective view showing the optical fiber unit 1. FIG. 1B is a cross-sectional view showing the optical fiber unit 1. Fig. 2A is a view showing a step of manufacturing the optical fiber unit 1. Fig. 2B is a view showing the steps of manufacturing the optical fiber unit 1. FIG. 3A is a view showing a step of manufacturing the optical fiber unit 1. Fig. 3B is a view showing the steps of manufacturing the optical fiber unit 1. Fig. 3C is a view showing the steps of manufacturing the optical fiber unit 1. Fig. 4A is a perspective view showing the optical fiber unit 1a. Fig. 4B is a cross-sectional view showing the optical fiber unit 1a. Fig. 5A is a perspective view showing the optical fiber unit 1b. Fig. 5B is a cross-sectional view showing the optical fiber unit 1b. FIG. 6A is a diagram showing the optical fiber cable 10. Fig. 6B is a view showing the optical fiber cable 10a. FIG. 7 is a cross-sectional view showing the optical fiber unit 1.
Claims (6)
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| CN101765797A (en) * | 2007-08-02 | 2010-06-30 | 株式会社藤仓 | Optical fiber cable |
| JP2012212097A (en) * | 2011-03-23 | 2012-11-01 | Fujikura Ltd | Optical fiber unit, manufacturing method of optical fiber unit, and optical fiber cable using optical fiber unit |
| TW201527814A (en) * | 2013-10-07 | 2015-07-16 | Fujikura Ltd | Optical-fibre unit, optical-fibre branching method, and optical-fibre cable |
| TW201606376A (en) * | 2014-05-09 | 2016-02-16 | Fujikura Ltd | Optical fiber cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101765797A (en) * | 2007-08-02 | 2010-06-30 | 株式会社藤仓 | Optical fiber cable |
| JP2012212097A (en) * | 2011-03-23 | 2012-11-01 | Fujikura Ltd | Optical fiber unit, manufacturing method of optical fiber unit, and optical fiber cable using optical fiber unit |
| TW201527814A (en) * | 2013-10-07 | 2015-07-16 | Fujikura Ltd | Optical-fibre unit, optical-fibre branching method, and optical-fibre cable |
| TW201606376A (en) * | 2014-05-09 | 2016-02-16 | Fujikura Ltd | Optical fiber cable |
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