JP7407549B2 - Optical fiber sheath removal device and optical fiber sheath removal method - Google Patents
Optical fiber sheath removal device and optical fiber sheath removal method Download PDFInfo
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- 239000013307 optical fiber Substances 0.000 title claims description 245
- 238000000034 method Methods 0.000 title claims description 19
- 239000011248 coating agent Substances 0.000 claims description 126
- 238000000576 coating method Methods 0.000 claims description 126
- 239000003365 glass fiber Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Description
本発明は、複数本の光ファイバ心線の外被を、一括して所定の長さで除去することが可能な光ファイバ被覆除去器及び光ファイバ被覆除去方法に関する。 The present invention relates to an optical fiber sheath removal device and an optical fiber sheath removal method that can remove the sheaths of a plurality of coated optical fibers at once to a predetermined length.
従来、光ファイバ心線同士を接続する際には、光ファイバ心線の先端部分の所定範囲の被覆（外被）を除去して、接続対象の光ファイバ心線同士を突き合わせて融着する方法が採られる。光ファイバ心線の外被を除去する方法としては、光ファイバ被覆除去器が用いられる。 Conventionally, when connecting optical fibers, a predetermined area of the coating (sheath) at the tip of the optical fibers is removed, and the optical fibers to be connected are butted and fused together. is taken. An optical fiber sheath remover is used as a method for removing the sheath of a coated optical fiber.
光ファイバ被覆除去器は、光ファイバ心線の先端を挟み込むヒータ及び弾性部材と光ファイバ心線の外被を挟み込む一対の被覆除去刃とを有する。外被をヒータで加熱した状態で、光ファイバ心線の外被に被覆除去刃を挿入し、被覆除去刃を光ファイバ心線の先端側に相対的に移動させることで、外被を除去し、内部のガラスファイバを露出させることができる（例えば、特許文献１、２）。 The optical fiber sheath remover includes a heater and an elastic member that sandwich the tip of the optical fiber, and a pair of sheath removal blades that sandwich the outer sheath of the optical fiber. With the outer sheath heated by a heater, insert the sheath removal blade into the outer sheath of the optical fiber, and remove the sheath by moving the sheath removal blade relatively toward the tip of the optical fiber. , the internal glass fiber can be exposed (for example, Patent Documents 1 and 2).
近年、多量のデータを高速で伝送するための光ファイバとして、ケーブルへの収納や作業の簡易化のため、複数本の光ファイバ心線が並列に配置されて接着された光ファイバテープ心線が用いられている。また、並列した光ファイバを全長にわたって樹脂で固着された光ファイバテープ心線の他、光ファイバ心線同士が間欠的に接着されたリボン線がある。光ファイバ心線同士の間欠的な接着は、集線密度の向上や曲げによる伝送ロスの低減、単心化をしやすくするなどの特徴を持つ。 In recent years, optical fiber ribbons, in which multiple optical fibers are arranged in parallel and bonded together, have been used as optical fibers for transmitting large amounts of data at high speeds to simplify storage and work. It is used. In addition to optical fiber ribbons in which parallel optical fibers are bonded over their entire length with resin, there are also ribbon wires in which optical fibers are intermittently bonded together. Intermittent bonding of optical fiber cores has features such as improving concentration density, reducing transmission loss due to bending, and making it easier to create single fibers.
このような複数の光ファイバ心線が併設された光ファイバテープ心線又はリボン線（以下単に光ファイバテープ心線等とする）同士の接続に際しては、複数の光ファイバ心線の被覆除去を一括で行う必要がある。図６（ａ）は、被覆除去器の一部の構成を示す模式図である。光ファイバ心線１１１は、一対の被覆除去刃１１７により挟み込まれる。この際、被覆除去刃１１７は、光ファイバ心線１１１の内部のガラスファイバには到達せず、外部の外被にのみ先端が挿入される。 When connecting optical fiber tape or ribbon wires (hereinafter referred to simply as optical fiber tape, etc.) in which multiple optical fiber cores are installed together, the sheathing of multiple optical fiber core wires must be removed at once. It is necessary to do so. FIG. 6(a) is a schematic diagram showing the configuration of a part of the coating remover. The optical fiber core 111 is sandwiched between a pair of coating removal blades 117. At this time, the tip of the sheath removal blade 117 does not reach the glass fiber inside the optical fiber core 111, but is inserted only into the outer sheath.
被覆除去刃１１７の背面側（図中左側）には、弾性部材１１３とヒータ１１５とが配置され、光ファイバ心線１１１の先端部が、ヒータ１１５と弾性部材１１３とで挟み込まれる。ヒータ１１５によって、被覆除去刃１１７の背面側に位置する光ファイバ心線１１１の外被が加熱され、軟化する。 An elastic member 113 and a heater 115 are arranged on the back side (left side in the figure) of the coating removal blade 117, and the tip of the optical fiber core 111 is sandwiched between the heater 115 and the elastic member 113. The heater 115 heats and softens the outer sheath of the optical fiber core 111 located on the back side of the sheath removal blade 117.
この状態で、光ファイバ心線１１１を被覆除去刃１１７に対して引き抜くと（図中矢印Ｘ）、光ファイバ心線１１１の外被１１１ｂが被覆除去刃１１７によって剥ぎ取られ、内部のガラスファイバ１１１ａが露出する。光ファイバ心線１１１を完全に被覆除去刃１１７から引き抜くと、光ファイバ心線１１１の先端側の所定長さの外被１１１ｂを除去することができる。 In this state, when the optical fiber core 111 is pulled out against the sheath removal blade 117 (arrow X in the figure), the outer sheath 111b of the optical fiber core 111 is stripped off by the sheath removal blade 117, and the inner glass fiber 111a is removed. is exposed. When the optical fiber coated wire 111 is completely pulled out from the sheath removal blade 117, a predetermined length of the outer sheath 111b on the distal end side of the optical fiber coated wire 111 can be removed.
図７（ａ）は、光ファイバテープ心線等の外被を除去する際の平面図であり、弾性部材及び上方の被覆除去刃を透視した図である。前述したように、光ファイバテープ心線等は、複数の光ファイバ心線１１１が併設される。このため、複数の光ファイバ心線１１１が併設された状態で、被覆除去刃１１７によって外被が挟み込まれる。 FIG. 7(a) is a plan view when removing the outer sheath of the optical fiber tape or the like, and is a transparent view of the elastic member and the upper sheath removal blade. As described above, in the optical fiber ribbon or the like, a plurality of optical fibers 111 are installed side by side. Therefore, the outer sheath is sandwiched between the sheath removal blades 117 in a state where a plurality of optical fiber cores 111 are installed side by side.
図７（ｂ）は、図６（ｂ）の状態の平面図である。図７（ａ）の状態から、光ファイバ心線１１１を被覆除去刃１１７から離れる方向に引き抜くと（図中矢印Ｘ）、それぞれの光ファイバ心線１１１の外被１１１ｂが剥ぎ取られる。 FIG. 7(b) is a plan view of the state shown in FIG. 6(b). When the optical fiber coated wire 111 is pulled out in the direction away from the sheath removal blade 117 from the state of FIG. 7(a) (arrow X in the figure), the outer sheath 111b of each optical fiber coated wire 111 is stripped off.
しかし、剥ぎ取られた外被１１１ｂは、被覆除去刃１１７の背面側に堆積するため、隣り合う光ファイバの除去された外被１１１ｂ同士が互いに干渉する。このため、図７（ｃ）に示すように、光ファイバ心線１１１の引き抜きが進行し、被覆除去刃１１７の背面側に堆積する外被１１１ｂが増えるにつれて、光ファイバ心線１１１の先端が徐々に開き始める（図中矢印Ｙ）。 However, since the stripped outer sheath 111b is deposited on the back side of the sheath removal blade 117, the removed outer sheaths 111b of adjacent optical fibers interfere with each other. Therefore, as shown in FIG. 7(c), as the drawing of the optical fiber 111 progresses and the amount of sheath 111b deposited on the back side of the sheath removal blade 117 increases, the tip of the optical fiber 111 gradually shifts. It begins to open (arrow Y in the figure).
このように、光ファイバ心線１１１の先端が広がっていくと、光ファイバ心線１１１の引き抜き方向に対して光ファイバ心線１１１が斜めに配置され、被覆除去刃１１７とのなす角度が垂直ではなくなる。このため、被覆除去刃１１７に対して垂直な方向に光ファイバ心線１１１を引き抜く場合と比較して、引き抜き抵抗が大きくなる。特に、光ファイバテープ心線等は、光ファイバ心線１１１が複数本併設されるため、引き抜き抵抗が大きくなることで、被覆除去作業が困難となる場合がある。 As the tip of the optical fiber coated wire 111 widens in this way, the optical fiber coated wire 111 is disposed obliquely with respect to the drawing direction of the optical fiber coated wire 111, and the angle formed with the coating removal blade 117 is not perpendicular. It disappears. Therefore, compared to the case where the optical fiber core wire 111 is pulled out in a direction perpendicular to the coating removal blade 117, the pulling resistance becomes larger. In particular, in the case of an optical fiber tape coated wire or the like, since a plurality of optical fiber coated wires 111 are installed side by side, the pulling resistance increases, which may make it difficult to remove the coating.
また、一度、光ファイバ心線１１１の先端が開いた状態となると、その形態が維持される。このため、その後の光ファイバ心線１１１の先端部の切断作業時に、光ファイバ心線１１１ごとに切断長さにばらつきが生じる要因となる。 Further, once the tip of the optical fiber coated wire 111 is in an open state, that shape is maintained. For this reason, during the subsequent cutting operation of the tip end portion of the optical fiber coated wire 111, this becomes a factor that causes variation in the cut length for each coated optical fiber 111.
本発明は、このような問題に鑑みてなされたもので、被覆除去作業が容易であり、効率良く、複数の光ファイバ心線からなる光ファイバテープ心線等の先端部分の外被を除去することが可能な光ファイバ被覆除去器及び光ファイバ被覆除去方法を提供することを目的とする。 The present invention has been made in view of these problems, and it is easy to remove the coating and efficiently removes the outer coating from the tip of an optical fiber ribbon made of a plurality of optical fibers. An object of the present invention is to provide an optical fiber sheath removal device and an optical fiber sheath removal method that can remove the coating from an optical fiber.
前述した目的を達成するため、第１の発明は、複数の光ファイバ心線の外被を一括して除去する光ファイバ被覆除去器であって、前記複数の光ファイバ心線の外被を除去する本体部と、前記本体部に対してスライド動作可能であり、前記複数の光ファイバ心線が保持される可動部と、を具備し、前記本体部の前記可動部側を前面側とし、その逆側を背面側とした際に、前記本体部は、前記複数の光ファイバ心線の外被を挟み込む一対の被覆除去刃と、前記被覆除去刃の背面側において、前記複数の光ファイバ心線を軸方向にスライド可能に挟持する挟持部と、を有し、前記被覆除去刃の前面側又は背面側の少なくとも一方に、前記複数の光ファイバ心線の幅方向の位置を規制するガイド部が形成され、前記挟持部は、前記被覆除去刃の背面側に対向して配置されたヒータと、外被の除去の際に生じた除去後の外被屑によって変形可能な弾性部材により形成され、前記被覆除去刃の背面に逃げ部が形成され、前記逃げ部は、前記被覆除去刃と前記挟持部との間に、前記弾性部材に隣接するように形成される空間であって、一対の前記被覆除去刃同士の上下の間隔に対して、空間の高さが高くなる部位であることを特徴とする光ファイバ被覆除去器である。
第２の発明は、複数の光ファイバ心線の外被を一括して除去する光ファイバ被覆除去器であって、前記複数の光ファイバ心線の外被を除去する本体部と、前記本体部に対してスライド動作可能であり、前記複数の光ファイバ心線が保持される可動部と、を具備し、前記本体部の前記可動部側を前面側とし、その逆側を背面側とした際に、前記本体部は、前記複数の光ファイバ心線の外被を挟み込む一対の被覆除去刃と、前記被覆除去刃の背面側において、前記複数の光ファイバ心線を軸方向にスライド可能に挟持する挟持部と、を有し、前記被覆除去刃の前面側又は背面側の少なくとも一方に、前記複数の光ファイバ心線の幅方向の位置を規制するガイド部が形成され、前記挟持部は、前記被覆除去刃の背面側に対向して配置されたヒータと弾性部材により形成され、前記被覆除去刃の背面に逃げ部が形成され、前記逃げ部は、前記被覆除去刃と前記挟持部との間に形成される空間であって、一対の前記被覆除去刃同士の上下の間隔に対して、空間の高さが高くなる部位であり、前記逃部は上下面で囲まれた空間であり、前記逃げ部の下方の面高さと前記ヒータの面高さはほぼ一致することを特徴とする光ファイバ被覆除去器である。
第３の発明は、複数の光ファイバ心線の外被を一括して除去する光ファイバ被覆除去器であって、前記複数の光ファイバ心線の外被を除去する本体部と、前記本体部に対してスライド動作可能であり、前記複数の光ファイバ心線が保持される可動部と、を具備し、前記本体部の前記可動部側を前面側とし、その逆側を背面側とした際に、前記本体部は、前記複数の光ファイバ心線の外被を挟み込む一対の被覆除去刃と、前記被覆除去刃の背面側において、前記複数の光ファイバ心線を軸方向にスライド可能に挟持する挟持部と、を有し、前記被覆除去刃の前面側又は背面側の少なくとも一方に、前記複数の光ファイバ心線の幅方向の位置を規制するガイド部が形成され、前記挟持部は、前記被覆除去刃の背面側に対向して配置されたヒータと弾性部材により形成され、前記被覆除去刃の背面に逃げ部が形成され、前記逃げ部は、前記被覆除去刃と前記挟持部との間に形成される空間であって、一対の前記被覆除去刃同士の上下の間隔に対して、空間の高さが高くなる部位であり、前記逃部は上下面で囲まれた空間であり、前記逃げ部の空間の高さは、０．２０～０．２５ｍｍであることを特徴とする光ファイバ被覆除去器である。
前記逃げ部の長さであって、前記ヒータから前記被覆除去刃までの水平距離は、０．３～１．０ｍｍであることが望ましい。
In order to achieve the above-mentioned object, a first invention provides an optical fiber sheath remover for removing the outer sheaths of a plurality of coated optical fibers at once, the first invention comprising: removing the outer sheaths of the plurality of coated optical fibers; and a movable part that is slidable relative to the main body and holds the plurality of optical fibers, the movable part side of the main body being the front side, When the opposite side is the back side, the main body portion includes a pair of sheath removal blades that sandwich the outer sheaths of the plurality of coated optical fibers, and a pair of sheath removal blades that sandwich the outer sheaths of the plurality of coated optical fibers, and a holding part that slidably holds the optical fibers in the axial direction, and a guide part that regulates the position of the plurality of optical fibers in the width direction on at least one of the front side and the back side of the coating removal blade. and the holding part is formed by a heater disposed opposite to the back side of the sheath removal blade and an elastic member deformable by the removed sheath waste generated when removing the sheath , A relief portion is formed on the back surface of the coating removal blade, and the relief portion is a space formed adjacent to the elastic member between the coating removal blade and the holding portion, and the relief portion is a space adjacent to the elastic member . This optical fiber sheathing remover is characterized in that the height of the space is higher than the vertical distance between the sheathing removal blades.
A second invention is an optical fiber sheath remover that removes the outer sheaths of a plurality of coated optical fibers at once, comprising: a main body portion for removing the outer sheaths of the plurality of coated optical fibers; a movable part that is capable of sliding relative to the main body and holds the plurality of optical fiber cores, the movable part side of the main body being the front side and the opposite side being the back side; The main body portion includes a pair of coating removal blades that sandwich the outer sheaths of the plurality of coated optical fibers, and a back surface side of the coating removal blades that sandwich the plurality of coated optical fibers so as to be slidable in the axial direction. A guide portion is formed on at least one of the front side or the back side of the coating removal blade for regulating the position of the plurality of optical fibers in the width direction, and the holding portion includes: A relief part is formed on the back surface of the coating removal blade, and the relief part is formed by a heater and an elastic member arranged opposite to each other on the back side of the coating removal blade, and the relief part is formed between the coating removal blade and the clamping part. A space formed between the pair of coating removal blades, the height of the space is higher than the vertical distance between the pair of coating removal blades, and the escape part is a space surrounded by the upper and lower surfaces, The optical fiber coating remover is characterized in that a lower surface height of the relief portion and a surface height of the heater substantially match.
A third invention is an optical fiber sheath remover that removes the outer sheaths of a plurality of coated optical fibers at once, comprising: a main body portion for removing the outer sheaths of the plurality of coated optical fibers; a movable part that is capable of sliding relative to the main body and holds the plurality of optical fiber cores, the movable part side of the main body being the front side and the opposite side being the back side; The main body portion includes a pair of coating removal blades that sandwich the outer sheaths of the plurality of coated optical fibers, and a back surface side of the coating removal blades that sandwich the plurality of coated optical fibers so as to be slidable in the axial direction. A guide portion is formed on at least one of the front side or the back side of the coating removal blade for regulating the position of the plurality of optical fibers in the width direction, and the holding portion includes: A relief part is formed on the back surface of the coating removal blade, and the relief part is formed by a heater and an elastic member arranged opposite to each other on the back side of the coating removal blade, and the relief part is formed between the coating removal blade and the clamping part. A space formed between the pair of coating removal blades, the height of the space is higher than the vertical distance between the pair of coating removal blades, and the escape part is a space surrounded by the upper and lower surfaces, The optical fiber coating remover is characterized in that the height of the space of the relief part is 0.20 to 0.25 mm.
It is preferable that the length of the escape portion, that is, the horizontal distance from the heater to the coating removal blade, is 0.3 to 1.0 mm.
前記ガイド部は、少なくとも前記被覆除去刃の背面側であって、前記ヒータの幅方向端部近傍に形成されてもよい。 The guide portion may be formed at least on the back side of the coating removal blade and near an end in the width direction of the heater.
前記ガイド部は、少なくとも前記被覆除去刃の前面側であって、前記被覆除去刃と一体で形成されてもよい。 The guide portion may be formed integrally with the coating removal blade, at least on the front side of the coating removal blade.
前記ガイド部の幅は、３．０ｍｍ～４．５ｍｍであることが望ましい。 The width of the guide portion is preferably 3.0 mm to 4.5 mm.
第１から第３の発明によれば、複数の光ファイバ心線の幅方向の位置を規制するガイド部が形成されるため、それぞれの光ファイバ心線が被覆除去時に広がることを抑制することができる。このため、引き抜き作業が容易であり、その後の光ファイバ心線の切断時においても、精度よく切断を行うことができる。また、外被の除去の際に生じた除去後の外被屑が、逃げ部の空間に堆積し、さらに、逃げ部からあふれた外被屑は、弾性部材を変形させて、弾性部材側に逃げることができる。 According to the first to third inventions, since the guide portion is formed to regulate the position of the plurality of coated optical fibers in the width direction, it is possible to suppress the spread of each coated optical fiber when removing the coating. can. Therefore, the drawing operation is easy, and even when cutting the optical fiber core wire thereafter, the cutting can be performed with high precision. In addition, the removed jacket debris generated when removing the jacket accumulates in the space of the relief part, and furthermore, the jacket debris that overflows from the relief part deforms the elastic member and moves toward the elastic member side. You can run away.
なお、ガイド部を被覆除去刃の背面側に形成する際には、被覆除去刃の背面側に配置されるヒータの幅方向の両端部近傍に形成することで、ヒータ上の光ファイバ心線の幅方向への広がりを規制することができる。 In addition, when forming the guide portion on the back side of the coating removal blade, by forming it near both ends in the width direction of the heater arranged on the back side of the coating removal blade, it is possible to prevent the optical fiber core on the heater from being formed. Expansion in the width direction can be restricted.
また、ガイド部を被覆除去刃の前面側に形成する際には、被覆除去刃の両側に被覆除去刃と一体で形成することで、被覆除去刃における光ファイバ心線の幅方向への広がりを規制することができる。 In addition, when forming the guide section on the front side of the sheath removal blade, by forming it integrally with the sheath removal blade on both sides of the sheath removal blade, it is possible to prevent the spread of the optical fiber in the width direction at the sheath removal blade. Can be regulated.
ここで、ガイド部の幅が３．０ｍｍ～４．５ｍｍであれば、例えば一般的な３～３．６ｍｍ程度の光ファイバテープ心線等に対して特に有効である。 Here, if the width of the guide part is 3.0 mm to 4.5 mm, it is particularly effective for, for example, a general optical fiber tape core of about 3 to 3.6 mm.
第４の発明は、第２、第３の発明にかかる光ファイバ被覆除去器を用いた光ファイバ被覆除去方法であって、外径が２２５μｍ以下の複数の光ファイバ心線を前記可動部に設置し、前記複数の光ファイバ心線の先端部を、前記挟持部で挟み込むとともに、前記被覆除去刃で挟み込み、前記可動部を前記本体部から離していくことで、前記複数の光ファイバ心線の外被を除去することを特徴とする被覆除去器を用いた光ファイバ被覆除去方法である。 A fourth invention is an optical fiber sheath removal method using the optical fiber sheath remover according to the second and third inventions, wherein a plurality of coated optical fibers having an outer diameter of 225 μm or less are installed in the movable part. The tips of the plurality of coated optical fibers are held between the clamping parts and the sheath removal blades, and the movable part is separated from the main body, thereby removing the ends of the plurality of coated optical fibers. This is an optical fiber coating removal method using a coating remover, which is characterized in that the outer coating is removed.
前記ガイド部の幅は、前記複数の光ファイバ心線の総幅の１．１５倍以上、１．２５倍以下であってもよい。
前記逃げ部の容量が、除去される外被の全総体積よりも小さくてもよい。
The width of the guide portion may be greater than or equal to 1.15 times and less than or equal to 1.25 times the total width of the plurality of coated optical fibers.
The volume of the relief may be smaller than the total volume of the envelope to be removed.
第５の発明は、複数の光ファイバ心線の外被を一括して除去する光ファイバ被覆除去器であって、前記複数の光ファイバ心線の外被を除去する本体部と、前記本体部に対してスライド動作可能であり、前記複数の光ファイバ心線が保持される可動部と、を具備し、前記本体部の前記可動部側を前面側とし、その逆側を背面側とした際に、前記本体部は、前記複数の光ファイバ心線の外被を挟み込む一対の被覆除去刃と、前記被覆除去刃の背面側において、前記複数の光ファイバ心線を軸方向にスライド可能に挟持する挟持部と、を有し、前記被覆除去刃の前面側又は背面側の少なくとも一方に、前記複数の光ファイバ心線の幅方向の位置を規制するガイド部が形成され、前記挟持部は、前記被覆除去刃の背面側に対向して配置されたヒータと弾性部材により形成され、前記被覆除去刃の背面に逃げ部が形成され、前記逃げ部は、前記被覆除去刃と前記挟持部との間に形成される空間であって、一対の前記被覆除去刃同士の上下の間隔に対して、空間の高さが高くなる部位であることを特徴とする光ファイバ除去器を用いた光ファイバ被覆除去方法であって、外径が２２５μｍ以下の複数の光ファイバ心線を前記可動部に設置し、前記複数の光ファイバ心線の先端部を、前記挟持部で挟み込むとともに、前記被覆除去刃で挟み込み、前記可動部を前記本体部から離していくことで、前記複数の光ファイバ心線の外被を除去し、前記逃げ部の容量が、除去される外被の全総体積よりも小さいことを特徴とする光ファイバ被覆除去方法である。
第４、第５の発明によれば、特に２２５μｍ以下の細径の光ファイバ心線が併設された光ファイバテープ心線等に対して、効率良く被覆を除去することができる。
A fifth invention is an optical fiber sheath remover that removes the outer sheaths of a plurality of coated optical fibers at once, comprising: a main body portion for removing the outer sheaths of the plurality of coated optical fibers; a movable part that is capable of sliding relative to the main body and holds the plurality of optical fiber cores, the movable part side of the main body being the front side and the opposite side being the back side; The main body portion includes a pair of coating removal blades that sandwich the outer sheaths of the plurality of coated optical fibers, and a back surface side of the coating removal blades that sandwich the plurality of coated optical fibers so as to be slidable in the axial direction. A guide portion is formed on at least one of the front side or the back side of the coating removal blade for regulating the position of the plurality of optical fibers in the width direction, and the holding portion includes: A relief part is formed on the back surface of the coating removal blade, and the relief part is formed by a heater and an elastic member arranged opposite to each other on the back side of the coating removal blade, and the relief part is formed between the coating removal blade and the clamping part. Optical fiber coating using an optical fiber remover, characterized in that the space formed between the pair of coating removal blades is a part where the height of the space is higher than the vertical distance between the pair of coating removal blades. In the removing method, a plurality of coated optical fibers having an outer diameter of 225 μm or less are installed in the movable part, tips of the plurality of coated optical fibers are held between the holding parts, and the coating removal blade is used By pinching and separating the movable part from the main body part, the jacket of the plurality of optical fiber core wires is removed, and the capacity of the escape part is smaller than the total volume of the jacket to be removed. This is an optical fiber coating removal method characterized by the following.
According to the fourth and fifth aspects of the invention, the coating can be efficiently removed particularly from an optical fiber ribbon coated with a thin optical fiber coated wire having a diameter of 225 μm or less.
特に、ガイド部の幅を、光ファイバテープ心線等の全幅の１．１５倍以上、１．２倍以下とすることで、効率良く光ファイバテープ心線等の幅方向の広がりを抑制することができる。 In particular, by setting the width of the guide portion to 1.15 times or more and 1.2 times or less the total width of the optical fiber tape, etc., it is possible to efficiently suppress the spread of the optical fiber tape, etc. in the width direction. Can be done.
本発明によれば、被覆除去作業が容易であり、効率良く、複数の光ファイバ心線からなる光ファイバテープ心線等の先端部分の外被を除去することが可能な光ファイバ被覆除去器及び光ファイバ被覆除去方法を提供することができる。 Advantageous Effects of Invention According to the present invention, an optical fiber sheathing remover and an optical fiber sheathing remover are provided that allow easy sheathing work and efficiently remove the outer sheath of the tip end portion of an optical fiber ribbon made of a plurality of optical fibers. An optical fiber coating removal method can be provided.
以下、本発明の実施の形態にかかる光ファイバ被覆除去器１について説明する。図１は、光ファイバ被覆除去器１を示す斜視図であり、図１（ａ）は可動部５を本体部３側に移動させた状態を示す図、図１（ｂ）は可動部５を本体部３から離れる方向に移動させた状態を示す図である。ここで、図１（ａ）、図１（ｂ）に示すように、本体部３から見て可動部５側（図中Ａ方向。以下同様。）を前面側とし、その逆側（図中Ｂ方向。以下同様。）を背面側とする。 An optical fiber sheath remover 1 according to an embodiment of the present invention will be described below. FIG. 1 is a perspective view showing the optical fiber coating remover 1, FIG. 1(a) is a view showing the movable part 5 moved toward the main body part 3, and FIG. 1(b) is a diagram showing the movable part 5. 3 is a diagram illustrating a state in which it has been moved in a direction away from the main body portion 3. FIG. Here, as shown in FIGS. 1(a) and 1(b), the movable part 5 side (direction A in the figure; the same applies hereinafter) when viewed from the main body 3 is the front side, and the opposite side (in the figure) is the front side. Direction B (hereinafter the same) is the back side.
光ファイバ被覆除去器１は、併設された複数の光ファイバ心線の外被を一括して除去するものである。光ファイバ被覆除去器１は、主に本体部３、可動部５等から構成される。本体部３は、略直方体の部材であり、光ファイバ心線の外被を除去する部位である。本体部３の前面側（図中Ａ側）の端部近傍には、光ファイバ心線の外被を挟み込む一対の被覆除去刃１７が配置される。 The optical fiber sheath remover 1 removes the sheaths of a plurality of optical fibers installed together at once. The optical fiber sheath remover 1 mainly includes a main body part 3, a movable part 5, and the like. The main body part 3 is a substantially rectangular parallelepiped member, and is a part from which the outer sheath of the optical fiber is removed. A pair of sheath removal blades 17 that sandwich the outer sheath of the optical fiber are arranged near the end of the main body 3 on the front side (A side in the figure).
図２は、被覆除去刃１７を示す図である。被覆除去刃１７は、板状の部材に対して、前面側（図中Ａ側）が所定の幅で斜めに切除された形態である。被覆除去刃１７の前面側であって被覆除去刃１７の両側には、斜めに切除されていない板厚部分が存在し、側面がガイド部２１を構成する。すなわち、ガイド部２１は、被覆除去刃１７の前面側であって、被覆除去刃１７と一体で形成される。なお、被覆除去刃１７の背面側（図中Ｂ側）には逃げ部１９が形成される。逃げ部１９については詳細を後述する。 FIG. 2 is a diagram showing the coating removal blade 17. The coating removal blade 17 has a shape in which the front side (side A in the figure) of a plate-shaped member is obliquely cut off with a predetermined width. On the front side of the coating removal blade 17 and on both sides of the coating removal blade 17, there is a plate thickness portion that is not cut diagonally, and the side surfaces constitute the guide portion 21. That is, the guide portion 21 is on the front side of the coating removal blade 17 and is formed integrally with the coating removal blade 17. Note that a relief portion 19 is formed on the back side (B side in the figure) of the coating removal blade 17. Details of the relief portion 19 will be described later.
図１（ａ）、図１（ｂ）に示すように、本体部３は、ヒンジを介して開閉可能な蓋部７を有する。本体部３の被覆除去刃１７の背面側（図中Ｂ側）には、ヒータ１５が配置される。また、蓋部７を閉じた際に、ヒータ１５と対向する部位には、弾性部材１３が配置される。弾性部材１３は、硬度が４０度程度の例えばシリコンゴム製であり、容易に弾性変形可能である。蓋部７を閉じることで、ヒータ１５と弾性部材１３とが対向して配置された挟持部によって、被覆除去刃１７の背面側において複数の光ファイバ心線を挟み込むことが可能である。なお、前述した一対の被覆除去刃１７の一方は蓋部７に配置され、蓋部７を閉じることで、光ファイバ心線の外被を一対の被覆除去刃１７で挟み込むことができる。 As shown in FIGS. 1(a) and 1(b), the main body 3 has a lid 7 that can be opened and closed via a hinge. A heater 15 is arranged on the back side (B side in the figure) of the coating removal blade 17 of the main body part 3. Further, an elastic member 13 is disposed at a portion facing the heater 15 when the lid portion 7 is closed. The elastic member 13 is made of silicone rubber, for example, and has a hardness of about 40 degrees, and is easily elastically deformable. By closing the lid part 7, it is possible to sandwich a plurality of optical fibers on the back side of the coating removal blade 17 by the holding part in which the heater 15 and the elastic member 13 are arranged facing each other. Note that one of the pair of sheath removal blades 17 described above is disposed on the lid 7, and by closing the lid 7, the outer sheath of the optical fiber can be sandwiched between the pair of sheath removal blades 17.
本体部３には、バッテリが内蔵されており、ヒータ１５を稼働することができる。例えば、光ファイバを配置した状態で蓋部７を閉じると、ヒータ１５のスイッチが入り、ヒータ１５が稼働する。この際、本体部３には、ヒータ１５の稼働状態を示すランプが配置される。なお、ヒータ１５近傍の形態の詳細は後述する。 The main body part 3 has a built-in battery and can operate the heater 15. For example, when the lid part 7 is closed with the optical fiber arranged, the heater 15 is turned on and starts operating. At this time, a lamp indicating the operating state of the heater 15 is arranged on the main body part 3. Note that details of the configuration near the heater 15 will be described later.
本体部３の前面側には、スライドガイド４が設けられ、本体部３には、スライドガイド４を介して可動部５が連結される。可動部５は、複数の光ファイバ心線が保持される部位である。可動部５は、本体部３に対してスライド動作可能である。すなわち、可動部５は、スライドガイド４によって、本体部３との距離が変わるように動作可能であり、本体部３の挟持部は、被覆除去刃１７の背面側において、複数の光ファイバ心線を軸方向にスライド可能に挟持する。 A slide guide 4 is provided on the front side of the main body part 3, and a movable part 5 is connected to the main body part 3 via the slide guide 4. The movable part 5 is a part where a plurality of coated optical fibers are held. The movable part 5 can slide relative to the main body part 3. That is, the movable part 5 is movable by the slide guide 4 so as to change the distance from the main body part 3, and the holding part of the main body part 3 holds a plurality of optical fiber cores on the back side of the coating removal blade 17. is held so that it can slide in the axial direction.
可動部５は、ヒンジを介して開閉可能な蓋部９を有する。また、可動部５には、光ファイバ心線が保持されたホルダが設置されるホルダ設置部１１を有する。ホルダ設置部１１に、光ファイバ心線が保持されたホルダを設置し、蓋部９を閉じることで、ホルダを固定することができる。なお、ホルダを用いずに、光ファイバテープ心線等を直接可動部に保持可能であってもよい。 The movable part 5 has a lid part 9 that can be opened and closed via a hinge. Moreover, the movable part 5 has a holder installation part 11 in which a holder holding an optical fiber core is installed. The holder can be fixed by installing the holder holding the optical fiber in the holder installation part 11 and closing the lid part 9. Note that it may be possible to directly hold the optical fiber tape or the like on the movable part without using a holder.
次に、被覆除去刃１７の近傍の形態について詳細に説明する。図３（ａ）は、蓋部７（図１（ａ）、図１（ｂ）参照）を閉じて、被覆除去刃１７同士を対向させた状態を示す断面図である。前述したように、被覆除去刃１７の前面側（図中Ａ側）には、テーパ状にガイド部２１が設けられ、被覆除去刃１７の背面側（図中Ｂ側）には、逃げ部１９が形成される。また、被覆除去刃１７及び逃げ部１９のさらに背面側には、ヒータ１５と弾性部材１３とが対向配置される。なお、逃げ部１９の下方の面高さとヒータ１５の面高さはほぼ一致する。 Next, the configuration of the vicinity of the coating removal blade 17 will be described in detail. FIG. 3(a) is a sectional view showing a state in which the lid portion 7 (see FIGS. 1(a) and 1(b)) is closed and the coating removal blades 17 are opposed to each other. As described above, the tapered guide portion 21 is provided on the front side of the coating removal blade 17 (side A in the figure), and the relief portion 19 is provided on the back side of the coating removal blade 17 (side B in the figure). is formed. Further, on the back side of the coating removal blade 17 and the relief portion 19, a heater 15 and an elastic member 13 are disposed to face each other. Note that the lower surface height of the relief portion 19 and the surface height of the heater 15 substantially match.
図３（ｂ）は、図３（ａ）のＣ部拡大図である。逃げ部１９は、被覆除去刃１７同士の上下の間隔に対して、高さが高くなる部位であり、被覆除去刃１７とヒータ１５及び弾性部材１３との間に形成される空間である。なお、被覆除去刃１７同士の間隔は、被覆を除去する光ファイバ心線の径に応じて設定される。例えば、光ファイバ心線の内部のガラスファイバの径よりもわずかに大きく設定され、外被にのみ被覆除去刃１７が刺さるように設定される。 FIG. 3(b) is an enlarged view of section C in FIG. 3(a). The relief portion 19 is a portion whose height is higher than the vertical distance between the coating removal blades 17 and is a space formed between the coating removal blade 17, the heater 15, and the elastic member 13. The distance between the coating removal blades 17 is set according to the diameter of the optical fiber from which the coating is to be removed. For example, it is set to be slightly larger than the diameter of the glass fiber inside the optical fiber core wire, and set so that the sheath removal blade 17 pierces only the outer sheath.
ここで、逃げ部１９の高さ（図中Ｅ）は、例えば、０．２０～０．２５ｍｍであることが望ましい。なお、逃げ部１９の高さは、必ずしも光ファイバ心線の外径と一致させなくてもよい。例えば、逃げ部１９の高さを０．２０ｍｍとして、ここに０．２５ｍｍ径の光ファイバを配置しても、外被の変形によって光ファイバ心線を挟み込むことができる。また、逃げ部１９の高さを０．２５ｍｍとして、ここに０．２０ｍｍ径の光ファイバを配置し、光ファイバ心線との間に隙間が生じてもよい。 Here, the height of the relief portion 19 (E in the figure) is preferably, for example, 0.20 to 0.25 mm. Note that the height of the relief portion 19 does not necessarily have to match the outer diameter of the optical fiber core. For example, even if the height of the relief part 19 is 0.20 mm and an optical fiber with a diameter of 0.25 mm is placed there, the optical fiber can be sandwiched by the deformation of the outer cover. Alternatively, the height of the relief portion 19 may be set to 0.25 mm, and an optical fiber having a diameter of 0.20 mm may be placed here, so that a gap is created between the relief portion 19 and the optical fiber core wire.
但し、光ファイバ心線の径に対して逃げ部１９の高さＥが低すぎると、光ファイバ心線の外被の変形で吸収しきれずに、内部のガラスファイバへ過剰な力が付与されるため望ましくない。一方、光ファイバ心線の径に対して逃げ部１９の高さＥが高すぎると、被覆除去刃１７の中心と、ヒータ１５上の光ファイバ心線の中心との差が大きくなり、外被の除去の際の抵抗が大きくなるため望ましくない。 However, if the height E of the relief portion 19 is too low relative to the diameter of the optical fiber core, excessive force will be applied to the internal glass fiber without being able to be fully absorbed due to the deformation of the outer jacket of the optical fiber core. therefore undesirable. On the other hand, if the height E of the relief part 19 is too high relative to the diameter of the optical fiber, the difference between the center of the coating removal blade 17 and the center of the optical fiber on the heater 15 becomes large, and the outer coating This is undesirable because the resistance during removal becomes large.
また、ヒータ１５から被覆除去刃１７までの水平距離（図中Ｆ）は、０．３～１．０ｍｍであることが望ましい。ヒータ１５から被覆除去刃１７までの距離が短すぎると、被覆除去刃１７を外被に挿入した際の外被の逃げる空間が確保できず、また、光ファイバ心線の芯ずれ等を吸収することが困難となる。一方、ヒータ１５から被覆除去刃１７までの距離が長すぎると、ヒータ１５による外被の加熱効果が小さくなり、外被の除去抵抗が大きくなる。 Further, the horizontal distance (F in the figure) from the heater 15 to the coating removal blade 17 is preferably 0.3 to 1.0 mm. If the distance from the heater 15 to the sheath removal blade 17 is too short, it will not be possible to secure a space for the sheath to escape when the sheath removal blade 17 is inserted into the sheath, and it will also absorb misalignment of the optical fiber core. This becomes difficult. On the other hand, if the distance from the heater 15 to the coating removal blade 17 is too long, the effect of heating the outer coating by the heater 15 will be reduced, and the resistance to removing the outer coating will be increased.
ここで、本実施形態は、外被の除去に伴う光ファイバ心線の広がりを抑制することを目的としたものであり、光ファイバ心線の広がりの要因の一つとして、除去後の外被屑の堆積に着目したものである。したがって、逃げ部１９は、生じた外被屑を溜めることが可能なように、十分な空間が確保されるべきとする考え方がある。 Here, the purpose of this embodiment is to suppress the spread of the optical fiber core due to the removal of the outer sheath, and one of the factors for the spread of the optical fiber core is the expansion of the outer sheath after removal. The focus is on the accumulation of debris. Therefore, there is a concept that sufficient space should be ensured in the relief part 19 so that the generated jacket debris can be collected.
しかし、発明者らは、前述したように、逃げ部１９の高さが高すぎると、外被の除去抵抗が大きくなり、一方、逃げ部１９の長さ（ヒータ１５からの距離）を長くしすぎると、かえって、外被の除去抵抗が大きくなることを見出した。特に、このような外被の除去抵抗の増加は、作業性の悪化とともに、光ファイバ心線を強くしごきながら引き抜くため、かえって、光ファイバ心線の広がりの要因となることを知見した。また、発明者らは、逃げ部１９の容量（高さＥ×長さＦ×奥行（例えば光ファイバテープ心線等の全幅））は、除去される外被の全総体積よりも小さくてよいことに着目した。前述したように、弾性部材１３は容易に変形可能であるため、外被の除去の際に生じた除去後の外被屑は、初期段階では逃げ部１９の空間に堆積するが、逃げ部１９からあふれた外被屑は、弾性部材１３を変形させて、弾性部材１３側に逃げることができるためである。 However, as described above, the inventors discovered that if the height of the relief portion 19 is too high, the resistance to removing the outer cover becomes large; It has been found that if the temperature is too high, the resistance to removal of the outer covering becomes greater. In particular, it has been found that such an increase in the removal resistance of the outer sheath not only deteriorates the workability but also causes the optical fiber to spread while being pulled out while strongly squeezing the optical fiber. The inventors also found that the capacity of the relief portion 19 (height E x length F x depth (for example, the total width of the optical fiber tape, etc.)) may be smaller than the total volume of the outer sheath to be removed. I focused on this. As described above, since the elastic member 13 is easily deformable, the removed outer covering debris generated during removal of the outer covering accumulates in the space of the relief part 19 in the initial stage; This is because the overflowing jacket debris can deform the elastic member 13 and escape to the elastic member 13 side.
一方、逃げ部１９のサイズを小さくすることで、隣り合う光ファイバ心線の外被屑同士が干渉しやすくなるが、本実施形態では、被覆除去刃１７の前面側のガイド部２１によって、併設された光ファイバ心線の幅方向位置が規制されるため、光ファイバ心線の広がりを抑制することができる。 On the other hand, by reducing the size of the relief part 19, the sheath debris of adjacent optical fiber cores will easily interfere with each other, but in this embodiment, the guide part 21 on the front side of the sheath removal blade 17 allows Since the position in the width direction of the coated optical fiber is regulated, it is possible to suppress the spread of the coated optical fiber.
次に、光ファイバ被覆除去器１を用いた光ファイバ被覆除去方法及び、ガイド部の機能についてより詳細に説明する。図４（ａ）は、被覆除去刃１７を開いた状態を示す正面図であり、図４（ｂ）は、被覆除去刃１７を閉じた状態を示す正面図（図３（ａ）のＤ矢視図）である。なお、図４（ａ）、図４（ｂ）において、光ファイバ心線２３を点線で示す。 Next, the method for removing the optical fiber coating using the optical fiber coating remover 1 and the function of the guide section will be explained in more detail. FIG. 4(a) is a front view showing the sheath removal blade 17 in an open state, and FIG. 4(b) is a front view showing the sheath removal blade 17 in a closed state (see arrow D in FIG. 3(a)). (view). In addition, in FIG. 4(a) and FIG. 4(b), the optical fiber core wire 23 is shown by a dotted line.
まず、複数の光ファイバが併設された光ファイバテープ心線等を準備し、ホルダに光ファイバテープ心線を保持する。次に、可動部５のホルダ設置部１１（図１参照）に光ファイバテープ心線等が保持されたホルダをセットする。この状態で、ホルダを光ファイバ被覆除去器１のホルダ設置部１１へセットし、蓋部９を閉じて固定する。なお、前述したように、ホルダを用いずに、直接可動部に光ファイバテープ心線等を設置して、蓋部９によって保持してもよい。 First, an optical fiber tape coated wire having a plurality of optical fibers arranged side by side is prepared, and the optical fiber tape coated wire is held in a holder. Next, a holder holding an optical fiber tape or the like is set in the holder installation part 11 (see FIG. 1) of the movable part 5. In this state, the holder is set in the holder installation part 11 of the optical fiber coating remover 1, and the lid part 9 is closed and fixed. Note that, as described above, the optical fiber tape or the like may be directly installed on the movable part and held by the lid part 9 without using a holder.
次に、本体部３の蓋部７を閉じることで（図４（ａ）の矢印Ｇ）、ホルダの先端側に突出するそれぞれの光ファイバ心線２３の先端部を、挟持部（ヒータ１５と弾性部材１３）で挟み込むとともに、被覆除去刃１７で光ファイバ心線２３を挟み込むことができる。なお、被覆除去刃１７は、光ファイバ心線２３の外被に食い込み、内部のガラスファイバには接触しない。 Next, by closing the lid 7 of the main body 3 (arrow G in FIG. 4(a)), the tip of each optical fiber core 23 protruding toward the tip of the holder is connected to the clamping portion (heater 15). The optical fiber core 23 can be sandwiched between the elastic members 13) and the coating removal blades 17. Note that the sheath removal blade 17 bites into the outer sheath of the optical fiber core 23 and does not come into contact with the glass fiber inside.
この際、光ファイバテープ心線等の全幅（図４（ｂ）のＨであって、併設された光ファイバ心線２３の総幅）に対して、ガイド部２１の幅（図４（ｂ）のＩ）を所定の範囲とすることで、光ファイバ心線２３が広がることを、ガイド部２１によって規制することができる。なお、ガイド部２１の幅Ｉとしては、光ファイバテープ心線等の全幅Ｈに対して、１．１５Ｈ≦Ｉ≦１．２５Ｈの範囲であることが望ましい。例えば、ガイド部２１の幅Ｉは、３．０ｍｍ～４．５ｍｍであることが望ましい。 At this time, the width of the guide portion 21 (as shown in FIG. 4(b) is By setting I) within a predetermined range, the guide portion 21 can restrict the spread of the optical fiber core 23. Note that the width I of the guide portion 21 is desirably in the range of 1.15H≦I≦1.25H with respect to the total width H of the optical fiber tape cable. For example, it is desirable that the width I of the guide portion 21 is 3.0 mm to 4.5 mm.
次に、ヒータ部分の詳細について説明する。図５（ａ）は、ヒータ１５の近傍の斜視図であり、図５（ｂ）は、図５（ａ）のＪ－Ｊ線断面図である。ヒータ１５は、本体部３に形成された溝２７に配置される。ヒータ１５の幅方向の両側には、ヒータ１５を保持するための保持部材２９が固定される。 Next, details of the heater portion will be explained. 5(a) is a perspective view of the vicinity of the heater 15, and FIG. 5(b) is a sectional view taken along the line JJ in FIG. 5(a). The heater 15 is arranged in a groove 27 formed in the main body part 3. Holding members 29 for holding the heater 15 are fixed to both sides of the heater 15 in the width direction.
ここで、溝２７の深さは、ヒータ１５の厚みよりも深い。このため、保持部材２９は、ヒータ１５の幅方向の両側にそれぞれ張り出すように配置されるとともに、保持部材２９の端部が、溝２７に嵌まり込み、ヒータ１５の上面を押さえるように配置される。この際、保持部材２９の側面がガイド部２５となる。すなわち、被覆除去刃１７の背面側であって、ヒータ１５の幅方向端部近傍に、光ファイバテープ心線等の幅方向の位置を規制するガイド部２５が形成される。 Here, the depth of the groove 27 is deeper than the thickness of the heater 15. Therefore, the holding members 29 are arranged so as to protrude from both sides of the heater 15 in the width direction, and the ends of the holding members 29 are arranged so as to fit into the grooves 27 and press the upper surface of the heater 15. be done. At this time, the side surface of the holding member 29 becomes the guide portion 25. That is, on the back side of the coating removal blade 17 and near the widthwise end of the heater 15, a guide portion 25 is formed to regulate the widthwise position of the optical fiber ribbon or the like.
なお、ガイド部２５の幅Ｋは、被覆除去刃１７の前面側のガイド部２１の幅Ｉと略同様である。すなわち、ガイド部２５の幅Ｋは、光ファイバテープ心線等の全幅Ｈ＜Ｋ≦１．２Ｈの範囲であることが望ましい。例えば、ガイド部２５の幅Ｋは、３．０ｍｍ～４．５ｍｍであることが望ましい。 Note that the width K of the guide portion 25 is approximately the same as the width I of the guide portion 21 on the front side of the coating removal blade 17. That is, the width K of the guide portion 25 is preferably in the range of the total width H<K≦1.2H of the optical fiber ribbon. For example, it is desirable that the width K of the guide portion 25 is 3.0 mm to 4.5 mm.
この際、保持部材２９の先端が下方に屈曲し、本体部３の溝２７の縁部と噛み合うように配置されるため、ガイド部２５の幅を確実に維持することができる。例えば、本体部３へ保持部材２９をネジ等で固定する際に、ネジ穴の遊びによって、保持部材２９の固定位置がずれる恐れがあるが、保持部材２９を溝２７の縁部に係合させることで、確実に位置決めが可能となり、ガイド部２５の幅を維持することができる。 At this time, the tip of the holding member 29 is bent downward and is arranged so as to engage with the edge of the groove 27 of the main body part 3, so that the width of the guide part 25 can be maintained reliably. For example, when fixing the holding member 29 to the main body part 3 with screws or the like, there is a risk that the fixed position of the holding member 29 may shift due to play in the screw hole, but the holding member 29 may be engaged with the edge of the groove 27. This enables reliable positioning and maintains the width of the guide portion 25.
このようにガイド部２５で挟まれた空間において、ヒータ１５と弾性部材１３とで光ファイバ心線を挟み込んで保持する。この状態で、可動部５を本体部３から離していくことで、それぞれの光ファイバ心線２３の外被を除去することができる。この際、被覆除去刃１７の前面側及び背面側に、併設された光ファイバ心線２３の幅方向の位置を規制するガイド部２１、２５を形成することで、外被の除去の際に、光ファイバ心線２３が広がることを抑制することができる。 In this space between the guide portions 25, the optical fiber is held between the heater 15 and the elastic member 13. In this state, by moving the movable part 5 away from the main body part 3, the outer sheath of each optical fiber core 23 can be removed. At this time, by forming guide parts 21 and 25 on the front side and back side of the sheath removal blade 17 to regulate the position of the optical fiber core 23 in the width direction, when removing the sheath, It is possible to suppress the optical fiber core wire 23 from spreading.
なお、通常、光ファイバ心線２３の径が細い場合に、特に光ファイバ心線２３の幅が広がりやすい。このため、本実施形態は、光ファイバテープ心線等を構成するそれぞれの光ファイバ心線２３の外径が２２５μｍ以下の場合に、特に効果的である。 Note that normally, when the diameter of the optical fiber coated wire 23 is small, the width of the optical fiber coated wire 23 tends to increase in particular. Therefore, this embodiment is particularly effective when the outer diameter of each optical fiber core 23 constituting an optical fiber ribbon or the like is 225 μm or less.
また、光ファイバ心線２３の本数が多くなるほど、特に光ファイバ心線２３の幅が広がりやすい。このため、本実施形態は、光ファイバテープ心線等を構成するそれぞれの光ファイバ心線２３の本数が１２本以上の場合に、特に効果的である。 Moreover, as the number of optical fiber coated wires 23 increases, the width of the optical fiber coated wires 23 tends to increase in particular. For this reason, this embodiment is particularly effective when the number of each optical fiber core 23 constituting an optical fiber ribbon or the like is 12 or more.
また、光ファイバテープ心線等としては、長手方向に間欠的に接着され、隣り合う接着部同士が長手方向に千鳥配置された間欠接着型のリボン線の場合に、特に光ファイバ心線２３の幅が広がりやすい。このため、本実施形態は、間欠接着型リボン線の場合に、特に効果的である。 In addition, as the optical fiber tape coated wire, etc., in the case of an intermittent bonding type ribbon wire in which the ribbon wire is bonded intermittently in the longitudinal direction and adjacent bonded parts are arranged in a staggered manner in the longitudinal direction, especially the optical fiber coated wire 23 is used. Easy to widen. Therefore, this embodiment is particularly effective in the case of an intermittent adhesive ribbon wire.
以上、本実施形態によれば、被覆除去刃１７の前面側にガイド部２１を設け、背面側にガイド部２５を設けることで、外被の除去の際に、光ファイバ心線２３の広がりを抑制することができる。このため、外被の除去抵抗が小さく、作業が容易である。また、光ファイバ心線２３が広がらないため、その後の切断や融着作業を確実に行うことができる。 As described above, according to the present embodiment, by providing the guide portion 21 on the front side of the sheath removal blade 17 and the guide portion 25 on the back side, the spreading of the optical fiber core 23 is prevented when removing the sheath. Can be suppressed. Therefore, the resistance to removing the outer cover is low and the work is easy. Furthermore, since the optical fiber core 23 does not spread, subsequent cutting and fusing operations can be performed reliably.
なお、本実施形態では、被覆除去刃１７の前面側と背面側のそれぞれにガイド部２１、２５を形成したが、被覆除去刃１７の前面側又は背面側の少なくとも一方に、複数の光ファイバ心線２３の幅方向の位置を規制するガイド部を形成すればよい。被覆除去刃１７の前面側又は背面側の少なくとも一方で、光ファイバ心線２３の幅方向の位置を規制すれば、光ファイバ心線２３の広がりを抑制することができる。 In this embodiment, the guide portions 21 and 25 are formed on the front side and the back side of the sheath removal blade 17, respectively, but a plurality of optical fiber cores are formed on at least one of the front side and the back side of the sheath removal blade 17. A guide portion may be formed to restrict the position of the line 23 in the width direction. By regulating the position of the optical fiber coated wire 23 in the width direction on at least one of the front side and the back side of the coating removal blade 17, the spread of the optical fiber coated wire 23 can be suppressed.
また、被覆除去刃１７の背面側の逃げ部１９のサイズを所定以下とすることで、外被の除去抵抗が小さく、作業が容易となる。 Further, by setting the size of the relief portion 19 on the back side of the sheath removal blade 17 to be less than a predetermined size, the resistance for removing the sheath is small and the work becomes easy.
以上、添付図を参照しながら、本発明の実施の形態を説明したが、本発明の技術的範囲は、前述した実施の形態に左右されない。当業者であれば、特許請求の範囲に記載された技術的思想の範疇内において各種の変更例または修正例に想到し得ることは明らかであり、それらについても当然に本発明の技術的範囲に属するものと了解される。 Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the technical scope of the present invention is not limited to the embodiments described above. It is clear that those skilled in the art can come up with various changes and modifications within the scope of the technical idea stated in the claims, and these naturally fall within the technical scope of the present invention. It is understood that it belongs.
１………光ファイバ被覆除去器
３………本体部
４………スライドガイド
５………可動部
７、９………蓋部
１１………ホルダ設置部
１３………弾性部材
１５………ヒータ
１７………被覆除去刃
１９………逃げ部
２１、２５………ガイド部
２３………光ファイバ心線
２７………溝
２９………保持部材
１１１………光ファイバ心線
１１１ａ………ガラスファイバ
１１１ｂ………外被
１１３………弾性部材
１１５………ヒータ
１１７………被覆除去刃
1... Optical fiber sheath remover 3... Body part 4... Slide guide 5... Movable parts 7, 9... Lid part 11... Holder installation part 13... Elastic member 15... ... Heater 17 ... ... Coating removal blade 19 ... Relief parts 21 and 25 ... ... Guide section 23 ... Optical fiber core 27 ... Groove 29 ... Holding member 111 ... Optical fiber core Wire 111a...Glass fiber 111b...Sheath 113...Elastic member 115...Heater 117...Sheath removal blade
Claims (11)
前記複数の光ファイバ心線の外被を除去する本体部と、
前記本体部に対してスライド動作可能であり、前記複数の光ファイバ心線が保持される可動部と、
を具備し、
前記本体部の前記可動部側を前面側とし、その逆側を背面側とした際に、
前記本体部は、
前記複数の光ファイバ心線の外被を挟み込む一対の被覆除去刃と、
前記被覆除去刃の背面側において、前記複数の光ファイバ心線を軸方向にスライド可能に挟持する挟持部と、を有し、
前記被覆除去刃の前面側又は背面側の少なくとも一方に、前記複数の光ファイバ心線の幅方向の位置を規制するガイド部が形成され、
前記挟持部は、前記被覆除去刃の背面側に対向して配置されたヒータと、外被の除去の際に生じた除去後の外被屑によって変形可能な弾性部材により形成され、
前記被覆除去刃の背面に逃げ部が形成され、
前記逃げ部は、前記被覆除去刃と前記挟持部との間に、前記弾性部材に隣接するように形成される空間であって、一対の前記被覆除去刃同士の上下の間隔に対して、空間の高さが高くなる部位であることを特徴とする光ファイバ被覆除去器。 An optical fiber sheath remover that removes the sheath of a plurality of optical fibers at once,
a main body portion for removing the outer jacket of the plurality of coated optical fibers;
a movable part that is capable of sliding relative to the main body and holds the plurality of optical fibers;
Equipped with
When the movable part side of the main body is the front side and the opposite side is the back side,
The main body portion is
a pair of sheath removal blades that sandwich the sheaths of the plurality of coated optical fibers;
a holding part that holds the plurality of optical fiber cores so as to be slidable in the axial direction on the back side of the coating removal blade;
A guide portion is formed on at least one of the front side and the back side of the coating removal blade to regulate the positions of the plurality of optical fiber cores in the width direction,
The holding portion is formed by a heater disposed opposite to the back side of the sheath removal blade and an elastic member deformable by the removed sheath debris generated when removing the sheath ,
A relief part is formed on the back surface of the coating removal blade,
The relief part is a space formed between the coating removal blade and the holding part so as to be adjacent to the elastic member, and is a space with respect to the vertical distance between the pair of coating removal blades. An optical fiber sheath remover characterized in that the height of the optical fiber is increased.
前記複数の光ファイバ心線の外被を除去する本体部と、
前記本体部に対してスライド動作可能であり、前記複数の光ファイバ心線が保持される可動部と、
を具備し、
前記本体部の前記可動部側を前面側とし、その逆側を背面側とした際に、
前記本体部は、
前記複数の光ファイバ心線の外被を挟み込む一対の被覆除去刃と、
前記被覆除去刃の背面側において、前記複数の光ファイバ心線を軸方向にスライド可能に挟持する挟持部と、を有し、
前記被覆除去刃の前面側又は背面側の少なくとも一方に、前記複数の光ファイバ心線の幅方向の位置を規制するガイド部が形成され、
前記挟持部は、前記被覆除去刃の背面側に対向して配置されたヒータと弾性部材により形成され、
前記被覆除去刃の背面に逃げ部が形成され、
前記逃げ部は、前記被覆除去刃と前記挟持部との間に形成される空間であって、一対の前記被覆除去刃同士の上下の間隔に対して、空間の高さが高くなる部位であり、
前記逃げ部は上下面で囲まれた空間であり、前記逃げ部の下方の面高さと前記ヒータの面高さはほぼ一致することを特徴とする光ファイバ被覆除去器。 An optical fiber sheath remover that removes the sheath of a plurality of optical fibers at once,
a main body portion for removing the outer jacket of the plurality of coated optical fibers;
a movable part that is capable of sliding relative to the main body and holds the plurality of optical fibers;
Equipped with
When the movable part side of the main body is the front side and the opposite side is the back side,
The main body portion is
a pair of sheath removal blades that sandwich the sheaths of the plurality of coated optical fibers;
a holding part that holds the plurality of optical fiber cores so as to be slidable in the axial direction on the back side of the coating removal blade;
A guide portion is formed on at least one of the front side and the back side of the coating removal blade to regulate the positions of the plurality of optical fiber cores in the width direction,
The holding part is formed by a heater and an elastic member arranged opposite to the back side of the coating removal blade,
A relief part is formed on the back surface of the coating removal blade,
The relief part is a space formed between the coating removal blade and the holding part, and is a part where the height of the space is higher than the vertical distance between the pair of coating removal blades. ,
The optical fiber coating remover is characterized in that the relief portion is a space surrounded by upper and lower surfaces, and a lower surface height of the relief portion and a surface height of the heater substantially match.
前記複数の光ファイバ心線の外被を除去する本体部と、
前記本体部に対してスライド動作可能であり、前記複数の光ファイバ心線が保持される可動部と、
を具備し、
前記本体部の前記可動部側を前面側とし、その逆側を背面側とした際に、
前記本体部は、
前記複数の光ファイバ心線の外被を挟み込む一対の被覆除去刃と、
前記被覆除去刃の背面側において、前記複数の光ファイバ心線を軸方向にスライド可能に挟持する挟持部と、を有し、
前記被覆除去刃の前面側又は背面側の少なくとも一方に、前記複数の光ファイバ心線の幅方向の位置を規制するガイド部が形成され、
前記挟持部は、前記被覆除去刃の背面側に対向して配置されたヒータと弾性部材により形成され、
前記被覆除去刃の背面に逃げ部が形成され、
前記逃げ部は、前記被覆除去刃と前記挟持部との間に形成される空間であって、一対の前記被覆除去刃同士の上下の間隔に対して、空間の高さが高くなる部位であり、
前記逃げ部の空間の高さは、０．２０～０．２５ｍｍであることを特徴とする光ファイバ被覆除去器。 An optical fiber sheath remover that removes the sheath of a plurality of optical fibers at once,
a main body portion for removing the outer covering of the plurality of coated optical fibers;
a movable part that is capable of sliding relative to the main body and holds the plurality of optical fibers;
Equipped with
When the movable part side of the main body is the front side and the opposite side is the back side,
The main body portion is
a pair of sheath removal blades that sandwich the sheaths of the plurality of coated optical fibers;
a holding part that holds the plurality of optical fiber cores in a slidable manner in the axial direction on the back side of the coating removal blade;
A guide portion is formed on at least one of the front side and the back side of the coating removal blade to regulate the positions of the plurality of optical fiber cores in the width direction,
The holding part is formed by a heater and an elastic member arranged opposite to the back side of the coating removal blade,
A relief part is formed on the back surface of the coating removal blade,
The relief part is a space formed between the coating removal blade and the holding part, and is a part where the height of the space is higher than the vertical distance between the pair of coating removal blades. ,
An optical fiber coating remover, wherein the height of the space of the relief part is 0.20 to 0.25 mm.
外径が２２５μｍ以下の複数の光ファイバ心線を前記可動部に設置し、
前記複数の光ファイバ心線の先端部を、前記挟持部で挟み込むとともに、前記被覆除去刃で挟み込み、前記可動部を前記本体部から離していくことで、前記複数の光ファイバ心線の外被を除去することを特徴とする被覆除去器を用いた光ファイバ被覆除去方法。 An optical fiber sheath removal method using the optical fiber sheath removal device according to any one of claims 2 to 7,
A plurality of optical fiber cores having an outer diameter of 225 μm or less are installed in the movable part,
The outer sheaths of the plurality of coated optical fibers are removed by pinching the tips of the plurality of coated optical fibers between the clamping parts and between the sheath removal blades and separating the movable part from the main body. An optical fiber coating removal method using a coating remover, characterized in that:
前記複数の光ファイバ心線の外被を除去する本体部と、a main body portion for removing the outer jacket of the plurality of coated optical fibers;
前記本体部に対してスライド動作可能であり、前記複数の光ファイバ心線が保持される可動部と、a movable part that is capable of sliding relative to the main body and holds the plurality of optical fibers;
を具備し、Equipped with
前記本体部の前記可動部側を前面側とし、その逆側を背面側とした際に、When the movable part side of the main body is the front side and the opposite side is the back side,
前記本体部は、The main body portion is
前記複数の光ファイバ心線の外被を挟み込む一対の被覆除去刃と、a pair of sheath removal blades that sandwich the sheaths of the plurality of coated optical fibers;
前記被覆除去刃の背面側において、前記複数の光ファイバ心線を軸方向にスライド可能に挟持する挟持部と、を有し、a holding part that holds the plurality of optical fiber cores so as to be slidable in the axial direction on the back side of the coating removal blade;
前記被覆除去刃の前面側又は背面側の少なくとも一方に、前記複数の光ファイバ心線の幅方向の位置を規制するガイド部が形成され、A guide portion is formed on at least one of the front side and the back side of the coating removal blade to regulate the positions of the plurality of optical fiber cores in the width direction,
前記挟持部は、前記被覆除去刃の背面側に対向して配置されたヒータと弾性部材により形成され、The holding part is formed by a heater and an elastic member arranged opposite to the back side of the coating removal blade,
前記被覆除去刃の背面に逃げ部が形成され、A relief part is formed on the back surface of the coating removal blade,
前記逃げ部は、前記被覆除去刃と前記挟持部との間に形成される空間であって、一対の前記被覆除去刃同士の上下の間隔に対して、空間の高さが高くなる部位であることを特徴とする光ファイバ除去器を用いた光ファイバ被覆除去方法であって、The relief part is a space formed between the coating removal blade and the holding part, and is a part where the height of the space is higher than the vertical distance between the pair of coating removal blades. An optical fiber coating removal method using an optical fiber remover, characterized in that:
外径が２２５μｍ以下の複数の光ファイバ心線を前記可動部に設置し、A plurality of optical fiber cores having an outer diameter of 225 μm or less are installed in the movable part,
前記複数の光ファイバ心線の先端部を、前記挟持部で挟み込むとともに、前記被覆除去刃で挟み込み、前記可動部を前記本体部から離していくことで、前記複数の光ファイバ心線の外被を除去し、The outer sheaths of the plurality of coated optical fibers are removed by pinching the tips of the plurality of coated optical fibers between the clamping parts and between the sheath removal blades and separating the movable part from the main body. remove the
前記逃げ部の容量が、除去される外被の全総体積よりも小さいことを特徴とする光ファイバ被覆除去方法。A method for removing an optical fiber sheath, characterized in that the volume of the relief portion is smaller than the total volume of the sheath to be removed.
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|---|---|---|---|---|
| JP2001108836A (en) | 1999-10-12 | 2001-04-20 | Hitachi Cable Ltd | Coated optical fiber jacket remover |
| JP2003270450A (en) | 2002-03-15 | 2003-09-25 | Furukawa Electric Co Ltd:The | Optical fiber coating stripping blade member, optical fiber insertion guide member, optical fiber coating stripping device, and method for fitting position matching pin of the optical fiber coating stripping device |
| JP2018136359A (en) | 2017-02-20 | 2018-08-30 | 株式会社フジクラ | Coating removal blade, removal blade unit, and optical fiber coating removal device |
| WO2018225678A1 (en) | 2017-06-08 | 2018-12-13 | 住友電気工業株式会社 | Optical fiber covering removal method |
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| JPH05224026A (en) * | 1992-02-14 | 1993-09-03 | Furukawa Electric Co Ltd:The | Scalping device for coated optical fiber |
| NL9400678A (en) * | 1994-04-27 | 1995-12-01 | Nederland Ptt | Method and device for stripping optical fiber ribbons. |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001108836A (en) | 1999-10-12 | 2001-04-20 | Hitachi Cable Ltd | Coated optical fiber jacket remover |
| JP2003270450A (en) | 2002-03-15 | 2003-09-25 | Furukawa Electric Co Ltd:The | Optical fiber coating stripping blade member, optical fiber insertion guide member, optical fiber coating stripping device, and method for fitting position matching pin of the optical fiber coating stripping device |
| JP2018136359A (en) | 2017-02-20 | 2018-08-30 | 株式会社フジクラ | Coating removal blade, removal blade unit, and optical fiber coating removal device |
| WO2018225678A1 (en) | 2017-06-08 | 2018-12-13 | 住友電気工業株式会社 | Optical fiber covering removal method |
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