WO2018225678A1 - Procédé de retrait de revêtement de fibre optique - Google Patents

Procédé de retrait de revêtement de fibre optique Download PDF

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Publication number
WO2018225678A1
WO2018225678A1 PCT/JP2018/021352 JP2018021352W WO2018225678A1 WO 2018225678 A1 WO2018225678 A1 WO 2018225678A1 JP 2018021352 W JP2018021352 W JP 2018021352W WO 2018225678 A1 WO2018225678 A1 WO 2018225678A1
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WIPO (PCT)
Prior art keywords
optical fiber
coating layer
coating
core wire
cutting blades
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Application number
PCT/JP2018/021352
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English (en)
Japanese (ja)
Inventor
忍 玉置
寿久 横地
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住友電気工業株式会社
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Filing date
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Application filed by 住友電気工業株式会社 filed Critical 住友電気工業株式会社
Publication of WO2018225678A1 publication Critical patent/WO2018225678A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/245—Removing protective coverings of light guides before coupling

Definitions

  • the present invention relates to an optical fiber coating removal method.
  • an optical fiber sheath remover used in such applications, a heating portion that heats the coating portion of the optical fiber, a blade member that cuts the coating portion, and a fixing portion that holds the optical fiber near the heating portion And the covering portion is heated after holding the optical fiber in the vicinity of the heating portion, and the covering portion is removed after being cut into the covering portion (for example, Patent Documents 1 and 2). reference).
  • An optical fiber coating removing method includes: An optical fiber core wire whose periphery is covered with a first coating layer is held by an optical fiber fixing portion of a coating remover, and the first coating layer in the vicinity of the end portion of the optical fiber core wire is attached to the optical fiber. Heating is performed by a heating unit included in the coating removing unit provided so as to be able to come in contact with and away from the fixing unit, and the first coating layer is cut by the pair of cutting blades.
  • the glass fiber in the vicinity of the end part is pulled out from the first coating layer in the vicinity of the end part, Disposing an auxiliary medium different from the constituent resin of the first coating layer on the outer periphery of the first coating layer of the optical fiber core wire in a state separable from the first coating layer;
  • the auxiliary medium first contacts the pair of cutting blades before the pair of cutting blades reach the first coating layer at a position where the pair of cutting blades are engaged with each other.
  • the optical fiber coating removal method according to one aspect of the present invention, At least two optical fiber core wires whose glass fibers are covered with the first coating layer are arranged in parallel, and the multi-core tape core wire integrated with the second coating layer is held by the optical fiber fixing portion of the coating remover.
  • the first coating layer and the second coating layer in the vicinity of the end portion of the multicore tape core wire are heated by a heating unit provided in a coating removal unit provided so as to be able to contact and separate from the optical fiber fixing unit.
  • the optical fiber fixing portion is separated from the coating removal portion while being cut by a pair of cutting blades provided in the coating removal portion and the first coating layer and the second coating layer being cut by the pair of cutting blades.
  • an optical fiber coating removing method By pulling out the glass fiber in the vicinity of the end portion from the first coating layer and the second coating layer in the vicinity of the end portion, an optical fiber coating removing method, Disposing an auxiliary medium different from the constituent resin of the second coating layer on the outer periphery of the second coating layer of the multicore tape core wire in a state where it can be separated from the second coating layer;
  • the auxiliary medium first contacts the pair of cutting blades before the pair of cutting blades reach the second coating layer at a position where the pair of cutting blades are engaged with each other.
  • FIG. 3 is a perspective view of a state in which a cover is opened in a state where a shaft of the optical fiber coating remover in FIG. 2 is extended. It is a perspective view of the state which set the optical fiber core wire to the optical fiber coating removal machine of FIG. 2, and removed the coating. It is a schematic diagram of the coating remover main body with which the optical fiber coating remover of FIG. FIG.
  • FIG. 6 is a schematic view of a state in which an optical fiber pressing lid is closed in the sheath remover body shown in FIG. It is sectional drawing of the direction orthogonal to the longitudinal direction of the multi-core tape core wire which can be coat-removed with the optical fiber coating removal method which concerns on this embodiment.
  • the coating removal property is enhanced by heating the coating portion of the optical fiber by the heating portion to weaken the adhesion between the glass fiber and the coating portion.
  • the coating removal property of the optical fiber in the portion where the cutting is made by the blade member.
  • an object of the present invention is to provide an optical fiber coating removal method capable of improving the removal property of the coating layer of the optical fiber core wire or the multicore tape core wire and performing the coating removal work satisfactorily.
  • the removal performance of the coating layer of the optical fiber core wire or the multi-core tape core wire can be improved, and the coating removal operation can be performed satisfactorily.
  • An optical fiber coating removing method includes: (1) An optical fiber core wire whose glass fiber is covered with a first coating layer is held by an optical fiber fixing portion of a coating remover, and the first coating layer in the vicinity of the end of the optical fiber core wire is The first coating is heated by a pair of cutting blades provided in the coating removal unit and heated by a heating unit provided in the coating removal unit provided so as to be able to contact and separate from the optical fiber fixing unit.
  • the optical fiber fixing portion is separated from the coating removal portion while the layer is cut, whereby the glass fiber in the vicinity of the end portion is pulled out from the first coating layer in the vicinity of the end portion.
  • the auxiliary medium first contacts the pair of cutting blades before the pair of cutting blades reach the first coating layer at a position where the pair of cutting blades are engaged with each other.
  • the optical fiber coating removal method (2) At least two optical fiber core wires whose glass fiber is covered with the first coating layer are arranged in parallel, and the multi-core tape core wire integrated with the second coating layer is used as an optical fiber fixing portion of the coating remover.
  • the heating unit is provided with a coating removing unit that is provided so as to be capable of contacting and separating the first coating layer and the second coating layer in the vicinity of the end of the multicore tape core wire with respect to the optical fiber fixing unit.
  • the optical fiber fixing part is removed by coating while the first coating layer and the second coating layer are cut by the pair of cutting blades and heated by the pair of cutting blades provided in the coating removal unit.
  • the auxiliary medium first contacts the pair of cutting blades before the pair of cutting blades reach the second coating layer at a position where the pair of cutting blades are engaged with each other.
  • the outer diameter of the glass fiber may be less than 125 ⁇ m, and the outer diameter of the optical fiber core wire including the first coating layer may be less than 250 ⁇ m.
  • the adhesion between the glass fiber and the sheath is greater than that of general-purpose optical fiber core wires in order to improve the coating removal performance and prevent disconnection during coating removal. It needs to be weakened. Therefore, it is more preferable to remove the coating on the thin optical fiber core by the above-described optical fiber coating removal method.
  • the auxiliary medium may be made of a material that is not cut even when the first coating layer of the optical fiber core wire is cut by the pair of cutting blades. According to the above method, the coating removal property of the optical fiber core wire can be further enhanced.
  • the auxiliary medium may be made of a material that is not cut when the first cover layer and the second cover layer of the multi-core ribbon are cut by the pair of cutting blades. According to the above method, it is possible to further improve the coating removability of the multicore tape core wire.
  • the auxiliary medium may be made of a resin tape or a paper tape.
  • As the auxiliary medium it is particularly preferable to use the above materials.
  • An adhesive layer may be provided between the first covering layer and the auxiliary medium. According to the above method, the coating removal property of the optical fiber core wire can be further enhanced.
  • An adhesive layer may be provided between the second coating layer and the auxiliary medium. According to the above method, it is possible to further improve the coating removability of the multicore tape core wire.
  • FIG. 1 is a cross-sectional view of a single-core optical fiber core 1 that is coated by the optical fiber coating removal method of this example.
  • the optical fiber core wire 1 includes a glass fiber 2 composed of a core 2 a that propagates light and a cladding 2 b that confines the light, and a coating layer 3 composed of a resin material for protecting the periphery of the glass fiber 2. (An example of a first covering layer).
  • the coating layer 3 includes a primary resin layer 3a that covers the periphery of the clad 2b and a secondary resin layer 3b that covers the periphery of the primary resin layer 3a. Further, an ink layer 4 for identification may be added around the covering layer 3 (secondary resin layer 3b). When the ink layer 4 is added, the ink layer 4 is an example of the first covering layer.
  • the resin constituting the primary resin layer 3a and the secondary resin layer 3b for example, polyolefin resin, fluorine resin, urethane (meth) acrylate resin, or the like can be used.
  • the general optical fiber core 1 has, for example, a glass fiber diameter of about 125 ⁇ m and a coating outer diameter (the outer diameter of the optical fiber core 1) including the ink layer 4 of about 250 ⁇ m.
  • the optical fiber core wire 1 having a diameter smaller than a general outer diameter, for example, a glass fiber diameter of 80 to 125 ⁇ m, and the coating outer diameter including the ink layer 4 is used.
  • the optical fiber core wire 1 having an outer diameter of 150 to 250 ⁇ m (the outer diameter of the optical fiber core wire 1) can be suitably removed.
  • the optical fiber sheath remover 11 includes a sheath remover main body 12 and an optical fiber holder fixing portion (an example of an optical fiber fixing portion) 13 connected to one end of the sheath remover main body 12.
  • the optical fiber holder fixing portion 13 has two slide shafts 14 extending to the sheath remover main body 12 side. These slide shafts 14 are slidably inserted into the slide holes 15 of the sheath remover main body 12. Thereby, the optical fiber holder fixing
  • the direction in which the optical fiber holder fixing portion 13 is separated from the sheath remover main body 12, that is, the direction in which the optical fiber core wire 1 is pulled out is referred to as the front of the optical fiber sheath remover 11.
  • the holder holder lid 22 is provided at the top of the optical fiber holder fixing portion 13 so that it can be opened and closed.
  • a holder mounting portion 21 is formed on the upper surface of the portion exposed by opening the holder pressing lid 22.
  • An optical fiber holder 20 holding the optical fiber core wire 1 from above and below is placed on the holder mounting portion 21 (see FIG. 4).
  • the optical fiber holder 20 is mounted at a position slightly away from the vicinity of the end of the optical fiber core wire 1. Then, the optical fiber holder 20 is held by the optical fiber holder fixing portion 13 by closing the holder pressing lid 22 in a state where the optical fiber holder 20 is placed on the holder mounting portion 21. By adjusting the mounting position of the optical fiber holder 20 with respect to the optical fiber core wire 1, the length of the coating removal target portion of the optical fiber core wire 1, which is the portion where the coating layer 3 is desired to be removed, can be determined.
  • the sheath remover body 12 has a sheath removing portion 31 on one end side to which the optical fiber holder fixing portion 13 is connected.
  • An optical fiber pressing cover 32 is provided at the upper portion of the coating removing portion 31 so as to be freely opened and closed.
  • a plate-shaped optical fiber pressing medium 33 is provided at the center of the optical fiber pressing lid 32. The optical fiber holding medium 33 holds the optical fiber core wire 1 between the heater 42 described later.
  • a cutting blade 34A is attached to the upper front surface of the portion exposed by opening the optical fiber holding lid 32 in the coating removing section 31.
  • a cutting blade 34 ⁇ / b> B is attached to the front surface of the optical fiber holding lid 32.
  • the cutting blades 34A and 34B are provided at the central portions of the base bodies 34A1 and 34B1, respectively.
  • the cutting blade 34 ⁇ / b> A is attached to the coating removal unit 31 by fixing the base 34 ⁇ / b> A ⁇ b> 1 with a screw F to the upper front surface of the portion exposed by opening the optical fiber pressing lid 32 in the coating removal unit 31.
  • the cutting blade 34 ⁇ / b> B is attached to the coating removing unit 31 by fixing the base body 34 ⁇ / b> B ⁇ b> 1 to the front surface of the optical fiber holding lid 32 with a screw F.
  • These cutting blades 34A and 34B are for cutting the coating layer 3 and the ink layer 4 of the optical fiber core wire 1 disposed in the coating removing section 31. By closing the optical fiber holding lid 32 with respect to the coating removal portion 31, the cutting blades 34A and 34B are engaged with each other, and only the coating layer 3 (including the ink layer 4) of the optical fiber core wire 1 is cut. .
  • the coating removing unit 31 further has a heating unit 41 on the upper surface of the portion exposed by opening the optical fiber holding lid 32.
  • the heating unit 41 includes a plate heater 42 and a heater support member 43 on which the heater 42 is mounted.
  • the sheath removing unit 31 is provided with a heater energization switch (not shown) that is turned on and off by opening and closing the optical fiber holding lid 32. When the optical fiber holding lid 32 is closed, this heater energization switch is provided. Is turned on, and power is supplied to the heater 42.
  • the sheath remover main body 12 is provided with a power supply unit 75 on the other end side opposite to the connection side with the optical fiber holder fixing unit 13.
  • the power supply unit 75 can accommodate 4 to 8 1.2 to 1.5 volt batteries as internal power supplies.
  • a power cord 81 can be inserted into and removed from the power source 75, and power can be supplied from an external power source by inserting the power cord 81.
  • a lid 76 can be attached to and detached from the power supply unit 75, and a circuit board (not shown) for controlling the supply of current to the heater 42 is accommodated in the power supply unit 75.
  • the power supply unit 75 is provided with an operation unit 77 having various display LEDs such as a heater energization confirmation LED and a temperature display LED, and various switches such as a power switch and a temperature adjustment switch.
  • FIGS. 5 and 6 are schematic views of the optical fiber core wire 1 sandwiched by the coating removal unit 31 in a cross-sectional view in the longitudinal direction.
  • the optical fiber pressing medium 33, the cutting blades 34A and 34B, and the heater 42 in the coating removing unit 31 are illustrated, and the other constituent members of the coating removing unit 31 and the optical fiber holder fixing unit 13 are illustrated. Is omitted.
  • the optical fiber core wire 1 is sandwiched between the optical fiber pressing medium 33 and the heating surface 42 a of the heater 42 and heated by the heater 42.
  • the heater 42 is electrically connected to the circuit board of the power supply unit 75, and the heating temperature of the heater 42 is controlled by the circuit board.
  • the auxiliary medium 5 is pasted.
  • the auxiliary medium 5 is made of a material that is different from the constituent resin of the covering layer 3 (in this example, the ink layer 4), and is easily deformed and hardly cut.
  • the auxiliary medium 5 can be composed of, for example, a resin tape, a paper tape, rubber, metal, or the like. Of these materials, the auxiliary medium 5 is preferably made of a resin tape or a paper tape.
  • An adhesive layer 6 made of an adhesive or the like is provided between the covering layer 3 including the ink layer 4 and the auxiliary medium 5.
  • the outer peripheral surface of the ink layer 4 and the inner peripheral surface of the auxiliary medium 5 are in close contact with the adhesive layer 6.
  • the auxiliary medium 5 is preferably a mending tape, a masking tape, or the like.
  • the auxiliary medium 5 is affixed in a state where it can be easily separated from the coating layer 3 including the ink layer 4, that is, in a state where it can be easily removed from the coating layer 3 including the ink layer 4 without stickiness.
  • the auxiliary medium 5 is attached to the outer periphery of the coating layer 3 including the ink layer 4 by, for example, single winding.
  • the auxiliary medium 5 has a thickness of 50 to 200 ⁇ m, preferably 100 to 200 ⁇ m.
  • the auxiliary medium 5 may be attached to a certain range including at least a portion of the optical fiber core wire 1 from which the coating layer 3 is removed, for example, an end portion of the optical fiber core wire 1.
  • the auxiliary medium 5 should just be affixed at least when the coating layer 3 is removed (a manufacturing process for removing the coating layer 3). After the coating layer 3 is removed, the auxiliary medium 5 remains on the coating removal unit 31 side together with the removed coating layer 3.
  • an operator attaches (adheres) an auxiliary medium 5 made of, for example, a resin tape to a portion of the optical fiber core 1 where the coating layer 3 is to be removed (a certain range including the end of the optical fiber core 1). .
  • the operator slides the optical fiber holder fixing part 13 of the optical fiber sheath remover 11 in the direction of the sheath remover main body 12 and brings the holder pressing lid 22 and the optical fiber close to the sheath remover main body 12. Open the holding lid 32.
  • the operator sets the optical fiber holder 20 to which the optical fiber core wire 1 is attached to the holder mounting portion 21 of the optical fiber holder fixing portion 13.
  • the tip portion (the portion to be removed from which the coating layer 3 is to be removed) disposed behind the optical fiber holder 20 is heated by the heater 42. It is mounted on the surface 42a.
  • the operator closes the holder pressing lid 22 of the optical fiber holder fixing portion 13 and closes the optical fiber pressing lid 32 of the sheath remover main body 12.
  • the pair of cutting blades 34 ⁇ / b> A and 34 ⁇ / b> B come close to each other and the resin tape 5 and the optical fiber core 1 attached to the optical fiber core 1.
  • the coating layer 3 (including the ink layer 4) is cut.
  • the cutting blades 34 ⁇ / b> A and 34 ⁇ / b> B first come into contact with the resin tape 5 attached to the outer periphery of the coating layer 3 before reaching the coating layer 3 of the optical fiber core wire 1.
  • optical fiber core 1 of this example for example, a glass fiber having an outer diameter of 125 ⁇ m, an optical fiber core 1 having an outer diameter of 200 ⁇ m, and an auxiliary medium 5 having a thickness of 100 ⁇ m is used. Further, the distance between the pair of cutting blades 34A and 34B approached by closing the optical fiber holding lid 32 is 140 to 150 ⁇ m.
  • the auxiliary medium 5 is made of the resin tape that is easily deformed and difficult to cut as described above, the auxiliary medium 5 is deformed but not cut even when the cutting blades 34A and 34B are cut. For this reason, only the coating layer 3 of the optical fiber core wire 1 disposed inside the auxiliary medium 5 is cut by the cutting blades 34A and 34B.
  • the heater energization switch is turned on, and the heater 42 is energized.
  • the set heating temperature of the heater 42 is 140 ° C., for example, the center temperature of the heating surface 42 a of the heater 42 is raised to about 140 ° C. For this reason, the coating layer 3 of the coating removal target portion of the optical fiber core wire 1 placed on the heating surface 42a of the heater 42 is heated at high speed by the heater 42 and softens.
  • the operator confirms that the coating layer 3 of the optical fiber core wire 1 has reached the optimum coating removal temperature (for example, 140 ° C.) using the display LED of the operation unit 77. After confirming the optimum temperature, the operator grips the sheath remover main body 12 and the optical fiber holder fixing portion 13 respectively, and separates the optical fiber holder fixing portion 13 from the sheath remover main body 12 (arrow A in FIG. 6). Slide in the direction of.
  • the optimum coating removal temperature for example, 140 ° C.
  • the glass fiber 2 in the vicinity of the end portion of the optical fiber core wire 1 is pulled out of the coating layer 3 and is heated and softened by being heated at the tip side of the cutting portion by the pair of cutting blades 34A and 34B. Only is removed.
  • the resin tape 5 attached to the outer periphery of the optical fiber core wire 1 is in a state where a part thereof is still attached to the coating layer 3 that is a portion to be removed of the optical fiber core wire 1, while the other In a state where a part is peeled off from the coating layer 3 that is not the part to be removed, it is removed together with the coating layer 3 of the part to be removed and remains on the side of the coating remover main body 12.
  • the auxiliary medium 5 made of, for example, a resin tape is disposed on the outer periphery of the coating layer 3 including the ink layer 4, and the cutting blade 34A, 34B is engaged with the cutting blade 34A, 34B. Since the auxiliary medium 5 comes into contact with the cutting blades 34A and 34B before 34A and 34B reach the coating layer 3 of the optical fiber core wire 1, when the cutting blades 34A and 34B are cut, the auxiliary medium 5 5 is not cut
  • the auxiliary medium 5 on the outer periphery of the coating layer 3 including the ink layer 4, the depth at which the cutting blades 34A and 34B can cut as compared with the case where the auxiliary medium 5 is not arranged.
  • the depth can be deepened.
  • the coating layer 3 is removed by the cutting blades 34A and 34B when the glass fiber 2 is pulled out from the coating layer 3.
  • the force to hold down can be increased.
  • the removability of the coating layer 3 of the optical fiber core wire 1 can be improved, and the coating removal operation can be performed satisfactorily.
  • this method does not require modification of the coating remover itself, an existing coating remover can be used.
  • the auxiliary medium 5 is pasted in a state where it can be easily separated from the coating layer 3. For this reason, when the coating layer 3 of the optical fiber core wire 1 is removed by sliding the optical fiber holder fixing portion 13, the auxiliary medium 5 attached to the coating layer 3 that is not the portion to be removed is removed from the coating layer 3. 3 can be easily peeled off and separated. Therefore, the removability of the coating layer 3 of the optical fiber core wire 1 can be improved, and the coating removal operation can be performed more satisfactorily.
  • the optical fiber coating removal method not only the existing optical fiber core wire 1 having an outer diameter, but particularly a smaller diameter than the existing one (for example, the outer diameter of the glass fiber 2 is less than 125 ⁇ m). This is suitable for removing the coating layer 3 of the optical fiber core wire 1 having an outer diameter of the coating layer 3 including the ink layer 4 of less than 250 ⁇ m.
  • coating removal compared to general-purpose optical fiber cores is required to improve coating removal and prevent disconnection during coating removal. It is necessary to remove the coating after weakening the adhesion between the glass fiber 2 and the coating layer 3 at the time. Therefore, it is more preferable to perform the coating removal operation on the thin optical fiber core wire 1 using the optical fiber coating removal method as described above.
  • Example 2 A conventional optical fiber coating removal method (hereinafter referred to as Example 1) in which the auxiliary medium is not attached to the outer periphery of the optical fiber core, and the light according to the embodiment in which the auxiliary medium 5 is attached to the outer periphery of the optical fiber core 1.
  • the fiber coating removal method hereinafter referred to as Example 2
  • the coating removal of the optical fiber core wire was performed, and the success rates were compared.
  • Successful removal of the coating means that only the coating layer 3 can be removed without damaging the glass fiber 2, and no residue of the coating layer 3 is generated around the glass fiber 2 in the vicinity of the cutting position by the cutting blades 34A and 34B. It was decided.
  • a thin optical fiber core wire having an outer diameter of 125 ⁇ m and an optical fiber core wire of 200 ⁇ m was used as an optical fiber core wire to be covered.
  • the thickness of the auxiliary medium 5 was 100 ⁇ m.
  • Example 1 and Example 2 when the coating removal of 100 optical fiber core wires was performed, in the coating removal method of Example 1 in which the auxiliary medium was not attached to the outer periphery of the optical fiber core wire, the number of successful cases was 0, That is, the success rate was 0%. On the other hand, in the coating removal method of Example 2 in which the auxiliary medium 5 is attached to the outer periphery of the fiber core wire 1, the number of successes was 100, and it was confirmed that the success rate could be improved to 100%.
  • the optical fiber coating removal method can be applied to a plurality of optical fiber cores 7 arranged in parallel and integrated as shown in FIG. 7 (hereinafter referred to as multi-core tape core wire 7). It is.
  • the multi-core tape core wire 7 is formed by arranging a plurality of optical fiber core wires 1 in parallel and integrating them with a coating layer 8 (an example of a second coating layer).
  • the cutting blades 34 ⁇ / b> A and 34 ⁇ / b> B are obtained by performing the coating removing process after the auxiliary medium 5 is attached to the outer periphery of the coating layer 8 when removing the coating layer 3 and the coating layer 8.
  • the removability of the coating layer 3 and the coating layer 8 can be improved, and the coating removal operation can be performed satisfactorily.
  • Optical fiber core wire 2 Glass fiber 2a: Core 2b: Clad 3: Coating layer (first coating layer) 3a: Primary resin layer 3b: Secondary resin layer 4: Ink layer 5: Auxiliary medium 6: Adhesive layer 7: Multi-core tape core wire 8: Coating layer (second coating layer) 11: Optical fiber sheath remover 12: Cover remover body 13: Optical fiber holder fixing portion (optical fiber fixing portion) 20: Optical fiber holder 21: Holder mounting part 22: Holder pressing lid 31: Cover removal part 33: Optical fiber pressing medium 34A, 34B: Cutting blade 41: Heating part 42: Heater 42a: Heating surface 43: Heater support member

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

La présente invention concerne un procédé de retrait de revêtement de fibre optique, selon lequel un cœur de fibre optique dans lequel la circonférence d'une fibre de verre est recouverte d'une couche de revêtement, est maintenu dans une partie de fixation de fibre optique et la couche de revêtement au voisinage d'une extrémité du cœur de fibre optique est chauffée par une partie chauffée puis découpée à l'aide de lames de coupe et la fibre de verre est retirée de la couche de revêtement par séparation de la partie de fixation de fibre optique d'un corps d'instrument de retrait de revêtement tandis que la couche de revêtement est dans un état coupé. Le procédé de retrait de revêtement de fibre optique comprend : une étape de disposition d'un milieu auxiliaire, qui est différent d'une résine constitutive de la couche de revêtement du cœur de fibre optique, sur la circonférence externe de la couche de revêtement de manière à pouvoir être séparée de la couche de revêtement ; et une étape pour mettre le milieu auxiliaire en contact avec les lames de coupe dans une position où les lames de coupe s'engrènent les unes avec les autres, avant que les lames de coupe n'atteignent la couche de revêtement.
PCT/JP2018/021352 2017-06-08 2018-06-04 Procédé de retrait de revêtement de fibre optique WO2018225678A1 (fr)

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JP2021056275A (ja) * 2019-09-27 2021-04-08 古河電気工業株式会社 光ファイバ被覆除去器及び光ファイバ被覆除去方法

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JP2014211608A (ja) * 2013-04-01 2014-11-13 株式会社フジクラ 光ファイバカッタ
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JPH04254805A (ja) * 1991-02-06 1992-09-10 Fujikura Ltd 光ファイバテープ心線の端末被覆除去方法
JPH0694925A (ja) * 1992-09-17 1994-04-08 Furukawa Electric Co Ltd:The 光ファイバ心線の被覆除去方法
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JP2021056275A (ja) * 2019-09-27 2021-04-08 古河電気工業株式会社 光ファイバ被覆除去器及び光ファイバ被覆除去方法
JP7407549B2 (ja) 2019-09-27 2024-01-04 古河電気工業株式会社 光ファイバ被覆除去器及び光ファイバ被覆除去方法

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