WO2020129293A1 - Attachment, cable anchoring unit, and cable anchoring method - Google Patents

Attachment, cable anchoring unit, and cable anchoring method Download PDF

Info

Publication number
WO2020129293A1
WO2020129293A1 PCT/JP2019/029182 JP2019029182W WO2020129293A1 WO 2020129293 A1 WO2020129293 A1 WO 2020129293A1 JP 2019029182 W JP2019029182 W JP 2019029182W WO 2020129293 A1 WO2020129293 A1 WO 2020129293A1
Authority
WO
WIPO (PCT)
Prior art keywords
cable
optical cable
attachment
band
tension member
Prior art date
Application number
PCT/JP2019/029182
Other languages
French (fr)
Japanese (ja)
Inventor
力丸 武田
百津　仁博
Original Assignee
株式会社フジクラ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社フジクラ filed Critical 株式会社フジクラ
Publication of WO2020129293A1 publication Critical patent/WO2020129293A1/en

Links

Images

Classifications

    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • 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
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables

Definitions

  • the present invention relates to an attachment, a cable fixing unit, and a cable fixing method.
  • Patent Document 1 describes a cable gripping member that fixes an optical cable by gripping a tension member of a slot type optical cable.
  • Patent Document 2 describes a cable gripping member that fixes an optical cable by gripping a tension member of a center tube type optical cable.
  • JP 2008-32971 A Japanese Patent No. 6397944
  • a steel wire is used for a tension member in a conventional optical cable, and the cable gripping members described in Patent Documents 1 and 2 grip the tension member by tightening the tension member of the optical cable with a screw, thereby fixing the optical cable.
  • a non-metallic material for example, fiber reinforced plastic
  • the tension member may be damaged.
  • the tension member cannot be tightened with the screw, and as a result, the optical cable cannot be fixed to the cable holding member.
  • the present invention aims to fix the optical cable to the cable gripping member without damaging the tension member.
  • a main invention for achieving the above object is an attachment for fixing a non-metallic optical cable to a cable gripping member provided with a tension member gripping portion for gripping a metal tension member, and an attachment to an end portion of the optical cable. It has a band to be fastened, a fastener for fastening the band, and a rod-shaped member fixed to the fastener, extending in the longitudinal direction of the optical cable, and capable of being held by the tension member holding portion. Attachment.
  • the optical cable can be fixed to the cable holding member without damaging the tension member.
  • FIG. 1A is an explanatory diagram of the optical cable 1 to which the attachment 40 of the first embodiment is attached.
  • FIG. 1B is an explanatory diagram showing how the optical cable 1 is fixed by the cable fixing unit 100 of the first embodiment.
  • FIG. 2 is a sectional view of the optical cable 1.
  • 3A and 3B are perspective views of the attachment 40.
  • FIG. 4 is a six-sided view of the attachment 40.
  • 5A and 5B are perspective views of the attachment 40 with the fastening band 41 removed.
  • FIG. 6 is a six-sided view of the attachment 40 with the fastening band 41 removed.
  • FIG. 7 is a flow chart of a fixing operation for fixing the optical cable 1 to the cable fixing unit 100.
  • 8A and 8B are perspective views of the attachment 40 of the second embodiment.
  • FIG. 9A is an explanatory diagram of internal wiring of the termination box 10.
  • FIG. 9B is an explanatory diagram of the cable fixing portion 17 of the termination box 10.
  • FIG. 10A is a perspective view of the cable gripping member 20.
  • FIG. 10B is an explanatory diagram showing how the optical cable 1 is held by the cable holding member 20.
  • the band is preferably a hose band. This allows the attachment to be fixed to optical cables of various diameters.
  • the fastener has a plurality of claws on its inner surface that comes into contact with the optical cable, and that engages with the jacket of the optical cable. As a result, the attachment can be firmly fixed to the optical cable.
  • the fastener has a U-shaped member formed by an upper plate portion arranged on the optical cable side and a lower plate portion bent from the upper plate portion to the side opposite to the optical cable side. Then it is preferable that a part of the band is arranged in a gap between the upper plate portion and the lower plate portion. Accordingly, the band can be fastened to the fastener with a simple structure.
  • the fixed end of the rod-shaped member prevents the band from falling out of the gap. This makes it possible to prevent the band from falling off with a simple structure.
  • the distance between the fixed end of the rod-shaped member and the end of the lower plate portion in the longitudinal direction is preferably shorter than the width of the band. As a result, it is possible to prevent the band from coming off from the gap.
  • the rod-shaped member has a bent portion, and when viewed in the longitudinal direction, an end portion of the rod-shaped member on the side to be gripped by the tension member gripping portion is arranged inside the annular band. desirable. This facilitates the tension member gripping portion 22 to grip the rod-shaped member.
  • a cable gripping member having a tension member gripping portion for gripping a metal tension member, and an attachment, wherein the attachment is a band to be fastened to an end of an optical cable, a fastener for fastening the band, and the fastener. And a rod-shaped member that is fixed to the optical fiber, extends in the longitudinal direction of the optical cable, and can be gripped by the tension member gripping portion. According to such a cable fixing unit, the optical cable can be fixed to the cable holding member without damaging the tension member.
  • a cable gripping member having a tension member gripping part for gripping a metal tension member, and preparing an attachment including a band, a fastener for fastening the band, and a rod-shaped member fixed to the fastener.
  • FIG. 9A is an explanatory diagram of internal wiring of the termination box 10.
  • the cable gripping member 20 can be used not only for the termination box 10 but also for other external devices such as a closure.
  • the optical termination box 10 has an optical splitter module 11, an extra length storage portion 13, a termination tray 15, and a cable fixing portion 17.
  • the optical splitter module 11 is a module having many optical adapters 11A.
  • the extra length storage unit 13 is a member (tray) that stores the extra length of the optical fiber 3 (including the optical cord).
  • the termination tray 15 is, for example, a fusion portion storage tray that accommodates the fusion portion.
  • the optical fiber 3 output from the optical cable 1 and the other end of the optical fiber 3′ having the optical connector 3A′ (connected to the optical adapter 11A) attached to one end are fused, and the fusion The attachment portion is stored in the termination tray 15.
  • the configuration of the optical termination box 10 is not limited to this configuration.
  • FIG. 9B is an explanatory diagram of the cable fixing portion 17 of the termination box 10.
  • the cable gripping member 20 can be fixed to the cable fixing portion 17.
  • the cable holding member 20 holding the end portion of the optical cable 1 is detachably attached to the cable fixing portion 17.
  • FIG. 10A is a perspective view of the cable grip member 20.
  • FIG. 10B is an explanatory diagram showing how the optical cable 1 is held by the cable holding member 20.
  • the optical cable 1 shown in FIG. 10B is a metallic type optical cable having a metal tension member 6'.
  • the optical cable 1 shown in FIG. 10B is a slot type optical cable, and a steel wire tension member 6'is arranged at the center of the slot rod 9'.
  • each direction is defined as shown in FIG. 10B.
  • the longitudinal direction of the optical cable 1 is defined as “front-back direction”
  • the end side of the optical cable 1 is defined as “front”
  • the opposite side is defined as “rear”.
  • the direction perpendicular to the cable mounting surface of the cable gripping member 20 is defined as “up-down direction”
  • the side of the optical cable 1 viewed from the cable gripping member 20 is defined as “upper”
  • the opposite side is defined as “lower”.
  • the direction perpendicular to the front-back direction and the vertical direction is the left-right direction (or the width direction), the right side when viewing the front from the back is “right”, and the opposite side is "left”.
  • the cable gripping member 20 is a member that fixes the end portion of the optical cable 1 by gripping the tension member 6 ′ of the optical cable 1.
  • the cable gripping member 20 has a main body portion 21, a tension member gripping portion 22, a fixing portion 23, and a binding portion 24.
  • the main body 21 is a metal plate-shaped member that constitutes the main body of the cable gripping member 20.
  • the upper surface of the plate-shaped main body 21 serves as a cable mounting surface on which the optical cable 1 is mounted.
  • a tension member grip portion 22 is provided on the upper surface of the main body portion 21.
  • a fixing portion 23 is provided on the side surface (or the lower surface) of the main body portion 21.
  • a bundling portion 24 is provided at the center of the main body portion 21.
  • the tension member grip portion 22 is a portion for gripping the tension member 6'.
  • the tension member grip portion 22 has a grip block 221 and a screw 222.
  • the grip block 221 is a block-shaped (columnar) portion fixed to the upper surface of the main body 21 and has a through hole 221A.
  • the through hole 221A is a hole that penetrates in the front-rear direction, and is a hole through which the tension member 6'is inserted.
  • a screw hole is formed in the grip block 221 in the vertical direction, and a screw 222 is attached to the screw hole.
  • the fixing portion 23 is a portion for fixing the cable gripping member 20 to an external member.
  • the fixing portion 23 is fixed to the cable fixing portion 17 (see FIG. 9B) of the optical termination box 10.
  • the external member to which the cable gripping member 20 is fixed is not limited to the optical termination box 10, and may be, for example, a closure.
  • the binding portion 24 is a portion for fixing (binding) the optical cable 1 to the main body portion 21 with the binding band 30.
  • a window is formed in the center of the main body portion 21, and a binding portion 24 that extends in a tongue shape from the edge of the window toward the inside of the window is formed.
  • the binding portion 24 is not limited to such a tongue-shaped portion.
  • the binding portion 24 is provided on the rear side of the window. In other words, the binding portion 24 is provided on the side opposite to the tension member grip portion 22 when viewed from the window (or the center of the main body portion 21).
  • the distance between the tension member gripping portion 22 and the binding portion 24 in the front-rear direction becomes long, so that the optical member 1 is fixed to the binding portion 24 by the binding band 30 while holding the tension member 6 ′ by the tension member gripping portion 22. By doing so, the optical cable 1 can be firmly fixed to the cable gripping member 20.
  • the tension member 6′ of the optical cable 1 shown in FIG. 10B is a steel wire, and the cable gripping member 20 fixes the optical cable 1 by tightening the tension member 6′ with a screw 222.
  • a non-metallic material for example, fiber reinforced plastic
  • the tension member 6' may be damaged if the tension member 6 ′ is tightened with the screw 222. Therefore, the tension member 6'cannot be tightened with the screw 222, and as a result, the optical cable 1 cannot be fixed to the cable grip member 20. Therefore, in this embodiment, when fixing the optical cable 1 to the cable gripping member 20, the attachment 40 described below is used.
  • FIG. 1A is an explanatory diagram of the optical cable 1 to which the attachment 40 of the first embodiment is attached.
  • FIG. 1B is an explanatory diagram showing how the optical cable 1 is fixed by the cable fixing unit 100 of the first embodiment.
  • FIG. 2 is a sectional view of the optical cable 1.
  • each direction is defined as shown in FIG. 1A.
  • the longitudinal direction of the optical cable 1 is defined as “front-back direction”
  • the end side of the optical cable 1 is defined as “front”
  • the opposite side is defined as “rear”.
  • the direction parallel to the central axis of the annular band of the fastening band 41 is defined as “front-back direction”
  • the side where the rod-shaped member 46 extends from the fastener 42 is defined as “front”
  • the opposite side is defined as “rear”. ..
  • the direction perpendicular to the cable mounting surface of the fastener 42 of the attachment 40 is defined as “up-down direction”, the side of the optical cable 1 viewed from the fastener 42 is defined as “up”, and the opposite side is defined as “down”.
  • the direction perpendicular to the front-back direction and the vertical direction is the left-right direction (or the width direction), the right side when viewing the front from the back is “right”, and the opposite side is "left”.
  • the vertical direction of the attachment 40 matches the vertical direction of the cable gripping member 20 (see FIG. 10B), but they may not match.
  • the optical cable 1 has a plurality of optical fiber units 2, a jacket 5, and a tension member 6.
  • the optical fiber unit 2 is a member in which a plurality of optical fibers 3 are bundled by a bundle material 4.
  • the plurality of optical fibers 3 are configured by intermittently connecting type optical fiber tapes (optical fiber ribbons).
  • the optical fiber unit 2 may be configured by bundling a plurality of single-core optical fibers 3 with the bundle material 4.
  • the jacket 5 is a member that accommodates the plurality of optical fiber units 2 therein.
  • a tension member 6 (and a tear string 7) is embedded in the outer cover 5.
  • the tension member 6 is made of a non-metallic material (non-metallic material). Specifically, the tension member 6 is made of fiber reinforced plastic. By forming the tension member 6 with a non-metallic material, the optical cable 1 is formed without using metal. That is, the optical cable 1 of the present embodiment is a non-metallic optical cable (non-metallic cable). Here, a plurality of optical fiber units 2 are housed in a housing space at the center of the jacket 5, and a pair of tension members 6 are embedded in the jacket 5 so as to sandwich the housing space.
  • the optical cable 1 of the present embodiment is a center tube type optical cable, it may be a slot type optical cable as long as it is a non-metallic type optical cable.
  • the cable fixing unit 100 is a member that fixes the end of the optical cable 1.
  • the cable fixing unit 100 has the above-described cable gripping member 20 and the attachment 40.
  • FIG. 4 is a six-sided view of the attachment 40.
  • 5A and 5B are perspective views of the attachment 40 with the fastening band 41 removed.
  • FIG. 6 is a six-sided view of the attachment 40 with the fastening band 41 removed.
  • the attachment 40 is a member for fixing the non-metallic optical cable 1 to the cable holding member 20 having the tension member holding portion 22 for holding the metal tension member 6'.
  • the attachment 40 is attached to the optical cable 1, and then the optical cable 1 with the attachment 40 is fixed to the cable gripping member 20. That is, in the present embodiment, the optical cable 1 is fixed to the cable gripping member 20 with the attachment 40 interposed.
  • the attachment 40 has a fastening band 41, a fastener 42, and a rod-shaped member 46.
  • the fastening band 41 is a band that is fastened to the end of the optical cable 1.
  • the fastening band 41 is fastened to the end portion of the optical cable 1 by tightening the annular band (which is formed by winding a band-shaped band in an annular shape), and the attachment 40 is fixed to the optical cable 1.
  • a hose band is used as the fastening band 41.
  • the attachment 40 can be fixed to the optical cables 1 having various diameters by using the hose band.
  • a metal screw type hose band is adopted, and the fastening band 41 can be firmly fastened to the optical cable 1 by tightening the screw with a tool.
  • the fastening band 41 is not limited to the metal screw type hose band, and other types of bands may be used as long as they can be fastened to the end portion of the optical cable 1.
  • the fastener 42 is a member for fastening the fastening band 41.
  • the fastener 42 is sometimes called a buckle.
  • the base portion 43 and the claw member 44 are included.
  • the base portion 43 is a member that forms the main body of the fastener 42.
  • the U-shaped sheet metal is used.
  • the base portion 43 can be configured in other shapes.
  • the base portion 43 of the present embodiment is composed of a U-shaped member formed by an upper plate portion 431 and a lower plate portion 432.
  • the upper plate portion 431 is a plate-shaped portion arranged on the optical cable 1 side.
  • the lower plate portion 432 is a plate-shaped portion that is bent from the upper plate portion 431 to the side opposite to the optical cable 1 side.
  • a bent portion 433 is formed between the upper plate portion 431 and the lower plate portion 432.
  • the bent portion 433 is a portion where the sheet metal is bent so that the bent line extends along the width direction.
  • the upper plate portion 431 and the lower plate portion 432 are connected by the bent portion 433.
  • a gap 434 is formed between the upper plate 431 and the lower plate 432.
  • a part (lower part) of the fastening band 41 is arranged in this gap 434.
  • the upper plate portion 431 (and the claw member 44) is arranged inside the fastening band 41, and when the fastening band 41 is tightened, the band diameter shrinks so that the inner surface of the fastening band 41 faces the upper plate portion 431.
  • the optical cable 1 is fastened in the space surrounded by the fastening band 41 and the fastener 42.
  • the fastening band 41 is fastened with the fastener 42 with a simple configuration.
  • the shape of the fastener 42 can be simplified compared to the second embodiment described later).
  • the annular band of the screw type hose band (fastening band 41) is arranged in the gap 434 between the upper plate portion 431 and the lower plate portion 432, and the annular band is slid against the gap 434.
  • the screw direction of the threaded hose band (fastening band 41) can be changed.
  • FIG. 3A although the screw head of the fastening band 41 faces the left side, the screw head is slid by rotating the annular band with respect to the gap 434 (rotating the annular band). It is possible to turn it to the upper side.
  • the fastening band 41 fastened to the fastener 42 slidable, the work of fastening the optical cable 1 to the fastening band 41 becomes easy.
  • the claw member 44 is a member (demon eye member) having a plurality of claw portions 44A (demon eyes) that bite into the jacket 5 of the optical cable 1. By making the claw portion 44A bite into the jacket 5 of the optical cable 1, the attachment 40 can be firmly fixed to the optical cable 1.
  • the claw member 44 of the present embodiment has a configuration in which a triangular claw portion 44A projects from the inner surface of a metal plate portion.
  • the claw member 44 has a curved surface that curves along the outer peripheral surface of the jacket 5 of the optical cable 1, and the claw portion 44A projects inward (from the optical cable 1 side) from the curved surface.
  • the fastener 42 does not have to be composed of two members, the base portion 43 and the claw member 44.
  • the fastener 42 is configured by one member including only the U-shaped base portion 43, and a plurality of claw portions 44A are provided on the upper surface (the inner surface that contacts the optical cable 1) of the upper plate portion 431 of the U-shaped base portion 43. It may be formed directly.
  • the fastener 42 may be composed of two or more members.
  • the rod-shaped member 46 is a part that functions as a pseudo tension member.
  • the rod-shaped member 46 is a rod-shaped (including wire-shaped) member having one end (fixed end 46A) fixed to the fastener 42 and the other end (free end 46B) extending along the longitudinal direction of the optical cable 1. is there.
  • the rod member 46 is formed in a cantilever shape and has a fixed end 46A and a free end 46B.
  • the fixed end 46A is joined to the lower surface of the upper plate portion 431 of the fastener 42 by welding.
  • the free end 46B extends toward the front side from the fastener 42 (or the fixed end 46A). As shown in FIG.
  • the free end 46B of the rod-shaped member 46 is inserted into the through hole 221A of the tension member grip portion 22 of the cable grip member 20.
  • the rod-shaped member 46 has a diameter that allows it to be inserted into the through hole 221A of the tension member grip portion 22.
  • the rod-shaped member 46 is made of a metal member (for example, a steel wire). For this reason, even if the rod-shaped member 46 is tightened with the screw 222 of the tension member holding portion 22, the rod-shaped member 46 is not damaged, so that the tension member holding portion 22 can hold the rod-shaped member 46.
  • the fixed end 46A of the rod member 46 is arranged on the front side of the gap 434 between the upper plate portion 431 and the lower plate portion 432 of the fastener 42. That is, the fixed end 46A of the rod-shaped member 46 is arranged so as to close the front open portion of the gap 434.
  • the fastening end 41A of the rod-shaped member 46 is configured so that the fastening band 41 does not fall out of the gap 434 of the fastener 42. Since the rod-shaped member 46 also has a function of preventing the fastening band 41 from falling off, the number of parts can be reduced and the fastening band 41 can be prevented from falling off with a simple configuration.
  • the end surface of the fixed end 46 ⁇ /b>A of the rod member 46 is the front edge portion of the lower plate portion 432 of the fastener 42 ( It is arranged at substantially the same position (the position in the front-rear direction) as the front end). That is, in this embodiment, the distance (the distance in the longitudinal direction) between the end surface of the fixed end 46A of the rod-shaped member 46 and the front edge of the lower plate portion 432 is substantially zero.
  • the distance (the distance in the longitudinal direction) between the end surface of the fixed end 46A of the rod-shaped member 46 and the front edge of the lower plate portion 432 is not limited to zero, and the width W of the fastening band 41 (see FIG. 4). If the length is shorter than this, it is possible to prevent the fastening band 41 from coming off from the gap 434 of the fastener 42.
  • the through hole 221A of the tension member gripping portion 22 of the cable gripping member 20 of the present embodiment is configured so as to match the position of the tension member 6'of the slot type optical cable as shown in FIG. 10B.
  • the rod-shaped member 46 of the attachment 40 is made to extend straight from the fixed end 46A to the front side, the vertical position of the free end 46B of the rod-shaped member 46 and the penetration of the tension member gripping portion 22.
  • the difference from the vertical position of the hole 221A becomes large (as a result, it becomes difficult to insert the free end 46B of the rod member 46 into the through hole 221A of the tension member grip 22).
  • the rod-shaped member 46 has the bent portion 461.
  • a portion on the rear side (the fixed end 46A side) of the bent portion 461 is called a rear portion 462
  • a portion on the front side (the free end 46B side) of the bent portion 461 is called a front portion 463.
  • the rear part 462 is fixed to the lower surface of the upper plate part 431, when the attachment 40 is viewed from the front side, the rear part 462 is below the optical cable 1 (or from the contact surface of the fastener 42 with the optical cable 1). Will also be located below).
  • the front portion 463 is arranged inside the annular fastening band 41 when the attachment 40 is viewed from the front side.
  • the difference between the vertical position of the free end 46B (or the front portion 463) of the rod-shaped member 46 and the vertical position of the through hole 221A of the tension member gripping portion 22 is the fixed end 46A. It is smaller than the difference between the vertical position of (or the rear portion 462) and the vertical position of the through hole 221A. That is, in comparison with the case where the rod-shaped member 46 does not have the bent portion 461 and the rod-shaped member 46 is configured in a straight line, in the present embodiment, the vertical position of the free end 46B of the rod-shaped member 46 and the tension member gripping are determined. It is possible to reduce the difference between the through hole 221A of the portion 22 and the vertical position. Accordingly, in the present embodiment, the free end 46B of the rod-shaped member 46 can be easily inserted into the through hole 221A of the tension member grip portion 22.
  • the through hole 221A of the tension member grip portion 22 is arranged in accordance with the position of the tension member 6 of the center tube type optical cable, not the position of the tension member 6'of the slot type optical cable as in the present embodiment. Since there is little difference between the vertical position of the fixed end 46A of the rod-shaped member 46 and the vertical position of the through hole 221A of the tension member gripping portion 22, the rod-shaped member 46 is not provided with the bent portion 461, and The member 46 may be configured in a straight line. That is, the bar-shaped member 46 may not have the bent portion 461.
  • FIG. 7 is a flow chart of a fixing operation for fixing the optical cable 1 to the cable fixing unit 100.
  • the operator prepares the optical cable 1 and the cable fixing unit 100 (the cable gripping member 20 and the attachment 40) (S001).
  • the worker pre-processes the optical cable 1 (S002).
  • the worker tears the jacket 5 using the tear cord 7 (see FIG. 2) of the optical cable 1, removes the torn jacket 5, and takes out the optical fiber 3 housed inside.
  • the tension member 6 non-metallic is cut at the position of the lead-out portion 1A of the optical cable 1.
  • the worker fixes the attachment 40 to the end of the optical cable 1 as shown in FIG. 1A.
  • the worker fastens the fastening band 41 by inserting the end portion of the optical cable 1 into the fastening band 41 of the attachment 40 and tightening the screw of the fastening band 41 with a tool.
  • the claw portion 44A (demon eyes) of the claw member 44 of the fastener 42 bites into the jacket 5 of the optical cable 1 and the attachment 40 is firmly fixed to the optical cable 1.
  • the worker causes the tension member grip portion 22 to grip the rod-shaped member 46 of the attachment 40 (S004). Specifically, the worker inserts the rod-shaped member 46 of the attachment 40 into the through hole 221A of the tension member holding portion 22 of the cable holding member 20, tightens the screw 222 of the tension member holding portion 22, and the rod-shaped member 46.
  • the rod-shaped member 46 is gripped by the tension member gripping portion 22 by tightening with a screw 222.
  • the rod member 46 of the attachment 40 fixed to the end of the optical cable 1 is gripped by the tension member grip 22. Therefore, it is not necessary to tighten the non-metallic tension member 6 with the screw 222, so that the optical cable 1 can be fixed to the cable gripping member 20 without damaging the non-metallic tension member 6.
  • the attachment 40 is in a state in which it is easy to move with respect to the cable gripping member 20 centering on the tension member gripping portion 22. If the attachment 40 moves loosely with respect to the cable gripping member 20 around the tension member gripping portion 22, the gripping of the rod-shaped member 46 by the tension member gripping portion 22 may be loosened, and the rod-shaped member 46 may become loose. There is a risk of coming off from 20.
  • the worker binds the optical cable 1 to the binding portion 24 of the cable gripping member 20 using the binding band 30 (S005).
  • the tension member gripping portion 22 is provided on the front side of the cable gripping member 20, whereas the binding portion 24 is provided on the rear side of the cable gripping member 20 (on the side opposite to the tension member gripping portion 22). Therefore, the distance between the tension member gripping portion 22 and the binding portion 24 in the front-rear direction is long. Therefore, by fixing the rod-shaped member 46 of the attachment 40 with the tension member grip 22 and fixing the optical cable 1 (the optical cable 1 with the attachment 40 fixed) with the binding part 24, the attachment 40 is fixed to the tension member grip 22.
  • the cable fixing unit 100 of the second embodiment has the above-described cable gripping member 20 and the attachment 40, as in the first embodiment.
  • the attachment 40 of the second embodiment has a fastening band 41, a fastener 42, and a rod-shaped member 46, as in the first embodiment.
  • the fastening band 41 and the rod-shaped member 46 of the second embodiment have the same configuration as that of the first embodiment.
  • the base portion 43 of the fastener 42 has a different shape from the base portion 43 of the first embodiment.
  • the base part 43 of the second embodiment is a member formed by an upper plate part 431 and a pair of side plate parts 435.
  • the base portion 43 has a U-shape when viewed from the left-right direction
  • the base portion 43 has a U-shape when viewed from the front-rear direction.
  • the side plate portion 435 is a plate-shaped portion that is bent at the left and right edges of the upper plate portion 431. Bent portions 433 are formed on the left and right edges of the upper plate portion 431, respectively.
  • the bent portion 433 of the second embodiment is a portion where the sheet metal is bent so that the fold line extends in the front-rear direction.
  • the side plate portion 435 is formed with an insertion hole 435A through which the fastening band 41 is inserted.
  • the fastening band 41 is fastened to the fastener 42 by inserting the fastening band 41 into the insertion holes 435A of the pair of side plate portions 435.
  • the base portion 43 of the second embodiment has one more bent portion 433 as compared with the base portion 43 of the first embodiment, and a portion (here, the side plate portion 435) bent from the upper plate portion 431. ), it is necessary to form the insertion hole 435A, so that the shape is complicated and the manufacturing cost is high (in contrast, in the above-described first embodiment, the number of the bent portions 433 is small and the insertion hole 435A is unnecessary. Therefore, the fastening band 41 can be fastened to the fastener 42 with a simple configuration).

Abstract

[Problem] To anchor an optical cable to a cable holding member without damaging a non-metallic tension member. [Solution] The attachment according to the present disclosure is an attachment for anchoring a non-metallic optical cable to a cable holding member provided with a tension member holding part for holding a metal tension member. The attachment comprises: a band for fastening to an end of the optical cable; a fastener for fastening the band; and a rod-shaped member that is anchored to the fastener, extends in the lengthwise direction of the optical cable, and can be held to the tension member holding part.

Description

アタッチメント、ケーブル固定ユニット及びケーブル固定方法Attachment, cable fixing unit and cable fixing method
　本発明は、アタッチメント、ケーブル固定ユニット及びケーブル固定方法に関する。 The present invention relates to an attachment, a cable fixing unit, and a cable fixing method.
　特許文献１には、スロット型光ケーブルのテンションメンバを把持することによって光ケーブルを固定するケーブル把持部材が記載されている。特許文献２には、センターチューブ型光ケーブルのテンションメンバを把持することによって光ケーブルを固定するケーブル把持部材が記載されている。 Patent Document 1 describes a cable gripping member that fixes an optical cable by gripping a tension member of a slot type optical cable. Patent Document 2 describes a cable gripping member that fixes an optical cable by gripping a tension member of a center tube type optical cable.
特開２００８－３２９７１公報JP 2008-32971 A 特許第６３９７９４４号公報Japanese Patent No. 6397944
　従来の光ケーブルではテンションメンバに鋼線が用いられており、特許文献１、２に記載のケーブル把持部材は、光ケーブルのテンションメンバをネジで締め付けることによってテンションメンバを把持し、これにより光ケーブルを固定している。但し、ノンメタリックタイプの光ケーブルではテンションメンバにノンメタリック材料（例えば繊維強化プラスチックなど）が用いられており、この場合、テンションメンバをネジで締め付けると、テンションメンバを破損させるおそれがある。このように、光ケーブルのテンションメンバにノンメタリック材料が用いられた場合には、テンションメンバをネジで締め付けることができず、この結果、光ケーブルをケーブル把持部材に固定できないという問題が生じる。 A steel wire is used for a tension member in a conventional optical cable, and the cable gripping members described in Patent Documents 1 and 2 grip the tension member by tightening the tension member of the optical cable with a screw, thereby fixing the optical cable. ing. However, in the non-metallic type optical cable, a non-metallic material (for example, fiber reinforced plastic) is used for the tension member, and in this case, if the tension member is tightened with a screw, the tension member may be damaged. As described above, when the non-metallic material is used for the tension member of the optical cable, the tension member cannot be tightened with the screw, and as a result, the optical cable cannot be fixed to the cable holding member.
　本発明は、テンションメンバを破損させずに光ケーブルをケーブル把持部材に固定することを目的とする。 The present invention aims to fix the optical cable to the cable gripping member without damaging the tension member.
　上記目的を達成するための主たる発明は、金属製のテンションメンバを把持するテンションメンバ把持部を備えたケーブル把持部材に、ノンメタリックの光ケーブルを固定するためのアタッチメントであって、光ケーブルの端部に締結するバンドと、前記バンドを留める留め具と、前記留め具に固定され、前記光ケーブルの長手方向に延出し、前記テンションメンバ把持部に把持させることが可能な棒状部材とを有することを特徴とするアタッチメントである。 A main invention for achieving the above object is an attachment for fixing a non-metallic optical cable to a cable gripping member provided with a tension member gripping portion for gripping a metal tension member, and an attachment to an end portion of the optical cable. It has a band to be fastened, a fastener for fastening the band, and a rod-shaped member fixed to the fastener, extending in the longitudinal direction of the optical cable, and capable of being held by the tension member holding portion. Attachment.
　本発明の他の特徴については、後述する明細書及び図面の記載により明らかにする。 Other features of the present invention will be clarified by the description in the specification and drawings described later.
　本発明によれば、テンションメンバを破損させずに光ケーブルをケーブル把持部材に固定することができる。 According to the present invention, the optical cable can be fixed to the cable holding member without damaging the tension member.
図１Ａは、第１実施形態のアタッチメント４０を取り付けた光ケーブル１の説明図である。図１Ｂは、第１実施形態のケーブル固定ユニット１００で光ケーブル１を固定した様子の説明図である。FIG. 1A is an explanatory diagram of the optical cable 1 to which the attachment 40 of the first embodiment is attached. FIG. 1B is an explanatory diagram showing how the optical cable 1 is fixed by the cable fixing unit 100 of the first embodiment. 図２は、光ケーブル１の断面図である。FIG. 2 is a sectional view of the optical cable 1. 図３Ａ及び図３Ｂは、アタッチメント４０の斜視図である。3A and 3B are perspective views of the attachment 40. 図４は、アタッチメント４０の６面図である。FIG. 4 is a six-sided view of the attachment 40. 図５Ａ及び図５Ｂは、締結バンド４１を外したアタッチメント４０の斜視図である。5A and 5B are perspective views of the attachment 40 with the fastening band 41 removed. 図６は、締結バンド４１を外したアタッチメント４０の６面図である。FIG. 6 is a six-sided view of the attachment 40 with the fastening band 41 removed. 図７は、光ケーブル１をケーブル固定ユニット１００に固定する固定作業のフロー図である。FIG. 7 is a flow chart of a fixing operation for fixing the optical cable 1 to the cable fixing unit 100. 図８Ａ及び図８Ｂは、第２実施形態のアタッチメント４０の斜視図である。8A and 8B are perspective views of the attachment 40 of the second embodiment. 図９Ａは、光成端箱１０の内部配線の説明図である。図９Ｂは、光成端箱１０のケーブル固定部１７の説明図である。FIG. 9A is an explanatory diagram of internal wiring of the termination box 10. FIG. 9B is an explanatory diagram of the cable fixing portion 17 of the termination box 10. 図１０Ａは、ケーブル把持部材２０の斜視図である。図１０Ｂは、ケーブル把持部材２０で光ケーブル１を把持した様子の説明図である。FIG. 10A is a perspective view of the cable gripping member 20. FIG. 10B is an explanatory diagram showing how the optical cable 1 is held by the cable holding member 20.
　後述する明細書及び図面の記載から、少なくとも以下の事項が明らかとなる。 At least the following matters will be clarified from the description and drawings described below.
　金属製のテンションメンバを把持するテンションメンバ把持部を備えたケーブル把持部材に、ノンメタリックの光ケーブルを固定するためのアタッチメントであって、
　光ケーブルの端部に締結するバンドと、
　前記バンドを留める留め具と、
　前記留め具に固定され、前記光ケーブルの長手方向に延出し、前記テンションメンバ把持部に把持させることが可能な棒状部材と
を有することを特徴とするアタッチメントが明らかとなる。
　このようなアタッチメントによれば、テンションメンバを破損させずに光ケーブルをケーブル把持部材に固定することができる。 An attachment for fixing a non-metallic optical cable to a cable holding member having a tension member holding portion for holding a metal tension member,
A band that is fastened to the end of the optical cable,
A fastener for fastening the band,
An attachment characterized in that it has a rod-like member that is fixed to the fastener, extends in the longitudinal direction of the optical cable, and can be held by the tension member holding portion.
With such an attachment, the optical cable can be fixed to the cable holding member without damaging the tension member.
　前記バンドは、ホースバンドであることが望ましい。これにより、様々な径の光ケーブルにアタッチメントを固定することが可能である。 The band is preferably a hose band. This allows the attachment to be fixed to optical cables of various diameters.
　前記留め具は、前記光ケーブルと接触する内面に、前記光ケーブルの外被に食い込ませる複数の爪部を有することが望ましい。これにより、光ケーブルにアタッチメントを強固に固定することができる。 It is desirable that the fastener has a plurality of claws on its inner surface that comes into contact with the optical cable, and that engages with the jacket of the optical cable. As a result, the attachment can be firmly fixed to the optical cable.
　前記留め具は、前記光ケーブルの側に配置された上板部と、前記上板部から前記光ケーブルの側とは反対側に折り曲げられた下板部とにより形成されたＵ字状の部材を有し、
　前記上板部と前記下板部との隙間に前記バンドの一部が配置されていることが望ましい。これにより、簡易な構成でバンドを留め具に留めることができる。 The fastener has a U-shaped member formed by an upper plate portion arranged on the optical cable side and a lower plate portion bent from the upper plate portion to the side opposite to the optical cable side. Then
It is preferable that a part of the band is arranged in a gap between the upper plate portion and the lower plate portion. Accordingly, the band can be fastened to the fastener with a simple structure.
　前記棒状部材の固定端によって、前記隙間からの前記バンドの脱落が防止されていることが望ましい。これにより、簡易な構成でバンドの脱落を防止できる。 It is desirable that the fixed end of the rod-shaped member prevents the band from falling out of the gap. This makes it possible to prevent the band from falling off with a simple structure.
　前記棒状部材の固定端と前記下板部の端部との間の前記長手方向における間隔は、前記バンドの幅よりも短いことが望ましい。これにより、前記隙間からの前記バンドの脱落を防止できる。 The distance between the fixed end of the rod-shaped member and the end of the lower plate portion in the longitudinal direction is preferably shorter than the width of the band. As a result, it is possible to prevent the band from coming off from the gap.
　前記棒状部材は、屈曲部を有し、前記長手方向から見たとき、前記テンションメンバ把持部に把持させる側の前記棒状部材の端部は、環状の前記バンドの内側に配置されていることが望ましい。これにより、棒状部材をテンションメンバ把持部２２に把持させ易くなる。 The rod-shaped member has a bent portion, and when viewed in the longitudinal direction, an end portion of the rod-shaped member on the side to be gripped by the tension member gripping portion is arranged inside the annular band. desirable. This facilitates the tension member gripping portion 22 to grip the rod-shaped member.
　金属製のテンションメンバを把持するテンションメンバ把持部を備えたケーブル把持部材と、アタッチメントとを備え、前記アタッチメントは、光ケーブルの端部に締結するバンドと、前記バンドを留める留め具と、前記留め具に固定され、前記光ケーブルの長手方向に延出し、前記テンションメンバ把持部に把持させることが可能な棒状部材とを有することを特徴とするケーブル固定ユニットが明らかとなる。このようなケーブル固定ユニットによれば、テンションメンバを破損させずに光ケーブルをケーブル把持部材に固定することができる。 A cable gripping member having a tension member gripping portion for gripping a metal tension member, and an attachment, wherein the attachment is a band to be fastened to an end of an optical cable, a fastener for fastening the band, and the fastener. And a rod-shaped member that is fixed to the optical fiber, extends in the longitudinal direction of the optical cable, and can be gripped by the tension member gripping portion. According to such a cable fixing unit, the optical cable can be fixed to the cable holding member without damaging the tension member.
　金属製のテンションメンバを把持するテンションメンバ把持部を備えたケーブル把持部材を準備すること、バンドと、前記バンドを留める留め具と、前記留め具に固定された棒状部材とを備えたアタッチメントを準備すること、ノンメタリックの光ケーブルの端部に前記バンドを締結することによって、前記光ケーブルに前記アタッチメントを固定すること、及び、前記テンションメンバ把持部に前記棒状部材を把持させることによって、前記光ケーブルを前記ケーブル把持部材に固定することを行うケーブル固定方法が明らかとなる。このようなケーブル固定方法によれば、テンションメンバを破損させずに光ケーブルをケーブル把持部材に固定することができる。 Preparing a cable gripping member having a tension member gripping part for gripping a metal tension member, and preparing an attachment including a band, a fastener for fastening the band, and a rod-shaped member fixed to the fastener. By fixing the attachment to the optical cable by fastening the band to the end of the non-metallic optical cable, and by making the tension member gripping portion grip the rod-shaped member, A cable fixing method for fixing to the cable gripping member becomes clear. According to such a cable fixing method, the optical cable can be fixed to the cable holding member without damaging the tension member.
　＝＝＝第１実施形態＝＝＝
　まずケーブル把持部材２０について説明し、その後に本実施形態のアタッチメント４０（及びケーブル固定ユニット１００）について説明する。 === First Embodiment ===
First, the cable gripping member 20 will be described, and then the attachment 40 (and the cable fixing unit 100) of this embodiment will be described.
　＜参考説明：ケーブル把持部材２０＞
　図９Ａは、光成端箱１０の内部配線の説明図である。ここでは、ケーブル把持部材２０が光成端箱１０で用いられている例を説明する。但し、ケーブル把持部材２０は、光成端箱１０に限らず、例えばクロージャなどの他の外部装置にも利用可能である。 <Reference explanation: Cable gripping member 20>
FIG. 9A is an explanatory diagram of internal wiring of the termination box 10. Here, an example in which the cable gripping member 20 is used in the termination box 10 will be described. However, the cable gripping member 20 can be used not only for the termination box 10 but also for other external devices such as a closure.
　光成端箱１０は、光スプリッタモジュール１１と、余長収納部１３と、成端トレイ１５と、ケーブル固定部１７とを有する。光スプリッタモジュール１１は、多数の光アダプタ１１Ａを有するモジュールである。余長収納部１３は、光ファイバ３（光コードを含む）の余長を収容する部材（トレイ）である。成端トレイ１５は、例えば融着部を収容する融着部収納トレイである。ここでは、光ケーブル１から口出しした光ファイバ３と、一端に光コネクタ３Ａ’（光アダプタ１１Ａに接続されている）の取り付けられた光ファイバ３’の他端とが融着されており、その融着部が成端トレイ１５に収納されている。なお、光成端箱１０の構成は、この構成に限られるものではない。 The optical termination box 10 has an optical splitter module 11, an extra length storage portion 13, a termination tray 15, and a cable fixing portion 17. The optical splitter module 11 is a module having many optical adapters 11A. The extra length storage unit 13 is a member (tray) that stores the extra length of the optical fiber 3 (including the optical cord). The termination tray 15 is, for example, a fusion portion storage tray that accommodates the fusion portion. Here, the optical fiber 3 output from the optical cable 1 and the other end of the optical fiber 3′ having the optical connector 3A′ (connected to the optical adapter 11A) attached to one end are fused, and the fusion The attachment portion is stored in the termination tray 15. The configuration of the optical termination box 10 is not limited to this configuration.
　図９Ｂは、光成端箱１０のケーブル固定部１７の説明図である。ケーブル固定部１７には、ケーブル把持部材２０を固定可能である。ここでは、光ケーブル１の端部を把持したケーブル把持部材２０が、ケーブル固定部１７に着脱可能に取り付けられている。 FIG. 9B is an explanatory diagram of the cable fixing portion 17 of the termination box 10. The cable gripping member 20 can be fixed to the cable fixing portion 17. Here, the cable holding member 20 holding the end portion of the optical cable 1 is detachably attached to the cable fixing portion 17.
　図１０Ａは、ケーブル把持部材２０の斜視図である。図１０Ｂは、ケーブル把持部材２０で光ケーブル１を把持した様子の説明図である。なお、図１０Ｂに示す光ケーブル１は、金属製のテンションメンバ６’を有するメタリックタイプの光ケーブルである。具体的には、図１０Ｂに示す光ケーブル１はスロット型光ケーブルであり、スロットロッド９’の中心に鋼線のテンションメンバ６’が配置されている。 FIG. 10A is a perspective view of the cable grip member 20. FIG. 10B is an explanatory diagram showing how the optical cable 1 is held by the cable holding member 20. The optical cable 1 shown in FIG. 10B is a metallic type optical cable having a metal tension member 6'. Specifically, the optical cable 1 shown in FIG. 10B is a slot type optical cable, and a steel wire tension member 6'is arranged at the center of the slot rod 9'.
　ケーブル把持部材２０の説明では、図１０Ｂに示すように各方向を定義する。光ケーブル１の長手方向を「前後方向」とし、光ケーブル１の端部の側を「前」とし、逆側を「後」とする。ケーブル把持部材２０のケーブル載置面に垂直な方向を「上下方向」とし、ケーブル把持部材２０から見て光ケーブル１の側を「上」とし、逆側を「下」とする。前後方向及び上下方向に垂直な方向を左右方向（又は幅方向）とし、後から前を見たときの右側を「右」とし、逆側を「左」とする。 In the description of the cable grip member 20, each direction is defined as shown in FIG. 10B. The longitudinal direction of the optical cable 1 is defined as "front-back direction", the end side of the optical cable 1 is defined as "front", and the opposite side is defined as "rear". The direction perpendicular to the cable mounting surface of the cable gripping member 20 is defined as “up-down direction”, the side of the optical cable 1 viewed from the cable gripping member 20 is defined as “upper”, and the opposite side is defined as “lower”. The direction perpendicular to the front-back direction and the vertical direction is the left-right direction (or the width direction), the right side when viewing the front from the back is "right", and the opposite side is "left".
　ケーブル把持部材２０は、光ケーブル１のテンションメンバ６’を把持することによって光ケーブル１の端部を固定する部材である。ケーブル把持部材２０は、本体部２１と、テンションメンバ把持部２２と、固定部２３と、結束部２４とを有する。 The cable gripping member 20 is a member that fixes the end portion of the optical cable 1 by gripping the tension member 6 ′ of the optical cable 1. The cable gripping member 20 has a main body portion 21, a tension member gripping portion 22, a fixing portion 23, and a binding portion 24.
　本体部２１は、ケーブル把持部材２０の本体を構成する金属板状の部材である。板状の本体部２１の上面は、光ケーブル１を載置するケーブル載置面となる。本体部２１の上面には、テンションメンバ把持部２２が設けられている。また、本体部２１の側面（又は下面）には、固定部２３が設けられている。本体部２１の中央部には、結束部２４が設けられている。 The main body 21 is a metal plate-shaped member that constitutes the main body of the cable gripping member 20. The upper surface of the plate-shaped main body 21 serves as a cable mounting surface on which the optical cable 1 is mounted. A tension member grip portion 22 is provided on the upper surface of the main body portion 21. A fixing portion 23 is provided on the side surface (or the lower surface) of the main body portion 21. A bundling portion 24 is provided at the center of the main body portion 21.
　テンションメンバ把持部２２は、テンションメンバ６’を把持する部位である。テンションメンバ把持部２２は、把持ブロック２２１と、ネジ２２２とを有する。把持ブロック２２１は、本体部２１の上面に固定されたブロック状（柱状）の部位であり、貫通穴２２１Ａを有する。貫通穴２２１Ａは、前後方向に貫通した穴であり、テンションメンバ６’を挿通させる穴である。把持ブロック２２１には上下方向にネジ穴が形成されており、ネジ穴にはネジ２２２が取り付けられている。貫通穴２２１Ａにテンションメンバ６’を挿通させた状態でネジ２２２を締めることによって、テンションメンバ６’がネジ２２２に締め付けられて、これにより、テンションメンバ６’がテンションメンバ把持部２２に把持されることになる。 The tension member grip portion 22 is a portion for gripping the tension member 6'. The tension member grip portion 22 has a grip block 221 and a screw 222. The grip block 221 is a block-shaped (columnar) portion fixed to the upper surface of the main body 21 and has a through hole 221A. The through hole 221A is a hole that penetrates in the front-rear direction, and is a hole through which the tension member 6'is inserted. A screw hole is formed in the grip block 221 in the vertical direction, and a screw 222 is attached to the screw hole. By tightening the screw 222 with the tension member 6'inserted in the through hole 221A, the tension member 6'is tightened to the screw 222, whereby the tension member 6'is gripped by the tension member grip portion 22. It will be.
　固定部２３は、ケーブル把持部材２０を外部の部材に固定するための部位である。例えば、ケーブル把持部材２０を光成端箱１０（図９Ａ参照）に固定する際に、光成端箱１０のケーブル固定部１７（図９Ｂ参照）に固定部２３を固定させることになる。なお、ケーブル把持部材２０が固定される外部の部材は光成端箱１０に限られるものではなく、例えばクロージャなどでも良い。 The fixing portion 23 is a portion for fixing the cable gripping member 20 to an external member. For example, when fixing the cable gripping member 20 to the optical termination box 10 (see FIG. 9A), the fixing portion 23 is fixed to the cable fixing portion 17 (see FIG. 9B) of the optical termination box 10. The external member to which the cable gripping member 20 is fixed is not limited to the optical termination box 10, and may be, for example, a closure.
　結束部２４は、結束バンド３０で光ケーブル１を本体部２１に固定（結束）させる部位である。ここでは、本体部２１の中央に窓が形成されており、窓の内側に向かって窓の縁から舌状に延び出た結束部２４が形成されている。但し、結束部２４は、このような舌状に形成された部位に限られるものではない。結束部２４は、窓の後側に設けられている。言い換えると、結束部２４は、窓（若しくは本体部２１の中央）から見てテンションメンバ把持部２２とは反対側に設けられている。このため、テンションメンバ把持部２２と結束部２４との前後方向の間隔が長くなるので、テンションメンバ把持部２２でテンションメンバ６’を把持しつつ、光ケーブル１を結束部２４に結束バンド３０で固定することによって、光ケーブル１をケーブル把持部材２０に強固に固定できる。 The binding portion 24 is a portion for fixing (binding) the optical cable 1 to the main body portion 21 with the binding band 30. Here, a window is formed in the center of the main body portion 21, and a binding portion 24 that extends in a tongue shape from the edge of the window toward the inside of the window is formed. However, the binding portion 24 is not limited to such a tongue-shaped portion. The binding portion 24 is provided on the rear side of the window. In other words, the binding portion 24 is provided on the side opposite to the tension member grip portion 22 when viewed from the window (or the center of the main body portion 21). For this reason, the distance between the tension member gripping portion 22 and the binding portion 24 in the front-rear direction becomes long, so that the optical member 1 is fixed to the binding portion 24 by the binding band 30 while holding the tension member 6 ′ by the tension member gripping portion 22. By doing so, the optical cable 1 can be firmly fixed to the cable gripping member 20.
　図１０Ｂに示す光ケーブル１のテンションメンバ６’は鋼線であり、ケーブル把持部材２０は、テンションメンバ６’をネジ２２２で締め付けることによって光ケーブル１を固定している。但し、ノンメタリックタイプの光ケーブルでは、テンションメンバ６’にノンメタリック材料（例えば繊維強化プラスチックなど）が用いられている。光ケーブル１のテンションメンバ６’にノンメタリック材料が用いられた場合には、テンションメンバ６’をネジ２２２で締め付けるとテンションメンバ６’が破損するおそれがある。このため、テンションメンバ６’をネジ２２２で締め付けることができず、この結果、光ケーブル１をケーブル把持部材２０に固定できないという問題が生じる。
　そこで、本実施形態では、ケーブル把持部材２０に光ケーブル１を固定する際に、次に説明するアタッチメント４０を用いる。 The tension member 6′ of the optical cable 1 shown in FIG. 10B is a steel wire, and the cable gripping member 20 fixes the optical cable 1 by tightening the tension member 6′ with a screw 222. However, in the non-metallic type optical cable, a non-metallic material (for example, fiber reinforced plastic) is used for the tension member 6'. If a non-metallic material is used for the tension member 6 ′ of the optical cable 1, the tension member 6 ′ may be damaged if the tension member 6 ′ is tightened with the screw 222. Therefore, the tension member 6'cannot be tightened with the screw 222, and as a result, the optical cable 1 cannot be fixed to the cable grip member 20.
Therefore, in this embodiment, when fixing the optical cable 1 to the cable gripping member 20, the attachment 40 described below is used.
　＜アタッチメント４０＞
　図１Ａは、第１実施形態のアタッチメント４０を取り付けた光ケーブル１の説明図である。図１Ｂは、第１実施形態のケーブル固定ユニット１００で光ケーブル１を固定した様子の説明図である。図２は、光ケーブル１の断面図である。 <Attachment 40>
FIG. 1A is an explanatory diagram of the optical cable 1 to which the attachment 40 of the first embodiment is attached. FIG. 1B is an explanatory diagram showing how the optical cable 1 is fixed by the cable fixing unit 100 of the first embodiment. FIG. 2 is a sectional view of the optical cable 1.
　アタッチメント４０の説明では、図１Ａに示すように各方向を定義する。光ケーブル１の長手方向を「前後方向」とし、光ケーブル１の端部の側を「前」とし、逆側を「後」とする。若しくは、締結バンド４１の環状のバンドの中心軸に平行な方向を「前後方向」とし、留め具４２から見て棒状部材４６の延び出る側を「前」とし、逆側を「後」とする。アタッチメント４０の留め具４２のケーブル載置面に垂直な方向を「上下方向」とし、留め具４２から見て光ケーブル１の側を「上」とし、逆側を「下」とする。前後方向及び上下方向に垂直な方向を左右方向（又は幅方向）とし、後から前を見たときの右側を「右」とし、逆側を「左」とする。なお、図１Ｂでは、アタッチメント４０の上下方向がケーブル把持部材２０の上下方向（図１０Ｂ参照）と一致しているが、不一致でも良い。 In the description of the attachment 40, each direction is defined as shown in FIG. 1A. The longitudinal direction of the optical cable 1 is defined as "front-back direction", the end side of the optical cable 1 is defined as "front", and the opposite side is defined as "rear". Alternatively, the direction parallel to the central axis of the annular band of the fastening band 41 is defined as “front-back direction”, the side where the rod-shaped member 46 extends from the fastener 42 is defined as “front”, and the opposite side is defined as “rear”. .. The direction perpendicular to the cable mounting surface of the fastener 42 of the attachment 40 is defined as “up-down direction”, the side of the optical cable 1 viewed from the fastener 42 is defined as “up”, and the opposite side is defined as “down”. The direction perpendicular to the front-back direction and the vertical direction is the left-right direction (or the width direction), the right side when viewing the front from the back is "right", and the opposite side is "left". In FIG. 1B, the vertical direction of the attachment 40 matches the vertical direction of the cable gripping member 20 (see FIG. 10B), but they may not match.
　光ケーブル１は、複数の光ファイバユニット２と、外被５と、テンションメンバ６とを有する。光ファイバユニット２は、複数の光ファイバ３をバンドル材４で束ねた部材である。複数の光ファイバ３は、ここでは間欠連結型の光ファイバテープ（光ファイバリボン）によって構成されている。但し、複数の単心の光ファイバ３をバンドル材４で束ねて光ファイバユニット２が構成されても良い。外被５は、複数の光ファイバユニット２を内部に収容する部材である。外被５にはテンションメンバ６（及び引き裂き紐７）が埋設されている。 The optical cable 1 has a plurality of optical fiber units 2, a jacket 5, and a tension member 6. The optical fiber unit 2 is a member in which a plurality of optical fibers 3 are bundled by a bundle material 4. Here, the plurality of optical fibers 3 are configured by intermittently connecting type optical fiber tapes (optical fiber ribbons). However, the optical fiber unit 2 may be configured by bundling a plurality of single-core optical fibers 3 with the bundle material 4. The jacket 5 is a member that accommodates the plurality of optical fiber units 2 therein. A tension member 6 (and a tear string 7) is embedded in the outer cover 5.
　テンションメンバ６は、非金属製の材料（ノンメタリック材料）で構成されている。具体的には、テンションメンバ６は、繊維強化プラスチックで構成されている。テンションメンバ６をノンメタリック材料で構成することによって、金属を用いずに光ケーブル１が構成されている。つまり、本実施形態の光ケーブル１は、ノンメタリックの光ケーブル（ノンメタリックケーブル）である。ここでは、外被５の中央部の収容空間に複数の光ファイバユニット２が収容されており、その収容空間を挟むように一対のテンションメンバ６が外被５に埋設されている。本実施形態の光ケーブル１は、センターチューブ型光ケーブルであるが、ノンメタリックタイプの光ケーブルであればスロット型光ケーブルでも良い。 The tension member 6 is made of a non-metallic material (non-metallic material). Specifically, the tension member 6 is made of fiber reinforced plastic. By forming the tension member 6 with a non-metallic material, the optical cable 1 is formed without using metal. That is, the optical cable 1 of the present embodiment is a non-metallic optical cable (non-metallic cable). Here, a plurality of optical fiber units 2 are housed in a housing space at the center of the jacket 5, and a pair of tension members 6 are embedded in the jacket 5 so as to sandwich the housing space. Although the optical cable 1 of the present embodiment is a center tube type optical cable, it may be a slot type optical cable as long as it is a non-metallic type optical cable.
　ケーブル固定ユニット１００は、光ケーブル１の端部を固定する部材である。ケーブル固定ユニット１００は、前述のケーブル把持部材２０と、アタッチメント４０とを有する。 The cable fixing unit 100 is a member that fixes the end of the optical cable 1. The cable fixing unit 100 has the above-described cable gripping member 20 and the attachment 40.
　図３Ａ及び図３Ｂは、アタッチメント４０の斜視図である。図４は、アタッチメント４０の６面図である。図５Ａ及び図５Ｂは、締結バンド４１を外したアタッチメント４０の斜視図である。図６は、締結バンド４１を外したアタッチメント４０の６面図である。 3A and 3B are perspective views of the attachment 40. FIG. 4 is a six-sided view of the attachment 40. 5A and 5B are perspective views of the attachment 40 with the fastening band 41 removed. FIG. 6 is a six-sided view of the attachment 40 with the fastening band 41 removed.
　アタッチメント４０は、金属製のテンションメンバ６’を把持するテンションメンバ把持部２２を備えたケーブル把持部材２０に、ノンメタリックの光ケーブル１を固定するための部材である。本実施形態では、アタッチメント４０を光ケーブル１に取り付けた上で、アタッチメント４０付きの光ケーブル１をケーブル把持部材２０に固定することになる。つまり、本実施形態では、アタッチメント４０を介在させて光ケーブル１をケーブル把持部材２０に固定することになる。アタッチメント４０は、締結バンド４１と、留め具４２と、棒状部材４６とを有する。 The attachment 40 is a member for fixing the non-metallic optical cable 1 to the cable holding member 20 having the tension member holding portion 22 for holding the metal tension member 6'. In the present embodiment, the attachment 40 is attached to the optical cable 1, and then the optical cable 1 with the attachment 40 is fixed to the cable gripping member 20. That is, in the present embodiment, the optical cable 1 is fixed to the cable gripping member 20 with the attachment 40 interposed. The attachment 40 has a fastening band 41, a fastener 42, and a rod-shaped member 46.
　締結バンド４１は、光ケーブル１の端部に締結するバンドである。環状のバンド（帯状のバンドを環状に巻いて構成したもの）を締め上げることによって、締結バンド４１を光ケーブル１の端部に締結させて、アタッチメント４０を光ケーブル１に固定することになる。 The fastening band 41 is a band that is fastened to the end of the optical cable 1. The fastening band 41 is fastened to the end portion of the optical cable 1 by tightening the annular band (which is formed by winding a band-shaped band in an annular shape), and the attachment 40 is fixed to the optical cable 1.
　本実施形態では、締結バンド４１として、ホースバンドが採用されている。ホースバンドを用いることによって、様々な径の光ケーブル１にアタッチメント４０を固定することが可能である。また、本実施形態では、金属製のネジ式ホースバンドが採用されており、工具でネジを締めることによって、締結バンド４１を光ケーブル１に強固に締結可能である。但し、締結バンド４１は、金属製ネジ式ホースバンドに限られるものではなく、光ケーブル１の端部に締結できれば他の種類のバンドでも良い。 In this embodiment, a hose band is used as the fastening band 41. The attachment 40 can be fixed to the optical cables 1 having various diameters by using the hose band. Further, in this embodiment, a metal screw type hose band is adopted, and the fastening band 41 can be firmly fastened to the optical cable 1 by tightening the screw with a tool. However, the fastening band 41 is not limited to the metal screw type hose band, and other types of bands may be used as long as they can be fastened to the end portion of the optical cable 1.
　留め具４２は、締結バンド４１を留める部材である。留め具４２はバックルと呼ばれることもある。本実施形態では、ベース部４３と、爪部材４４とを有する。 The fastener 42 is a member for fastening the fastening band 41. The fastener 42 is sometimes called a buckle. In this embodiment, the base portion 43 and the claw member 44 are included.
　ベース部４３は、留め具４２の本体を構成する部材である。本実施形態では、Ｕ字形状の板金で構成されている。但し、後述するように、ベース部４３を他の形状で構成することも可能である。本実施形態のベース部４３は、上板部４３１と下板部４３２とにより形成されたＵ字状の部材で構成されている。上板部４３１は、光ケーブル１の側に配置された板状の部位である。下板部４３２は、上板部４３１から光ケーブル１の側とは反対側に折り曲げられた板状の部位である。上板部４３１と下板部４３２との間には、折曲部４３３が形成されている。折曲部４３３は、折れ線が幅方向に沿うように板金が折り曲げられた部位である。上板部４３１と下板部４３２は、折曲部４３３によって連結されている。 The base portion 43 is a member that forms the main body of the fastener 42. In the present embodiment, the U-shaped sheet metal is used. However, as will be described later, the base portion 43 can be configured in other shapes. The base portion 43 of the present embodiment is composed of a U-shaped member formed by an upper plate portion 431 and a lower plate portion 432. The upper plate portion 431 is a plate-shaped portion arranged on the optical cable 1 side. The lower plate portion 432 is a plate-shaped portion that is bent from the upper plate portion 431 to the side opposite to the optical cable 1 side. A bent portion 433 is formed between the upper plate portion 431 and the lower plate portion 432. The bent portion 433 is a portion where the sheet metal is bent so that the bent line extends along the width direction. The upper plate portion 431 and the lower plate portion 432 are connected by the bent portion 433.
　上板部４３１と下板部４３２との間には隙間４３４が形成されている。この隙間４３４に締結バンド４１の一部（下部）が配置されている。これにより、締結バンド４１の内側に上板部４３１（及び爪部材４４）が配置され、締結バンド４１を締めると、締結バンド４１の内面が上板部４３１に向かうようにバンド径が収縮し、これにより、締結バンド４１と留め具４２で囲まれた空間で光ケーブル１が締結されることになる。本実施形態では、Ｕ字状のベース部４３の上板部４３１と下板部４３２との隙間４３４に締結バンド４１の一部を配置することによって、簡易な構成で締結バンド４１を留め具４２に留めることができる（例えば、第１実施形態では、後述する第２実施形態と比べて、留め具４２の形状を簡易にできる）。 A gap 434 is formed between the upper plate 431 and the lower plate 432. A part (lower part) of the fastening band 41 is arranged in this gap 434. Thereby, the upper plate portion 431 (and the claw member 44) is arranged inside the fastening band 41, and when the fastening band 41 is tightened, the band diameter shrinks so that the inner surface of the fastening band 41 faces the upper plate portion 431. As a result, the optical cable 1 is fastened in the space surrounded by the fastening band 41 and the fastener 42. In the present embodiment, by disposing a part of the fastening band 41 in the gap 434 between the upper plate portion 431 and the lower plate portion 432 of the U-shaped base portion 43, the fastening band 41 is fastened with the fastener 42 with a simple configuration. (For example, in the first embodiment, the shape of the fastener 42 can be simplified compared to the second embodiment described later).
　本実施形態では、上板部４３１と下板部４３２との間の隙間４３４にネジ式ホースバンド（締結バンド４１）の環状のバンドが配置されており、隙間４３４に対して環状のバンドを摺動させることによって（環状のバンドを回転させることによって）、ネジ式ホースバンド（締結バンド４１）のネジの方向を変えることができる。例えば、図３Ａでは、締結バンド４１のネジの頭部が左側を向いているが、隙間４３４に対して環状のバンドを摺動させて（環状のバンドを回転させて）、ネジの頭部を上側に向かせることが可能である。このように、留め具４２に留められた締結バンド４１を摺動可能に構成することによって、締結バンド４１に光ケーブル１を締結する作業が容易になる。 In the present embodiment, the annular band of the screw type hose band (fastening band 41) is arranged in the gap 434 between the upper plate portion 431 and the lower plate portion 432, and the annular band is slid against the gap 434. By moving it (by rotating the annular band), the screw direction of the threaded hose band (fastening band 41) can be changed. For example, in FIG. 3A, although the screw head of the fastening band 41 faces the left side, the screw head is slid by rotating the annular band with respect to the gap 434 (rotating the annular band). It is possible to turn it to the upper side. As described above, by making the fastening band 41 fastened to the fastener 42 slidable, the work of fastening the optical cable 1 to the fastening band 41 becomes easy.
　爪部材４４は、光ケーブル１の外被５に食い込ませる複数の爪部４４Ａ（鬼目）を有する部材（鬼目部材）である。爪部４４Ａを光ケーブル１の外被５に食い込ませることによって、光ケーブル１にアタッチメント４０を強固に固定することができる。本実施形態の爪部材４４は、金属製の板部の内面から三角形状の爪部４４Ａが突き出た構成である。爪部材４４は、光ケーブル１の外被５の外周面に沿って湾曲した湾曲面を有しており、その湾曲面から爪部４４Ａが内側（光ケーブル１の側）に向かって突出している。これにより、湾曲面を有していない場合（平面に爪部４４Ａが設けられた場合）と比べて、爪部４４Ａを外被５に深く食い込ませることができる。爪部材４４の中央には貫通穴４４Ｂが形成されており、この貫通穴４４Ｂで溶接を施すことによって爪部材４４がベース部４３に接合されている。なお、留め具４２は、ベース部４３と爪部材４４の２部材で構成されていなくても良い。例えば、留め具４２をＵ字形状のベース部４３のみの１部材で構成し、Ｕ字形状のベース部４３の上板部４３１の上面（光ケーブル１と接触する内面）に複数の爪部４４Ａを直接形成しても良い。逆に、留め具４２が２以上の部材で構成されても良い。 The claw member 44 is a member (demon eye member) having a plurality of claw portions 44A (demon eyes) that bite into the jacket 5 of the optical cable 1. By making the claw portion 44A bite into the jacket 5 of the optical cable 1, the attachment 40 can be firmly fixed to the optical cable 1. The claw member 44 of the present embodiment has a configuration in which a triangular claw portion 44A projects from the inner surface of a metal plate portion. The claw member 44 has a curved surface that curves along the outer peripheral surface of the jacket 5 of the optical cable 1, and the claw portion 44A projects inward (from the optical cable 1 side) from the curved surface. As a result, it is possible to make the claw portion 44A deeply dig into the outer cover 5 as compared with a case where the curved surface is not provided (when the claw portion 44A is provided on the flat surface). A through hole 44B is formed in the center of the claw member 44, and the claw member 44 is joined to the base portion 43 by welding the through hole 44B. Note that the fastener 42 does not have to be composed of two members, the base portion 43 and the claw member 44. For example, the fastener 42 is configured by one member including only the U-shaped base portion 43, and a plurality of claw portions 44A are provided on the upper surface (the inner surface that contacts the optical cable 1) of the upper plate portion 431 of the U-shaped base portion 43. It may be formed directly. Conversely, the fastener 42 may be composed of two or more members.
　棒状部材４６は、擬似的なテンションメンバとしての機能する部位である。棒状部材４６は、一端（固定端４６Ａ）が留め具４２に固定されており、他端（自由端４６Ｂ）が光ケーブル１の長手方向に沿って延出した棒状（ワイヤ状を含む）の部材である。棒状部材４６は、片持ち梁状に構成されており、固定端４６Ａと自由端４６Ｂとを有する。ここでは、固定端４６Ａは、留め具４２の上板部４３１の下面に溶接によって接合されている。自由端４６Ｂは、留め具４２（又は固定端４６Ａ）よりも前側に向かって延び出ている。図１Ｂに示すように、棒状部材４６の自由端４６Ｂをケーブル把持部材２０のテンションメンバ把持部２２の貫通穴２２１Ａに挿通させることになる。言い換えると、棒状部材４６は、テンションメンバ把持部２２の貫通穴２２１Ａに挿通可能な径で構成されている。棒状部材４６は、金属製の部材（例えば鋼線）で構成されている。このため、テンションメンバ把持部２２のネジ２２２で棒状部材４６を締め付けても棒状部材４６は破損しないので、テンションメンバ把持部２２に棒状部材４６を把持させることができる。 The rod-shaped member 46 is a part that functions as a pseudo tension member. The rod-shaped member 46 is a rod-shaped (including wire-shaped) member having one end (fixed end 46A) fixed to the fastener 42 and the other end (free end 46B) extending along the longitudinal direction of the optical cable 1. is there. The rod member 46 is formed in a cantilever shape and has a fixed end 46A and a free end 46B. Here, the fixed end 46A is joined to the lower surface of the upper plate portion 431 of the fastener 42 by welding. The free end 46B extends toward the front side from the fastener 42 (or the fixed end 46A). As shown in FIG. 1B, the free end 46B of the rod-shaped member 46 is inserted into the through hole 221A of the tension member grip portion 22 of the cable grip member 20. In other words, the rod-shaped member 46 has a diameter that allows it to be inserted into the through hole 221A of the tension member grip portion 22. The rod-shaped member 46 is made of a metal member (for example, a steel wire). For this reason, even if the rod-shaped member 46 is tightened with the screw 222 of the tension member holding portion 22, the rod-shaped member 46 is not damaged, so that the tension member holding portion 22 can hold the rod-shaped member 46.
　本実施形態では、棒状部材４６の固定端４６Ａは、留め具４２の上板部４３１と下板部４３２との隙間４３４の前側に配置されている。つまり、棒状部材４６の固定端４６Ａは、隙間４３４の前側の開放部を塞ぐように配置されている。これにより、棒状部材４６の固定端４６Ａによって、締結バンド４１が留め具４２の隙間４３４から脱落しないように構成されている。棒状部材４６が締結バンド４１の脱落防止機能を兼ね備えるため、部品点数を減らすことができ、簡易な構成で締結バンド４１の脱落を防止できる。 In the present embodiment, the fixed end 46A of the rod member 46 is arranged on the front side of the gap 434 between the upper plate portion 431 and the lower plate portion 432 of the fastener 42. That is, the fixed end 46A of the rod-shaped member 46 is arranged so as to close the front open portion of the gap 434. As a result, the fastening end 41A of the rod-shaped member 46 is configured so that the fastening band 41 does not fall out of the gap 434 of the fastener 42. Since the rod-shaped member 46 also has a function of preventing the fastening band 41 from falling off, the number of parts can be reduced and the fastening band 41 can be prevented from falling off with a simple configuration.
　また、本実施形態では、留め具４２の隙間４３４からの締結バンド４１の脱落を防止するために、棒状部材４６の固定端４６Ａの端面が、留め具４２の下板部４３２の前縁部（前側の端部）とほぼ同じ位置（前後方向の位置）に配置されている。つまり、本実施形態では、棒状部材４６の固定端４６Ａの端面と下板部４３２の前縁部との間隔（長手方向における間隔）は、ほぼゼロである。但し、棒状部材４６の固定端４６Ａの端面と下板部４３２の前縁部との間隔（長手方向における間隔）は、ゼロに限られるものではなく、締結バンド４１の幅Ｗ（図４参照）よりも短ければ、留め具４２の隙間４３４からの締結バンド４１の脱落を防止できる。 In addition, in the present embodiment, in order to prevent the fastening band 41 from falling out of the gap 434 of the fastener 42, the end surface of the fixed end 46</b>A of the rod member 46 is the front edge portion of the lower plate portion 432 of the fastener 42 ( It is arranged at substantially the same position (the position in the front-rear direction) as the front end). That is, in this embodiment, the distance (the distance in the longitudinal direction) between the end surface of the fixed end 46A of the rod-shaped member 46 and the front edge of the lower plate portion 432 is substantially zero. However, the distance (the distance in the longitudinal direction) between the end surface of the fixed end 46A of the rod-shaped member 46 and the front edge of the lower plate portion 432 is not limited to zero, and the width W of the fastening band 41 (see FIG. 4). If the length is shorter than this, it is possible to prevent the fastening band 41 from coming off from the gap 434 of the fastener 42.
　ところで、本実施形態のケーブル把持部材２０のテンションメンバ把持部２２の貫通穴２２１Ａは、図１０Ｂに示すように、スロット型光ケーブルのテンションメンバ６’の位置に合わせて構成されている。このような状況下において、仮にアタッチメント４０の棒状部材４６を固定端４６Ａから一直線状に前側に延出させると、棒状部材４６の自由端４６Ｂの上下方向の位置と、テンションメンバ把持部２２の貫通穴２２１Ａの上下方向の位置との差が大きくなってしまう（この結果、棒状部材４６の自由端４６Ｂをテンションメンバ把持部２２の貫通穴２２１Ａに挿通させ難くなる）。 By the way, the through hole 221A of the tension member gripping portion 22 of the cable gripping member 20 of the present embodiment is configured so as to match the position of the tension member 6'of the slot type optical cable as shown in FIG. 10B. Under such a circumstance, if the rod-shaped member 46 of the attachment 40 is made to extend straight from the fixed end 46A to the front side, the vertical position of the free end 46B of the rod-shaped member 46 and the penetration of the tension member gripping portion 22. The difference from the vertical position of the hole 221A becomes large (as a result, it becomes difficult to insert the free end 46B of the rod member 46 into the through hole 221A of the tension member grip 22).
　そこで、本実施形態では、棒状部材４６は、屈曲部４６１を有している。ここでは、屈曲部４６１よりも後側（固定端４６Ａの側）の部位を後部４６２と呼び、屈曲部４６１よりも前側（自由端４６Ｂの側）の部位を前部４６３と呼ぶ。後部４６２は、上板部４３１の下面に固定されているため、アタッチメント４０を前側から見たときに、後部４６２は光ケーブル１よりも下側（若しくは、留め具４２における光ケーブル１との接触面よりも下側）に配置されることになる。一方、前部４６３は、アタッチメント４０を前側から見たときに、環状の締結バンド４１の内側に配置されている。このため、本実施形態では、棒状部材４６の自由端４６Ｂ（若しくは前部４６３）の上下方向の位置と、テンションメンバ把持部２２の貫通穴２２１Ａの上下方向の位置との差は、固定端４６Ａ（若しくは後部４６２）の上下方向の位置と貫通穴２２１Ａの上下方向の位置との差よりも小さい。つまり、仮に棒状部材４６に屈曲部４６１が無く棒状部材４６が一直線状に構成されている場合と比べると、本実施形態では、棒状部材４６の自由端４６Ｂの上下方向の位置と、テンションメンバ把持部２２の貫通穴２２１Ａの上下方向の位置との差を小さくすることができる。これにより、本実施形態では、棒状部材４６の自由端４６Ｂをテンションメンバ把持部２２の貫通穴２２１Ａに挿通させ易くなる。 Therefore, in the present embodiment, the rod-shaped member 46 has the bent portion 461. Here, a portion on the rear side (the fixed end 46A side) of the bent portion 461 is called a rear portion 462, and a portion on the front side (the free end 46B side) of the bent portion 461 is called a front portion 463. Since the rear part 462 is fixed to the lower surface of the upper plate part 431, when the attachment 40 is viewed from the front side, the rear part 462 is below the optical cable 1 (or from the contact surface of the fastener 42 with the optical cable 1). Will also be located below). On the other hand, the front portion 463 is arranged inside the annular fastening band 41 when the attachment 40 is viewed from the front side. Therefore, in the present embodiment, the difference between the vertical position of the free end 46B (or the front portion 463) of the rod-shaped member 46 and the vertical position of the through hole 221A of the tension member gripping portion 22 is the fixed end 46A. It is smaller than the difference between the vertical position of (or the rear portion 462) and the vertical position of the through hole 221A. That is, in comparison with the case where the rod-shaped member 46 does not have the bent portion 461 and the rod-shaped member 46 is configured in a straight line, in the present embodiment, the vertical position of the free end 46B of the rod-shaped member 46 and the tension member gripping are determined. It is possible to reduce the difference between the through hole 221A of the portion 22 and the vertical position. Accordingly, in the present embodiment, the free end 46B of the rod-shaped member 46 can be easily inserted into the through hole 221A of the tension member grip portion 22.
　但し、テンションメンバ把持部２２の貫通穴２２１Ａが、本実施形態のようにスロット型光ケーブルのテンションメンバ６’の位置ではなく、センターチューブ型光ケーブルのテンションメンバ６の位置に合わせて配置されている場合には、棒状部材４６の固定端４６Ａの上下方向の位置と、テンションメンバ把持部２２の貫通穴２２１Ａの上下方向の位置との差が小さいため、棒状部材４６に屈曲部４６１を設けずに棒状部材４６を一直線状に構成しても良い。つまり、棒状部材４６に屈曲部４６１が無くても良い。 However, in the case where the through hole 221A of the tension member grip portion 22 is arranged in accordance with the position of the tension member 6 of the center tube type optical cable, not the position of the tension member 6'of the slot type optical cable as in the present embodiment. Since there is little difference between the vertical position of the fixed end 46A of the rod-shaped member 46 and the vertical position of the through hole 221A of the tension member gripping portion 22, the rod-shaped member 46 is not provided with the bent portion 461, and The member 46 may be configured in a straight line. That is, the bar-shaped member 46 may not have the bent portion 461.
　＜固定方法＞
　図７は、光ケーブル１をケーブル固定ユニット１００に固定する固定作業のフロー図である。 <Fixing method>
FIG. 7 is a flow chart of a fixing operation for fixing the optical cable 1 to the cable fixing unit 100.
　まず、作業者は、光ケーブル１とケーブル固定ユニット１００（ケーブル把持部材２０及びアタッチメント４０）とを準備する（Ｓ００１）。次に、作業者は、光ケーブル１を前処理する（Ｓ００２）。このとき、作業者は、光ケーブル１の引き裂き紐７（図２参照）を用いて外被５を引き裂き、引き裂かれた外被５を除去して、内部に収容されている光ファイバ３を取り出す。本実施形態では、外被５を除去するときに、光ケーブル１の口出し部１Ａの位置でテンションメンバ６（ノンメタリック）を切断する。 First, the operator prepares the optical cable 1 and the cable fixing unit 100 (the cable gripping member 20 and the attachment 40) (S001). Next, the worker pre-processes the optical cable 1 (S002). At this time, the worker tears the jacket 5 using the tear cord 7 (see FIG. 2) of the optical cable 1, removes the torn jacket 5, and takes out the optical fiber 3 housed inside. In this embodiment, when removing the jacket 5, the tension member 6 (non-metallic) is cut at the position of the lead-out portion 1A of the optical cable 1.
　次に、作業者は、図１Ａに示すように、光ケーブル１の端部にアタッチメント４０を固定する。具体的には、作業者は、アタッチメント４０の締結バンド４１に光ケーブル１の端部を挿入し、締結バンド４１のネジを工具で締めることによって、締結バンド４１を締結する。締結バンド４１を締結すると、留め具４２の爪部材４４の爪部４４Ａ（鬼目）が光ケーブル１の外被５に食い込み、光ケーブル１にアタッチメント４０が強固に固定されることになる。 Next, the worker fixes the attachment 40 to the end of the optical cable 1 as shown in FIG. 1A. Specifically, the worker fastens the fastening band 41 by inserting the end portion of the optical cable 1 into the fastening band 41 of the attachment 40 and tightening the screw of the fastening band 41 with a tool. When the fastening band 41 is fastened, the claw portion 44A (demon eyes) of the claw member 44 of the fastener 42 bites into the jacket 5 of the optical cable 1 and the attachment 40 is firmly fixed to the optical cable 1.
　次に、作業者は、図１Ｂに示すように、アタッチメント４０の棒状部材４６をテンションメンバ把持部２２に把持させる（Ｓ００４）。具体的には、作業者は、アタッチメント４０の棒状部材４６をケーブル把持部材２０のテンションメンバ把持部２２の貫通穴２２１Ａに挿通させて、テンションメンバ把持部２２のネジ２２２を締めて、棒状部材４６をネジ２２２で締め付けることによって、棒状部材４６をテンションメンバ把持部２２に把持させる。本実施形態では、光ケーブル１のテンションメンバ６をテンションメンバ把持部２２に把持させる代わりに、光ケーブル１の端部に固定したアタッチメント４０の棒状部材４６をテンションメンバ把持部２２に把持させている。このため、ノンメタリックのテンションメンバ６をネジ２２２で締め付けずに済むため、ノンメタリックのテンションメンバ６を破損させずに、光ケーブル１をケーブル把持部材２０に固定することができる。 Next, as shown in FIG. 1B, the worker causes the tension member grip portion 22 to grip the rod-shaped member 46 of the attachment 40 (S004). Specifically, the worker inserts the rod-shaped member 46 of the attachment 40 into the through hole 221A of the tension member holding portion 22 of the cable holding member 20, tightens the screw 222 of the tension member holding portion 22, and the rod-shaped member 46. The rod-shaped member 46 is gripped by the tension member gripping portion 22 by tightening with a screw 222. In the present embodiment, instead of holding the tension member 6 of the optical cable 1 by the tension member grip 22, the rod member 46 of the attachment 40 fixed to the end of the optical cable 1 is gripped by the tension member grip 22. Therefore, it is not necessary to tighten the non-metallic tension member 6 with the screw 222, so that the optical cable 1 can be fixed to the cable gripping member 20 without damaging the non-metallic tension member 6.
　なお、Ｓ００４の段階では、アタッチメント４０が、ケーブル把持部材２０に対してテンションメンバ把持部２２を中心に動き易い状態である。仮にアタッチメント４０がケーブル把持部材２０に対してテンションメンバ把持部２２を中心にグラグラと動いてしまうと、テンションメンバ把持部２２による棒状部材４６の把持が緩むおそれがあり、棒状部材４６がケーブル把持部材２０から外れるおそれがある。 Incidentally, at the stage of S004, the attachment 40 is in a state in which it is easy to move with respect to the cable gripping member 20 centering on the tension member gripping portion 22. If the attachment 40 moves loosely with respect to the cable gripping member 20 around the tension member gripping portion 22, the gripping of the rod-shaped member 46 by the tension member gripping portion 22 may be loosened, and the rod-shaped member 46 may become loose. There is a risk of coming off from 20.
　そこで、作業者は、図１Ｂに示すように、結束バンド３０を用いてケーブル把持部材２０の結束部２４に光ケーブル１を結束する（Ｓ００５）。なお、テンションメンバ把持部２２がケーブル把持部材２０の前側に設けられているのに対して、結束部２４は、ケーブル把持部材２０の後側（テンションメンバ把持部２２とは反対側）に設けられているため、テンションメンバ把持部２２と結束部２４との前後方向の間隔が長い。このため、テンションメンバ把持部２２でアタッチメント４０の棒状部材４６を固定しつつ、結束部２４で光ケーブル１（アタッチメント４０を固定した光ケーブル１）を固定することによって、アタッチメント４０がテンションメンバ把持部２２に対して動くことを抑制でき、テンションメンバ把持部２２による棒状部材４６の把持が緩むことを抑制できる。この結果、光ケーブル１及びアタッチメント４０をケーブル把持部材２０に強固に固定することができる。 Therefore, as shown in FIG. 1B, the worker binds the optical cable 1 to the binding portion 24 of the cable gripping member 20 using the binding band 30 (S005). The tension member gripping portion 22 is provided on the front side of the cable gripping member 20, whereas the binding portion 24 is provided on the rear side of the cable gripping member 20 (on the side opposite to the tension member gripping portion 22). Therefore, the distance between the tension member gripping portion 22 and the binding portion 24 in the front-rear direction is long. Therefore, by fixing the rod-shaped member 46 of the attachment 40 with the tension member grip 22 and fixing the optical cable 1 (the optical cable 1 with the attachment 40 fixed) with the binding part 24, the attachment 40 is fixed to the tension member grip 22. It is possible to suppress the movement relative to each other, and it is possible to suppress the grip of the rod-shaped member 46 by the tension member grip portion 22 from being loosened. As a result, the optical cable 1 and the attachment 40 can be firmly fixed to the cable gripping member 20.
　＝＝＝第２実施形態＝＝＝
　図８Ａ及び図８Ｂは、第２実施形態のアタッチメント４０の斜視図である。 === Second Embodiment ===
8A and 8B are perspective views of the attachment 40 of the second embodiment.
　第２実施形態のケーブル固定ユニット１００は、第１実施形態と同様に、前述のケーブル把持部材２０と、アタッチメント４０とを有する。第２実施形態のアタッチメント４０は、第１実施形態と同様に、締結バンド４１と、留め具４２と、棒状部材４６とを有する。第２実施形態の締結バンド４１と棒状部材４６は、第１実施形態と同様の構成である。第２実施形態では、留め具４２のベース部４３が、第１実施形態のベース部４３とは異なる形状をしている。 The cable fixing unit 100 of the second embodiment has the above-described cable gripping member 20 and the attachment 40, as in the first embodiment. The attachment 40 of the second embodiment has a fastening band 41, a fastener 42, and a rod-shaped member 46, as in the first embodiment. The fastening band 41 and the rod-shaped member 46 of the second embodiment have the same configuration as that of the first embodiment. In the second embodiment, the base portion 43 of the fastener 42 has a different shape from the base portion 43 of the first embodiment.
　第２実施形態のベース部４３は、上板部４３１と、一対の側板部４３５とにより形成された部材である。第１実施形態では左右方向から見てベース部４３がＵ字形状であるのに対し、第２実施形態では、前後方向から見てベース部４３がＵ字形状である。側板部４３５は、上板部４３１の左右の縁で折り曲げられた板状の部位である。上板部４３１の左右の縁にはそれぞれ折曲部４３３が形成されている。第２実施形態の折曲部４３３は、折れ線が前後方向に沿うように板金が折り曲げられた部位である。 The base part 43 of the second embodiment is a member formed by an upper plate part 431 and a pair of side plate parts 435. In the first embodiment, the base portion 43 has a U-shape when viewed from the left-right direction, whereas in the second embodiment, the base portion 43 has a U-shape when viewed from the front-rear direction. The side plate portion 435 is a plate-shaped portion that is bent at the left and right edges of the upper plate portion 431. Bent portions 433 are formed on the left and right edges of the upper plate portion 431, respectively. The bent portion 433 of the second embodiment is a portion where the sheet metal is bent so that the fold line extends in the front-rear direction.
　側板部４３５には、締結バンド４１を挿通させる挿通穴４３５Ａが形成されている。一対の側板部４３５の挿通穴４３５Ａに締結バンド４１を挿通させることによって、留め具４２に締結バンド４１が留められている。 The side plate portion 435 is formed with an insertion hole 435A through which the fastening band 41 is inserted. The fastening band 41 is fastened to the fastener 42 by inserting the fastening band 41 into the insertion holes 435A of the pair of side plate portions 435.
　第２実施形態のベース部４３は、第１実施形態のベース部４３と比べて、折曲部４３３が１つ増えており、また、上板部４３１から折り曲げられた部位（ここでは側板部４３５）に挿通穴４３５Ａを形成する必要があるため、形状が複雑であり、製造コストがかかる（これに対し、前述の第１実施形態では、折曲部４３３の数が少なく、挿通穴４３５Ａが不要なため、簡易な構成で締結バンド４１を留め具４２に留めることができる）。但し、第２実施形態においても、第１実施形態と同様に、ノンメタリックのテンションメンバ６をネジ２２２で締め付けずに済むため、ノンメタリックのテンションメンバ６を破損させずに、光ケーブル１をケーブル把持部材２０に固定することができる。 The base portion 43 of the second embodiment has one more bent portion 433 as compared with the base portion 43 of the first embodiment, and a portion (here, the side plate portion 435) bent from the upper plate portion 431. ), it is necessary to form the insertion hole 435A, so that the shape is complicated and the manufacturing cost is high (in contrast, in the above-described first embodiment, the number of the bent portions 433 is small and the insertion hole 435A is unnecessary. Therefore, the fastening band 41 can be fastened to the fastener 42 with a simple configuration). However, also in the second embodiment, as in the first embodiment, it is not necessary to tighten the non-metallic tension member 6 with the screw 222, so that the optical cable 1 can be gripped by the cable without damaging the non-metallic tension member 6. It can be fixed to the member 20.
　＝＝＝その他＝＝＝
　上述の実施形態は、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。本発明は、その趣旨を逸脱することなく、変更・改良され得ると共に、本発明には、その等価物が含まれることは言うまでもない。 === Others ===
The above-described embodiments are for facilitating the understanding of the present invention and are not for limiting the interpretation of the present invention. It goes without saying that the present invention can be modified and improved without departing from the spirit thereof and that the present invention includes equivalents thereof.
１　光ケーブル、１Ａ　口出し部、
２　光ファイバユニット、３　光ファイバ、
３’　光ファイバ、３Ａ’　光コネクタ、
４　バンドル材、５　外被、
６　テンションメンバ（ノンメタリック）、
６’テンションメンバ（メタリック）、
７　引き裂き紐、９’スロットロッド、
１０　光成端箱、１１　光スプリッタモジュール、１１Ａ　アダプタ、
１３　余長収納部、１５　成端トレイ、１７　ケーブル固定部、
２０　ケーブル把持部材、２１　本体部、
２２　テンションメンバ把持部、
２２１　把持ブロック、２２１Ａ　貫通穴、２２２　ネジ、
２３　固定部、２４　結束部、３０　結束バンド、
４０　アタッチメント、４１　締結バンド、
４２　留め具、４３　ベース部、
４３１　上板部、４３２　下板部、４３３　折曲部、４３４　隙間、
４３５　側板部、４３５Ａ　挿通穴、
４４　爪部材、４４Ａ　爪部、４４Ｂ　貫通穴、
４６　棒状部材、４６Ａ　固定端、４６Ｂ　自由端、
４６１　屈曲部、４６２　後部、４６３　前部、
１００　ケーブル固定ユニット 1 optical cable, 1A lead-out section,
2 optical fiber units, 3 optical fibers,
3'optical fiber, 3A' optical connector,
4 bundle material, 5 jacket,
6 tension members (non-metallic),
6'tension member (metallic),
7 tear string, 9'slot rod,
10 optical termination box, 11 optical splitter module, 11A adapter,
13 extra length storage section, 15 termination tray, 17 cable fixing section,
20 cable gripping member, 21 main body,
22 Tension member grip,
221 grip block, 221A through hole, 222 screw,
23 fixing portions, 24 binding portions, 30 binding bands,
40 attachments, 41 fastening bands,
42 fasteners, 43 base part,
431 upper plate part, 432 lower plate part, 433 bent part, 434 gap,
435 side plate portion, 435A insertion hole,
44 claw member, 44A claw portion, 44B through hole,
46 bar member, 46A fixed end, 46B free end,
461 bent portion, 462 rear portion, 463 front portion,
100 cable fixing unit

Claims (9)

  1. 　金属製のテンションメンバを把持するテンションメンバ把持部を備えたケーブル把持部材に、ノンメタリックの光ケーブルを固定するためのアタッチメントであって、
    　光ケーブルの端部に締結するバンドと、
    　前記バンドを留める留め具と、
    　前記留め具に固定され、前記光ケーブルの長手方向に延出し、前記テンションメンバ把持部に把持させることが可能な棒状部材と
    を有することを特徴とするアタッチメント。     An attachment for fixing a non-metallic optical cable to a cable holding member having a tension member holding portion for holding a metal tension member,
    A band that is fastened to the end of the optical cable,
    A fastener for fastening the band,
    An attachment, comprising: a rod-like member that is fixed to the fastener, extends in the longitudinal direction of the optical cable, and can be held by the tension member holding portion.
  2. 　請求項１に記載のアタッチメントであって、
    　前記バンドは、ホースバンドであることを特徴とするアタッチメント。     The attachment according to claim 1,
    The attachment, wherein the band is a hose band.
  3. 　請求項１又は２に記載のアタッチメントであって、
    　前記留め具は、前記光ケーブルと接触する内面に、前記光ケーブルの外被に食い込ませる複数の爪部を有することを特徴とするアタッチメント。     The attachment according to claim 1 or 2,
    The attachment includes a plurality of claw portions that are engaged with an outer cover of the optical cable on an inner surface that is in contact with the optical cable.
  4. 　請求項１～３のいずれかに記載のアタッチメントであって、
    　前記留め具は、前記光ケーブルの側に配置された上板部と、前記上板部から前記光ケーブルの側とは反対側に折り曲げられた下板部とにより形成されたＵ字状の部材を有し、
    　前記上板部と前記下板部との隙間に前記バンドの一部が配置されていることを特徴とするアタッチメント。     The attachment according to any one of claims 1 to 3,
    The fastener has a U-shaped member formed by an upper plate portion arranged on the optical cable side and a lower plate portion bent from the upper plate portion to the side opposite to the optical cable side. Then
    An attachment, wherein a part of the band is arranged in a gap between the upper plate part and the lower plate part.
  5. 　請求項４に記載のアタッチメントであって、
    　前記棒状部材の固定端によって、前記隙間からの前記バンドの脱落が防止されていることを特徴とするアタッチメント。     The attachment according to claim 4,
    An attachment characterized in that the fixed end of the rod-shaped member prevents the band from falling out of the gap.
  6. 　請求項４又は５に記載のアタッチメントであって、
    　前記棒状部材の固定端と前記下板部の端部との間の前記長手方向における間隔は、前記バンドの幅よりも短いことを特徴とするアタッチメント。     The attachment according to claim 4 or 5, wherein
    The attachment in which the gap in the longitudinal direction between the fixed end of the rod-shaped member and the end of the lower plate portion is shorter than the width of the band.
  7. 　請求項１～６のいずれかに記載のアタッチメントであって、
    　前記棒状部材は、屈曲部を有し、
    　前記長手方向から見たとき、前記テンションメンバ把持部に把持させる側の前記棒状部材の端部は、環状の前記バンドの内側に配置されていることを特徴とするアタッチメント。     The attachment according to any one of claims 1 to 6,
    The rod-shaped member has a bent portion,
    The attachment characterized in that, when viewed from the longitudinal direction, an end portion of the rod-shaped member that is to be gripped by the tension member gripping portion is arranged inside the annular band.
  8. 　金属製のテンションメンバを把持するテンションメンバ把持部を備えたケーブル把持部材と、
    　アタッチメントと
    を備え、
    　前記アタッチメントは、
    　　　　光ケーブルの端部に締結するバンドと、
    　　　　前記バンドを留める留め具と、
    　　　　前記留め具に固定され、前記光ケーブルの長手方向に延出し、前記テンションメンバ把持部に把持させることが可能な棒状部材と
    を有することを特徴とするケーブル固定ユニット。     A cable gripping member having a tension member gripping part for gripping a metal tension member,
    With attachments,
    The attachment is
    A band that is fastened to the end of the optical cable,
    A fastener for fastening the band,
    A cable fixing unit comprising: a rod-like member that is fixed to the fastener, extends in the longitudinal direction of the optical cable, and can be held by the tension member holding portion.
  9. 　金属製のテンションメンバを把持するテンションメンバ把持部を備えたケーブル把持部材を準備すること、
    　バンドと、前記バンドを留める留め具と、前記留め具に固定された棒状部材とを備えたアタッチメントを準備すること、
    　ノンメタリックの光ケーブルの端部に前記バンドを締結することによって、前記光ケーブルに前記アタッチメントを固定すること、及び
    　前記テンションメンバ把持部に前記棒状部材を把持させることによって、前記光ケーブルを前記ケーブル把持部材に固定すること
    を行うことを特徴とするケーブル固定方法。     Preparing a cable gripping member having a tension member gripping portion for gripping a metal tension member,
    Providing an attachment comprising a band, a fastener for fastening the band, and a rod member fixed to the fastener.
    By fixing the attachment to the optical cable by fastening the band to the end portion of the non-metallic optical cable, and by causing the tension member holding portion to hold the rod-shaped member, the optical cable to the cable holding member. A method for fixing a cable, characterized in that the fixing is performed.
PCT/JP2019/029182 2018-12-18 2019-07-25 Attachment, cable anchoring unit, and cable anchoring method WO2020129293A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018236276A JP2020098262A (en) 2018-12-18 2018-12-18 Attachment, cable-fixing unit, and cable-fixing method
JP2018-236276 2018-12-18

Publications (1)

Publication Number Publication Date
WO2020129293A1 true WO2020129293A1 (en) 2020-06-25

Family

ID=71102767

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/029182 WO2020129293A1 (en) 2018-12-18 2019-07-25 Attachment, cable anchoring unit, and cable anchoring method

Country Status (2)

Country Link
JP (1) JP2020098262A (en)
WO (1) WO2020129293A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0572423A (en) * 1991-09-13 1993-03-26 Sumitomo Electric Ind Ltd Method for connecting pipeline for air force feeding
JPH09318856A (en) * 1996-05-28 1997-12-12 Fujikura Ltd Optical cable fixing device
US5754724A (en) * 1996-11-08 1998-05-19 Antec Corporation Fiber optic support apparatus
US20060283619A1 (en) * 2005-06-21 2006-12-21 Adc Telecommunications, Inc. Grounding device for armored cable
US20070261880A1 (en) * 2006-05-11 2007-11-15 3M Innovative Properties Company Cable gripping device for a cable closure or terminal
JP2008032971A (en) * 2006-07-28 2008-02-14 Fujikura Ltd Post branching optical joint box
KR20110028688A (en) * 2009-09-14 2011-03-22 선일텔레콤 주식회사 Optical cable fixing device of optical cable connecting box
US20150093090A1 (en) * 2012-04-03 2015-04-02 Tyco Electronics Raychem Bvba Cable clamp and telecommunications enclosure
JP2017215438A (en) * 2016-05-31 2017-12-07 株式会社フジクラ Optical fiber cable branching member and optical fiber cable branching structure

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0572423A (en) * 1991-09-13 1993-03-26 Sumitomo Electric Ind Ltd Method for connecting pipeline for air force feeding
JPH09318856A (en) * 1996-05-28 1997-12-12 Fujikura Ltd Optical cable fixing device
US5754724A (en) * 1996-11-08 1998-05-19 Antec Corporation Fiber optic support apparatus
US20060283619A1 (en) * 2005-06-21 2006-12-21 Adc Telecommunications, Inc. Grounding device for armored cable
US20070261880A1 (en) * 2006-05-11 2007-11-15 3M Innovative Properties Company Cable gripping device for a cable closure or terminal
JP2008032971A (en) * 2006-07-28 2008-02-14 Fujikura Ltd Post branching optical joint box
KR20110028688A (en) * 2009-09-14 2011-03-22 선일텔레콤 주식회사 Optical cable fixing device of optical cable connecting box
US20150093090A1 (en) * 2012-04-03 2015-04-02 Tyco Electronics Raychem Bvba Cable clamp and telecommunications enclosure
JP2017215438A (en) * 2016-05-31 2017-12-07 株式会社フジクラ Optical fiber cable branching member and optical fiber cable branching structure

Also Published As

Publication number Publication date
JP2020098262A (en) 2020-06-25

Similar Documents

Publication Publication Date Title
MX2012004906A (en) Optical connector.
CN103026277B (en) Optical conenctor and the method assembling this optical conenctor
US20160372907A1 (en) Wire harness having fixing member
JP5093919B2 (en) Fixing member for optical connector and mounting method of optical connector
KR20090045144A (en) Cable guide
WO2020129293A1 (en) Attachment, cable anchoring unit, and cable anchoring method
EP1238301B1 (en) Fiber retaining system
JP7261153B2 (en) Attachments, attachment sets and cable fixing methods
JP6588802B2 (en) Optical connector and optical connector manufacturing method
EP1175634B1 (en) Bulbous configured fiber optic splice closure and associated methods
JP5716007B2 (en) Termination treatment kit and optical fiber cable termination method
JP2010243835A (en) Optical fiber cable branch structure, optical fiber cable branching method, and branching tool for optical fiber cable
US10359581B2 (en) Clamp member, optical connector, and manufacturing method of optical connector
JP5334302B2 (en) Optical drop cable laying tool
JP7477721B2 (en) Optical connector end structure
US11366277B2 (en) Optical fiber cable and method of manufacturing optical fiber cable
JP2005115269A (en) Optical fiber connecting member and optical fiber connecting method
WO2022210385A1 (en) Method for manufacturing optical connector
WO2022219828A1 (en) End part structure for optical connectors
JP4069032B2 (en) Optical fiber cable connection auxiliary device and optical fiber cable connection method using the auxiliary device
WO2019087585A1 (en) Optical connector, holding member, and method for manufacturing optical connector
JP2003227965A (en) Optical connector and structure for fixing part of optical fiber cord
JP2022030593A (en) Optical cable fixing device
JPH08190032A (en) Attaching and detaching tool for clamping spring
JPH11194249A (en) Optical cable drawing jig

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19899861

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19899861

Country of ref document: EP

Kind code of ref document: A1