JP2003344665A - Optical cable splicer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical cable splicer which facilitates wire splicing of an optical cable, and useful for adequacy in wiring work, while satisfying characteristics of optical communication by maintaining minimum allowable curvature of the optical cable. <P>SOLUTION: A cable housing case body 4 has a cable introducing part 1 for introducing the optical cable (a), a core excess length housing 2 for winding and housing the core excess length of the optical cable (a), and an adaptor housing 3 formed by communicating with the housing 2. A cover 5 forming an opening 5<SB>1</SB>for threading the optical cable is disengageably fitted and equipped therein. Also, a cable gripper 6 for gripping the optical cable (a) is detachably fitted and arranged in the cable introduction 1. An adaptor 8, in which a connector 7 for interconnecting each end of the optical cable (a) is fitted and inserted, is fittably arranged in the adaptor housing 3. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical fiber cable (hereinafter referred to as a cable) for a communication line that is wired indoors and outdoors such as an office, a factory, a house of a general residence, and other buildings. The present invention relates to an optical cable connector for fixing to a furniture surface, which is capable of safely performing a cable arrangement process after connection with a terminal device for optical communication.

[0002]

2. Description of the Related Art Generally, inside a building, an optical communication terminal device used indoors is connected to a cable introduced on the wall surface by indoor wiring, and information communication such as the Internet, telephone line, cable TV and other Although a communication line can be used, it must be taken into consideration when installing an optical communication terminal device that a wiring cable sufficiently satisfies the characteristics of optical communication, particularly the signal transmission characteristics of an optical fiber cable.

[0003]

However, there are various conventional arrangements of optical communication terminal equipment indoors such as offices and homes, and even if one connection from an optical outlet is taken, inconvenience occurs in wiring, The communication characteristics cannot be satisfied, optical communication loss often causes incompatibility with terminal processing, the allowable minimum curvature of the optical fiber cable cannot be maintained, wiring work is complicated, and the terminal equipment is arranged. Not only is it necessary to carry out wiring work for each move or extension such as conversion or maintenance / repair, which is not only troublesome, but it cannot be maintained safely so that there is no optical signal loss, and the wiring of cables is difficult. However, there were problems such as poor appearance. The present invention is intended to eliminate these conventional drawbacks, facilitates the wiring connection work of the optical cable, maintains the allowable minimum curvature of the optical cable and sufficiently satisfies the characteristics of optical communication, and reduces the man-hours for wiring work. You can also fix the cable,
The purpose of the present invention is to provide a reliable optical cable connector at a low cost, which can remarkably simplify the handling of connection wiring to optical communication terminal equipment and also help to optimize wiring work.

[0004]

DISCLOSURE OF THE INVENTION The present invention is directed to a cable introducing section for introducing an optical cable, a core extra length accommodation section for winding and accommodating an extra core length of an optical cable entering from the cable introducing section, and the core. A cable housing case body having an adapter housing formed in communication with the extra wire length housing is detachably fitted with a cover body having an opening for inserting an optical cable, and the cable introducing portion is also provided. A cable gripping tool for gripping an optical cable is detachably fitted to the cable gripping tool, and the cable gripping tool is formed of plastic that elastically clamps the optical cable inserted into the main body of the cable storage case. A member is integrally molded at both ends of the connecting piece, and both locking members are engaged and held so as to be engageable and disengageable, and each end of the optical cable is connected to the adapter housing portion. With the adapter that can be inserted and removed freely, it is possible to perform wiring connection work without optical signal loss, the number of wiring work is small, and the cable can be securely fixed with simple operation, ensuring safety It enables high and reliable optical cable connection.

Further, according to a feature of the present invention, in the cable housing case main body, an extra length of the core wire is provided which is provided with a cylindrical guide rib for holding an optical cable wound inside the case and holding a locking piece for holding the optical cable. A signal transmission is provided by providing a storage part, and further arranging a pair of cable introduction parts having tapered side walls in parallel, and projecting a plurality of locking claws on the inner surface of each side wall to hold the cable gripping tool. The characteristics can be sufficiently satisfied, and the optical cable can be easily attached and detached at the time of connection or disconnection, and the optical cable can be arranged in a mechanically stable state.

[0006]

DETAILED DESCRIPTION OF THE INVENTION The process will be described below with reference to the example of FIG. 1 to FIG. 4 an example of the optical cable connector according to the present invention, the cable introduction part 1 a pair juxtaposed with the opening 1 ₁ of introducing an optical cable a The optical fiber extra length storage unit 2 that winds and stores the optical fiber extra length of the optical cable a entering from the cable introduction unit 1.
If, on the cable storage case body 4 having a pair of adapter housing portion 3 which is formed in communication with the core wire excess length storage section 2, disengageably the cover body 5 forming the insertion opening 5 ₁ of the optical cable a The cable introduction part 1
A cable gripper 6 for gripping the optical cable a is detachably fitted to the adapter, and an adapter 8 into which a connector 7 to which the respective ends of the optical cable a are mutually connected is fitted is detachably fitted into the adapter housing portion 3. It has an outerlet configuration deployed in.

[0007] In this example, the cable in the housing case main body 4, the cylindrical guide rib 2 ₁ for holding the optical cable a housed wound therein as shown in FIGS. 2 and 3
When, is provided with the core wire excess length accommodating portion 2 projecting from the locking piece 2 ₂ optical cable retainer, wherein the locking piece 2 ₂ is deployed at a suitable distance to the side wall along the winding circuit, The floating and detachment of the optical cable a are prevented.

Further, the cable storage case body 4
Is a cable entry portion 1 having opposing sidewalls tapered with the opening 1 ₁ a pair juxtaposed, the engagement claw 1 ₂ to each opposing inner surface of the side wall a plurality protrude, holding the cable gripper 6 It's easy. The cable housing case body 4 is provided with a screw hole 9 for mounting a wall surface and a magnet 10 for adhering to an iron material surface such as a steel desk or a panel, or an adhesive member such as a double-sided adhesive tape for fixing a wall surface. Or it is easy to install on a desk. In this case, the magnet 10 may be provided with the inner surface of the cylindrical guide rib 2 ₁ cable containing case body 4, also preferably provided in place of the back side of the cable storage case body 4 by an adhesive member.

The cover body 5 is a lid body formed of a plastic material for covering the surface opening of the cable storage case body 4, and the cover body 5 is provided in a locking hole 11 provided in the cable storage case body 4. It is preferable to dispose the locking claws 12 provided on the opposite sides so as to be engaged and disengaged so that the cover body 5 can be easily attached and detached.

[0010] In the cable storage case body 4 having the above configuration, the optical cable a entering from the opening 1 ₁ of the cable entry unit 1, the locking member 6 of the cable gripper 6
_1, 6 ₁ in a state of being sandwiched fitted to the cable entry portion 1, the core wire extra length is core excess length accommodating portion 2 of the cylindrical guide rib 2
_It is wound around ₁ and passes through the core passage, and the locking piece 2 ₂
The connector 7 such as a plug connected to the end of the optical cable is fitted and arranged in the adapter 8 which is pressed by and is supported by the connector housing portion 3. If the connector 7 of the connection terminal from the communication device of the terminal device is inserted into the connector 7, the connection is made in a state where the signal transmission characteristics are sufficiently satisfied.

Then, the wiring work can be carried out by a simple operation of attaching the cable housing case body 4 to the wall surface of the building through the screw holes 9 with the mounting screws, and the cover body 5 is attached to the cable housing case body 4. In addition to covering and protecting the connection means so that it is not exposed, it can be used in a state that looks good on the appearance, and at the time of maintenance or cable separation, the connection means can be easily attached and detached for convenience of wiring. You can

[0012] As the cable gripper 6, as shown in FIG. 4, a U-shaped locking member ₆₁ which is formed by a plastic for holding the optical cable a to be inserted into the cable housing case main body 4 elastically, A structure in which 6 ₁ is integrally formed at both ends of a connecting piece 6 ₂ and locking claws 6 ₃ are formed on the inner surface of the opposite surface so as to form an uneven surface, and both locking members 6 ₁ and 6 ₁ are detachably fitted and held. and then, it is adapted to be firmly held the is fitted to the cable entry portion 1 of the cable storage case body 4 by engaging claws 1 _1. In this case, to form a interpolating guide recess 6 ₄ fitted on one of the locking member _61, and fitted into facing the other of the locking member _61, often to the to sandwich the optical cable a, also on the other hand, or by projecting the engaging claw 6 ₅ on both outer surfaces of the locking member ₆₁ in engaged with the locking claws 1 ₂ cable entry portion 1 slip, is good to help removal prevention .

Further, the adapter 8 is composed of a through hollow cylindrical body having openings at both ends as shown in FIG.
SC-type connector or MT-type connector 7 of a communication line connecting portion having a plug or a receptacle connected to the end of
A plurality of adapters that can be removably connected are arranged in parallel in the cable storage case body 4, but positioning pieces 8 ₁ and 8 ₁ that fit and support the adapter storage portion 3 are provided on the outer surface of the cylindrical body so as to project. It is preferable that the connector 7 is equipped so as not to fall off from the cable storage case body 4, and the connector 7 is fitted into the through hole. In this case, provided with a locking hole ₈₂ of the stopper ₇₁ projecting from the connector 7 is fitted to the adapter 8, connection maintaining such communications line connection failure does not occur are as reliably. Further, since a plurality of the adapters 8 are arranged in parallel in the cable storage case body 4, access to the core wire connecting portion can be simplified and
Wiring management and assembly / separation work can be performed easily, and reliability is improved.

[0014] As described above, from the one side of the cable entry portion 1 put optical cable a, without reducing the curvature of the core wire can surplus length cord winding housing of the cable to the cable entry portion 1 ₁ If the gripping tool 6 is interposed, the core wire can be prevented from rubbing against the cable storage case body 4, and tensile impact can be surely prevented, and safe wiring can be performed.

[0015]

According to the present invention, the wiring connection work of the optical cable is facilitated, the allowable minimum curvature of the optical cable is maintained, and the characteristics of the optical communication can be sufficiently satisfied. It can be fixed to a few cables and can be connected and connected to optical communication terminal equipment significantly, which contributes to proper wiring work and allows proper wiring, and the cable gripper can be used as a cable storage case body. A locking member having a U-shaped cross-section formed of plastic that elastically clamps the optical cable inserted through is integrally formed on both ends of the connecting piece, and both locking members are detachably fitted and held as a structure. Since it can be fitted and supported in the cable introduction part, it is possible to reliably prevent tensile impact on the core wire when the optical cable passes through the cable introduction part of the cable storage case body, and each wiring Interference can be safe wiring that was without. Furthermore, the extra length of the core of the optical cable can be stored well, there is room for winding and storing the core, and the holding of the core is also buffered, so there is no slack in the core, In addition to eliminating optical loss and maintaining good transmission characteristics without causing excessive bending or small arcs in the optical fiber core, the terminal can be detachably connected with a simple operation when using optical communication. The installation and wiring work can be done safely and safely.

[Brief description of drawings]

FIG. 1 is a perspective view of an optical cable connector according to an embodiment of the present invention in a separated state.

2 shows the cable storage case body and the cover body of the example of FIG. 1, (a) is a front view of the cable storage case body showing the inside by removing the cover body, (b) shows the cover body in a separated state The side view, and (c) are plan views thereof.

3 shows a cross-sectional view of the example of FIG. 2, where (a) is a vertical cross-sectional view taken along the line AA, (b) is a cross-sectional view taken along the line BB,
(C) is a longitudinal sectional view showing an assembled state.

4A and 4B show the cable gripper of the example of FIG. 1, in which FIG. 4A is a plan view thereof, FIG. 4B is a longitudinal sectional view thereof, and FIG. 4C is a front view thereof, and FIG. FIG.

5A and 5B show an adapter in a state where the connector of the example of FIG. 1 is fitted and inserted, in which FIG. 5A is a vertical sectional view and FIG.

[Explanation of symbols]

a Optical cable 1 Cable introduction section 1 ₁ Opening section 2 Extra core length storage section 3 Adapter storage section 4 Cable storage case body 5 Cover body 5 ₁ Opening section 6 Cable gripping tool 6 ₁ Locking member 7 Connector 7 ₁ Stopper 8 Adapter 8 ₁ Positioning Piece 9 Screwing Hole 10 Magnet 11 Locking Hole 12 Locking Claw

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yasuhiko Shinmachi             4-35-3 Yoyogi, Shibuya-ku, Tokyo Co., Ltd.             Within Japan Recom (72) Inventor Takahiro Aoki             4-35-3 Yoyogi, Shibuya-ku, Tokyo Co., Ltd.             Within Japan Recom (72) Inventor Toshiaki Takeda             5-23-8 Nishigotanda, Shinagawa-ku, Tokyo Stock market             Company Seiden (72) Inventor Eiji Araki             2-3-1, Otemachi, Chiyoda-ku, Tokyo             Inside Telegraph and Telephone Corporation (72) Inventor Sadaaki Takano             2-3-1, Otemachi, Chiyoda-ku, Tokyo             Inside Telegraph and Telephone Corporation F-term (reference) 2H038 CA34 CA36 CA37                 4E352 AA08 AA16 BB05 CC01 CC11                       CC52 CC56 DD02 DD05 DD10                       DR02 DR13 DR24 DR33 DR34                       DR39 FF01 FF09 GG10 GG12                       GG23                 5G355 AA10 BA01 BA11                 5G375 AA18 CA02 CA19 DB16 DB24

Claims (2)

[Claims] 1. A cable introducing part for introducing an optical cable, a core extra length storing part for winding and storing a core extra length of an optical cable entering from the cable introducing part, and a communication to the core extra length storing part. A cable gripping tool that detachably engages and disposes a cover body having an opening for inserting an optical cable in a cable storage case body having an adapter storage portion formed as described above, and grips the optical cable in the cable introducing portion. The cable gripping tool is equipped with a locking member having a U-shaped cross section, which is formed of plastic and elastically clamps the optical cable inserted into the cable storage case body, at both ends of the connecting piece. An adapter that is formed and has a structure in which both locking members are removably fitted and retained, and connectors into which the respective ends of the optical cable are connected to each other are fitted into the adapter housing portion. An optical cable connector characterized in that it is arranged so that it can be inserted and removed freely. 2. The cable housing case body is provided with a pair of cable introducing portions having tapered side walls,
The optical cable connector according to claim 1, wherein a plurality of locking claws are provided on the inner surface of each of the opposing side walls so that the cable gripping tool is fitted and supported.