JP2006098610A - Optical connector rosette - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical connector rosette capable of efficiently putting in order and housing both the extra length and the connecting part of an optical cable as well as safely protecting them. <P>SOLUTION: The optical connector rosette is composed of a case 4 comprising a base member 1 which has an optical cable introducing part 1<SB>l</SB>made up of an optical cable inserting groove to guide an indoor cable, an inner member 2 which can be fitted and fixed freely attachably/detachably to the base member 1, and a cover member 3 which is freely detachably fitted and fixed to the inner member 2. The inner member 2 is designed to be an optical cable processing part, by having a connector fixing part 5 which houses the optical connector of a filter-contained jacket clamping connector (b) with an optical cable (a) connected that is introduced from the optical cable introducing part 11, and by having an optical cable extra length storing part 6 in which the extra length of the optical cable is wound and housed. The inner member 2 is structured such that it is fixed freely detachably to an engaging part 1<SB>2</SB>which is formed in the base member 1 using a restraining piece 2<SB>2</SB>. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  INDUSTRIAL APPLICABILITY The present invention is used for connection at a cable connection point of an optical cable drawn indoors from the outside in a wiring section of a communication cable, particularly an optical fiber cable (hereinafter referred to as an optical cable) having an optical fiber core, The present invention relates to an optical connector rosette for an optical cable that accommodates and protects the extra length of the optical cable.

Conventionally, when connecting an optical cable having an optical fiber core, the optical cable pull-in connection is intended to protect the optical cable including the extra length of the optical cable and the connecting portion in which the cable has room in anticipation of the failure of the connection work. A cabinet is needed.
For this reason, various storage trays and storage sheets are used for storing and organizing the connection portion after the connection of the core wires and the extra length of the core wires. In particular, when drawing or connecting an optical cable, an optical cable connection extra length storage case is used to connect the optical cable cores to each other in the optical cable connection storage case and store the extra length of the cable core wires. ing. In this case, an optical cable lead-in / out part which is a part through which the optical cable is led out / in is connected to the optical fiber core wires drawn out from the optical cable which leads the optical cable out / in from the lead-in / in part or from the optical fiber for branching. 2. Description of the Related Art An optical cable termination cabinet having a connection portion storage portion in which a connection portion is stored and a core wire extra length storage portion that winds and protects and stores the extra length of the connected core wire is known. (See Patent Document 1)

Referring to FIGS. 1 and 2, the optical cable termination cabinet of Patent Document 1 will be described with reference to FIGS. 1 and 2. An optical cable lead-in wire is introduced into the optical cable connection storage case 4, and the optical cable connection storage case 4 The lead-in optical cable 5 is routed inward. (FIG. 1) This case 4 has a base case 10 and a lid case 50, and the base case 10 is divided into cable introduction portions 11, 12, a cable winding / connecting portion 13, and a connector storage portion 23. . A connector is accommodated in the connector accommodating portion 23, and an optical fiber core wire is connected by the connector. The optical fiber cores of the optical cables 3 and 5 are guided from the routing groove 17 to the cable winding / connecting portion 13 and connected by a connector, and the extra length portion is wound between the cable pressing pieces 15 and 24 and held. It is described to do. (Figure 2)
Japanese Patent Laid-Open No. 9-236711

  However, these optical cable termination cabinets are considerably improved from the viewpoint of efficiency and cost reduction, but in the field installation work in the hanging line hanging place or in-home drawing place of the optical cable having the optical fiber core wire, There are cases where a connector connection part of an optical cable field-installed connector or SC connector is accommodated, and a case where an optical fiber core wire mechanical splice or a fusion wire connection part is accommodated. It is necessary to efficiently organize and protect either the cable and / or the cable, and the conventional storage case cannot fully meet these requirements, and the core connection using a special case, cover and sheet When a processing member is required, there are many assembly parts, the configuration becomes complicated, and the optical cable, the core wire, and the core are complicated. If too much work is required to ensure the safety of the connection part and installation / removal work, problems will arise in terms of workability, handling of the core wire becomes difficult, and the internal space will be reduced if the case is made compact. In addition to making it difficult to work with connections and organizing individual wires, it is difficult to store the extra length of the core wire, and the fit of the extra length of the core wire is worsened, and stress is applied to the core wire, resulting in optical loss of the core wire. The transmission characteristics will be adversely affected, and there will be problems such as the efficiency and efficiency of the core connection work cannot be improved.

The present invention has been made in view of these conventional circumstances, and can efficiently organize and store both the optical cable extra length and the optical cable connection portion in the field installation work of the optical cable, and can safely protect the optical cable. Connection and re-storing work can be performed easily, and when connecting and wiring optical cables, it is possible to use the optical cable jacket connector and on-site connector separately, making it easy to handle and replace optical cables. Safe connection work can be performed efficiently and simplifies on-site wiring work, and installation and wiring work can be performed with uniform work content without variation in the optical cable connection part, greatly improving reliability, and operating cost We will also try to reduce this.
Further, in the present invention, the optical cable and the extra length of the optical cable can be accommodated in the installation work of the optical cable in the field, and the optical cable is not slackened, and the optical fiber is not bent or a small arc is not generated. Loss is lost, transmission characteristics are kept good, safe wiring is possible, and the optical cable and drop cable storage structure is simplified, easy to handle, and easy to store and organize. An object of the present invention is to provide an optical connector rosette that can be safely stored.

  Furthermore, in the present invention, a factory-installed termination cable (an optical cable in which an SC connector is pre-installed on one or both ends of a specified length of termination cable (a cord cable in an optical cable)) and a field-installed connector are provided. The installed optical cable is used, and in a detached house or apartment house, a DF pattern (providing an optical fiber core wire from the inside of a dedicated trader's station to another business station's equipment) and an unbundled pattern (from a dedicated trader's station) It can be easily installed separately from those that provide part of the signal band of the optical fiber core to other operators), and a filter is provided at the demarcation point so that testing can be performed on the dedicated contractor station side. When storing the optical cable SC connector or field-attached connector or other optical connector connections at the site, Each optical cable can be handled in an easy-to-handle manner, and the optical cable handling operation, optical cable connection and switching laying can be done easily.Each optical cable is easy to handle, and safe connection work can be performed efficiently and workability can be greatly improved. Since there is no need for an extra storage member, it can be used as an optical connector rosette for a low-cost optical cable, and furthermore, installation and wiring work can be performed with uniform work contents without variation by workers in the field work. The reliability can be improved, the number of work steps can be reduced, and the work cost can be reduced.

  In order to solve the above-mentioned problems, an optical connector rosette according to the present invention includes a base member having an optical cable introduction part for introducing an optical cable, an inner member that can be removably inserted into and fixed to the base member, and an attachment / detachment to the inner member. A connecting part for housing an outer-grip connector or a field-attached connector or other optical connector to which an optical cable introduced from an optical cable introduction part is connected. An optical cable processing section comprising a fixing section and an optical cable surplus length storage section for winding and storing the optical cable surplus length, wherein the inner member is detachably attached to a locking section formed on the base member The structure is fixed so that the DF pattern and the unbundled pattern can be easily installed.

  Further, in the optical connector rosette of the present invention, a base member having an optical cable introduction part for introducing an optical cable, an inner member that can be removably inserted into and fixed to the base member, and a removably inserted and fixed to the inner member A cover member, and the inner member is housed in a connection portion fixing portion for storing a field-mounted connector or other optical connector to which an optical cable introduced from the cable introduction portion is connected, and in the connection portion fixing portion. An automatic shielding mechanism including a shutter that opens and closes a connection surface of a connector socket of an optical connector, a spring that biases the shutter in one direction, and an optical cable extra length storage unit that winds and stores the optical cable extra length An optical cable processing section, wherein the inner member is detachably fixed to a locking section formed on the base member. And then, in which the danger-free and safe use configuration of blindness by a laser beam by the leakage prevention of the laser beam.

  Further, the optical connector rosette of the present invention has a substantially cylindrical case as a whole, and the inner member is separated on both sides by a partition plate, one of which is used for connecting a jacket holding connector or an on-site connector. The inner member is rotated in the base member at every predetermined angle as an optical cable processing unit configured as an optical cable surplus length storage unit capable of collectively storing an optical cable surplus length as a connection portion fixing portion to which an adapter can be attached. It is characterized in that the position can be set and the direction of the optical connector can be changed and deployed.

  Further, according to the present invention, the inner member of the optical connector rosette is provided with a guide wall having an uneven surface in the optical cable path on the connection portion fixing portion side on which the outer cover holding connector or the field-attached connector or other optical connector can be mounted. A locking piece having a fitting claw projecting on the optical cable extra length storage portion side at the outer peripheral side edge of the partition plate, and an optical cable gripping portion formed by pushing the optical cable formed with an optical cable insertion opening surface, and a guide support piece The engaging piece is configured to be engaged with and disengaged from the engaging hole and the engaging recess recessed in the side wall of the base member, and the engaging plate has a fitting claw on the connection portion fixing portion side at the outer peripheral side edge of the partition plate. It is characterized in that it is configured to be able to engage with and disengage from the engaging recess of the cover member.

  Furthermore, the optical connector rosette of the present invention is characterized in that the inner member has a fitting tube portion that holds the optical cable extra length around a central portion of one side of the partition plate so as to be wound in a loop shape, and an outer periphery of the partition plate. It is preferable that the optical cable extra length storage portion is divided into a substantially cylindrical storage portion that is formed by a locking piece and a guide support piece protruding from the side edge.

  According to the present invention, in the optical connector rosette, the inner member projects a fitting tube portion formed of a cylindrical rib that winds the extra length of the optical cable at one side center portion of the partition plate, and a tip portion of the fitting tube portion A conical head is formed on the base member, and it can be detachably fitted to a fitting tube portion projecting from the inner surface of the facing base member.

  Furthermore, in the optical connector rosette according to the present invention, the connecting portion fixing portion to which the outer cover holding connector of the inner member or the field-attached connector or other optical connector can be mounted is formed of a concave groove into which the flange of the adapter is inserted and fitted. It is characterized by being configured to be deployed facing the opening formed in the member, and capable of connecting and installing the outer gripping connector plug.

  The optical connector rosette of the present invention includes a base member having an optical cable introduction part for introducing an optical cable, an inner member that can be detachably fitted to the base member, and a cover member that can be detachably fitted to the inner member. The inner member is wound with a connector fixing part for housing an outer connector or other optical connector connected to an optical cable entering from an optical cable introduction part, and an optical cable extra length. And an optical cable surplus storage part for storing the optical cable, and an optical cable processing part, wherein the inner member is detachably fixed to the locking part formed on the base member. Optical cable for field installation work because it has a configuration that can be installed easily corresponding to the bundle pattern. The connecting part and the extra length of the optical cable can be efficiently organized and protected for safe protection, and the extra length of the optical cable can be stored well and no slack in the optical cable. The transmission loss can be kept good without generating optical loss without being generated, and safe wiring is possible.

  Further, in the optical connector rosette of the present invention, a base member having an optical cable introduction part for introducing an optical cable, an inner member that can be removably inserted into and fixed to the base member, and a removably inserted and fixed to the inner member And a cover member, and the inner member stores the connection portion fixing portion for storing the optical connector of the field-installed connector to which the optical cable introduced from the optical cable introduction portion is connected, and the connection portion fixing portion. An automatic shielding mechanism including a shutter that opens and closes a connection surface of a connector socket of an optical connector, a spring that biases the shutter in one direction, and an optical cable extra length storage unit that winds and stores the optical cable extra length An optical cable processing unit, wherein the inner member is detachably fixed to a locking portion formed on the base member. In addition to preventing leakage of laser light, there is no risk of blindness due to laser light, and it can be used safely, and the base member is selectively fitted with an inner member when housing a connector for an optical cable connector or sheath connector Since it can be deployed, it can be handled correspondingly in the field, and the optical cable can be easily connected or re-stored.

  In addition, the optical connector rosette according to the present invention simplifies the storage structure of the optical cable connecting part and the extra length of the optical cable together with the base member having the optical cable introducing part for introducing the optical cable so that it can be easily handled and stored and organized, and is extremely compact. The connecting part can be stored safely, and the type of use can be selected by the arrangement of the inner member, so that it can be wired in a form that responds to on-site specifications and can be handled in the optical connector closet, and the optical cable can be connected and converted. Can be easily and safely connected efficiently and can greatly improve workability, eliminate the need for extra storage members, and can be used as an optical cable closet for low-cost optical cables. Installation and wiring work with uniform work content without variation by workers at It is possible, it is possible to increase the reliability, it can be smaller man-hour of work attained even a reduction in operating costs.

  Furthermore, in the optical connector rosette of the present invention, the entire case is substantially cylindrical, and the inner member is separated on both sides by a circular partition plate, one of which is an outer grip connector or a field-attached connector or the like. The inner member is formed in the base member as an optical cable processing part configured as an optical cable surplus length storage part capable of collectively storing an optical cable surplus length. The position of the connector can be changed and deployed by changing the position at a predetermined angle, so it is extremely compact, the connector orientation can be set in any direction, and it is compatible with the installation equipment It can be easily handled, and it is equipped with a mechanism to prevent the inner member from lifting or lifting and a mechanism to prevent it from opening. This contributes to the protection of the optical cable, and the cover member can be opened and the inner member removed, and the optical cable connection work and the connection status can be checked, confirmed, adjusted, etc. very easily and safely. Since the optical cable processed inner member selected for the base member and cover member is used, the optical cable specifications can be diversified, and the optical cable extra length can be handled and stored with a radius of curvature secured, so the optical cable extra length is absorbed. Therefore, the transmission characteristics are not adversely affected.

  In addition, in the present invention, the optical cable processing section of the connecting portion and the extra length of the optical cable is provided on different surfaces after the core wire is connected, so that the extra length of the optical cable can be accommodated, and there is room for winding and storing. Therefore, the optical cable core is not bent excessively, and an arc-shaped portion with a small radius of curvature is not generated and can be stored safely. In addition, the optical cable and the connection part are individually housed in the inner member, and can be organized in the base member by placing it in the case, making it easy to connect and update or replace the inner member. The handling characteristics for the re-storing operation can be improved, and the connection portion can be easily readjusted and repaired, so that the workability can be greatly improved.

  Further, according to the present invention, the optical cable processing and the access pattern selection processing can be performed using the inner member, so that the wiring can be neatly organized, and the optical cable is led out to the optical connector rosette when the optical cable is branched or pulled in. The access to the optical cable connection portion can be simplified due to the freedom of insertion, and management and assembly / disassembly operations can be easily performed, and high reliability can be obtained by storing the optical cable connection portion and storing the extra length of the optical cable.

To illustrate embodiments of the present invention with reference to the drawings, optical cable optical connector rosette in the example of FIGS. 1 to 5 (unbundling pattern), the optical cable inlet section 1 ₁ for example indoor cables introducing optical cable a is introduced a base member 1 with the optical cable inlet portion 1 ₁ consisting of the insertion groove, an inner member 2 which can be detachably fitted挿固wear to the base member 1, a cover member 3 which can be detachably fitted挿固wear the inner member 2 It consists comprised case 4, the inner member 2 is connected portion fixing portion 5 for accommodating the optical connector of the filter containing jacket gripping connectors b connecting a cable a to be introduced from the optical cable inlet portion 1 _1, for example optical cable The connecting portion fixing portion 5 for connecting the end portion to which the SC connector is mounted via the SC adapter c and the optical cable extra length are wound and stored. Be one obtained by the optical cable unit and a cable excess length storage section 6, is removably fixed to the inner member 2 to the locking piece 2 ₂ the base member 1 engaging portion 1 ₂ formed by As a configuration. (FIGS. 1 and 2)

The case 4 is formed into a whole cylindrical shape by a resin material or the like, but the base member 1 is formed into a cylindrical casing having a substantially cylindrical shape and a peripheral side wall having an open front surface, and is formed on the inner surface of the peripheral side wall. open the appropriate intervals and a locking portion 1 ₂ and the fitting recess 1 ₃ each other to form a plurality, to allow mounting the engaging piece 2 ₂ and the guide support pieces 2 ₃ of the inner member 2, further locking portion collision with multiple provision of tool insertion hole 1 ₄ penetrating in and out to the peripheral side wall so as to serve as the 1 _2, the fitting cylinder 1 ₅ for挿固wearing fitting the inner member 2 to the inner surface central portion of the base member 1 It is set up.
Further, as shown in FIG. 3, the base member 1 is provided with a fitting cylinder portion ₁₅ protruding from a central portion of the inner surface of the bottom wall so that the inner member 2 can be fitted and supported, and a mounting hole provided in the bottom wall surface. 15 is used by being attached to a wall surface by a fixing screw 16.
Incidentally, the optical cable a and the inner member 2 outside the filter containing the connected gripped connectors b or site with connector b ₁ and optical cable excess length of the optical cable a accommodating process, the base member engagement portion 1 ₂ formed in 1 to allow anchoring, further Yes to help protect the optical cable covered with a cover member 3 to the inner member 2, also, the tool insertion hole 1 ₄ penetrating in and out to the peripheral side wall, such as a driver communicates with the engaging portion 1 ₂ used to remove the inner member 2 incorporated in the base member 1 removed from the locking portion 1 ₂ and push the locking piece 2 ₂ by inserting the tool from the base member 1 easily.

As shown in FIGS. 3 and 5, the inner member 2 has a connection portion fixing portion 5 on which one of both side surfaces of the circular partition plate can be fitted with an SC adapter c for connecting the filter-clad connector b. As an optical cable processing section configured in an optical cable surplus length storage section 6 that can collectively store the optical cable surplus length, the inner member 2 is rotated within the base member 1 to be positioned at a predetermined angle so as to have a filter jacket. The direction of the grip connector b can be changed and deployed.
Then, the connecting portion fixing portion 5 side, the insertion opening of the optical cable guide wall 2 ₄ having an irregular surface to the optical cable passageway opposite upright is formed, the optical cable gripping portion 7 may cable pushing the cable and the provided with a guide rib 8 to fit supporting the cover member 3, projecting locking portion 2 ₁ with a fitting hole to the outer peripheral edge of the partition plate of the inner member 2, the engaging claw portion of the cover member 3 31 It is configured to be able to engage and disengage to ₁ . Further, in the optical cable excess length accommodating portion 6 side of the inner member 2, the then projecting toward deployed on the outer peripheral side edges and a locking piece 2 ₂ and the guide support piece 2 ₃ with the fitting hole side wall of the base member 1 may disengage a form the engaging protrusion into the locking portion 1 ₂ and the fitting recess 1 ₃ a configuration, the further upright the fitting tube 2 ₅ in the central portion of the partition plate of the inner member 2 and form that can fit connected to fitting cylinder 1 ₅ of the base member 1 has a configuration that can be used as a wound portion of the optical cable excess length.
In this case, by forming a conical head at the tip portion of the fitting tubular portion 1 ₅ and fitting cylinder 2 _5, facing the base member 1 and the fitting tube portions projecting from the inner surface of the inner member 2 It is preferable to adopt a structure for preventing the optical cable from being caught at the time of mounting.

The said optical cable gripping unit 7, the bulging portion for preventing leakage uneven portion or the cable in the guide wall 2 ₄ provided further provided guide ribs 8 along the cable insertion direction prevent edge leakage cable, to ensure gripping of the optical cable Therefore, it is preferable to form a partition so that the optical cable does not sag. Furthermore the base member 1 includes a connecting portion fixing portion 5 for accommodating a filter-containing jacket gripping connector b of the connecting portion of connecting the optical cable entering from the optical cable inlet section 1 _1, optical cable excess length for housing by winding the optical cable excess length The inner member 2 provided with the storage portion 6 can be attached and detached. For example, the inner member 2 can be detached and attached by one-touch fitting claws, fitting holes, or concave and convex portions. 2 can also fulfill the function of preventing misalignment.

In addition, the inner member 2 includes a fitting cylinder portion ₂₅ formed of a cylindrical rib that holds an optical cable extra length around a central portion of one side of the partition plate and is wound in a loop shape, and an outer peripheral side edge of the partition plate. well to the form configured in a substantially circular shape of the housing part which defines a cable excess length accommodating portion 6 by the engaging piece 2 ₂ and the guide support piece 2 ₃ projecting from the can, fitted spirally wound optical Buru excess length forming a conical head at the tip portion of the engagement cylinder part 2 _5, you can freely fitted detachably to the fitting cylinder 1 ₅ projecting from the inner surface of the base member 1 facing the cable catch prevention structure when mounted It is preferable that the optical cable be separated and organized, the optical cable can be bent from the lead-in / out of the optical cable, and twisting can be prevented when storing the core, and high reliability can be obtained with safe and high-density storage. It is good to make it.
Further, the connection portion fixing portion 5 to which the optical connector of the filter-equipped outer-grip connector b of the inner member 2 can be mounted includes a housing portion including a concave groove 9 into which the flange of the adapter c is inserted and fitted, and the cover member 3 a configuration that is deployed to face the opening portion 3 ₂ which is formed on, and to allow connection establishment of SC connector plug d contributes to the protection of the optical cable.

As described above, the entire case 4 including the inner member 2 is formed in a substantially cylindrical shape, which can facilitate the optical cable wiring process in the optical connector rosette, and the inner member 2 is formed in a cylindrical shape. Therefore, the optical cable surplus length accommodating portion 6 is designed so that the optical cable a can be wound and held in a smoothly curved loop shape so that transmission characteristics are not adversely affected. For example, the inner member 2 to be installed can secure an allowable minimum radius of curvature, and can handle and store an optical cable. Various connection portions such as a connection connector b such as a filter-covered connector b or an on-site connector b _{1 can be used.} Can be stored, and the optical cable extra length and the connecting portion can be stored together.

Further, in the embodiment shown in FIGS. 6 to 10 (DF pattern), the base member 1 and the cover member 3 is used in common ones precedent equivalent configurations, as the inner member 2, the optical cable inlet portion 1 ₁ The connecting portion fixing portion 5 for storing the optical connector of the on-site connector b ₁ to which the optical cable a to be introduced is connected, and the connector socket of the optical connector stored in the connecting portion fixing portion 5, for example, the connection surface of the SC connector adapter c ₁ An optical cable processing unit is provided with an automatic shielding mechanism 12 including a shutter 10 that opens and closes, a spring 11 that biases the shutter in one direction, and an optical cable surplus storage unit 6 that winds and stores the optical cable surplus length. The inner member 2 is detachably fixed to the engaging portion formed on the base member 1, and the cover member 3 is attached to the inner member 2. And fixed to the structure, it is to be able to use safely without the risk of blindness by a laser beam by the leakage prevention of the laser beam.

In this case, the shutter 10 is rotatably attached to the partition plate of the inner member 2 by pivot 13, to pivot so as to open and close the connection surface of the connector adapter c ₁ of the optical connector housing in the connection portion fixing portion 5 The automatic shielding mechanism 12 can be automatically shielded by the urging spring 11. The urging spring 11 is preferably arranged so as to be pivoted about the pivot 13 and both ends of the urging spring 11 are latched by the shutter 10 and the supporting portion 14 so that the shutter 10 is urged in one direction.

Moreover, the inner member 2 used in this embodiment, the decorated base member 1, the connection portion fixing portion having a fitting groove 9 to plug the flange of the site with the connector b ₁ of connector adapter c ₁ on the front side And an accommodating portion in which an optical cable surplus length accommodating portion 6 that is provided with the fitting cylinder portion ₂₅ and that can be accommodated while ensuring an allowable minimum curvature radius of the optical cable a is formed on the back side of the connecting portion fixing portion 5; You should do it.
In this case, the in the inner member 2, two or more places the locking portions 2 ₂ and the guide support pieces 1 ₃ so as to be routed curvature radius circle of the optical cable in diameter around the fitting tube 2 ₅ Interval It is preferable that the optical cable a can be routed and held by opening it in a circular arc shape, or a partition rib is attached.
Incidentally, as the connecting portion fixing portion 5 in the inner member 2, can be deployed and optical cable excess length accommodating such indoor cable, optical cable processing unit which is a connecting portion fixed portion 5 of the cable connection portion of the field with the connector b ₁ It is considered to adopt a form that can simplify the handling as described above.

  The cover body 3 is attached to and detached from the inner member 2, but may be fitted and covered with the base member 1 of the case 4, and the cover member 3 is covered so that the closed state can be maintained. In particular, in the closed state, the base member 1 is provided with an engagement uneven portion that functions to prevent the cover from being opened, and an inclined surface portion that serves as a cover lifting prevention mechanism, and is locked at each position to cover the base member 1. Without detaching the member 3, the optical cable termination can be securely stored and protected including the protection of the optical cable, and can be used as an optical connector rosette for dust prevention, waterproofing, and crime prevention. With respect to the mounting relationship with No. 1, it can be attached and detached with one touch without using screws.

In the optical connector rosette according to this embodiment, the case for accommodating the optical cable connecting portion of the filter containing jacket gripping connector b of the optical cable, to the case of accommodating the cable connecting portion of the field with the connector b ₁ of the optical cable, The base member 1 is used by replacing the inner member 2. For example, when the indoor cable and the drop cable are connected, the inner member 2 is attached to the connecting portion fixing portion 5 with the filter-equipped grip connector b or the field-attached connector b ₁ in the form of FIG. 1 or FIG. Used as a processing unit.
For example, keep in mounting by a fixing screw 16 advance the base member 1 to the wall surface as shown in FIG. 11, the optical cable a introduced from the cable introducing portion 1 ₁ of the base member 1 in the required cable length, filter the cable end Connect the connection part of the in-jacket-grip connector b or the field-attached connector b ₁ , place the connection part in the connection part fixing part 5 of the inner part 2, hold the optical cable a with your finger, and hold it on the cable gripping part 7 To do.

Next, the optical cable a is turned around the back surface of the connecting portion fixing portion 5, the optical cable surplus length is wound around the fitting cylinder portion ₂₅ of the inner member 2, and the extra length processing is performed. the part 2 ₅ fitted into the fitting tube 1 ₅ of the base member 1, mounting the inner member 2 to the base member 1. At this time, since the orientation of the filter-equipped jacket connector b or the field-attached connector b ₁ can be set at an arbitrary angle, for example, every 45 degrees, the direction of the connector is appropriately adjusted and fixed. Is good.
Then, the engaging portion 2 ₁ and the engaging claw portion 3 ₁ a is connected mounted to the mounting base member 1 and held by fitting the opening 3 of the cover member 3 corresponding covered with a cover member 3 to the inner member 2 ₂ jacket gripping connectors b or field with the connector b ₁ is disposed, said outer gripped connectors b or field with the connector b ₁ is connected to the factory with termination cable connectors data plug d is connected connected optical connector rosette Can be used as

In this case, as shown in FIG. 12, in this optical connector rosette, a drop cable C branched from a closure B of an outdoor overhead cable A passes through an optical connector cabinet D provided in a detached house or an apartment house. DF pattern or unbundled pattern connected to case 4 of optical connector rosette provided in a detached house or apartment house as an indoor cable and connected to equipment E such as ONU equipment with a built-in filter in the house since used as, if derive the indoor cable from the optical cable inlet portion 1 ₁ of the base member 1, debit wiring easily processed, cable switching, to be able to conveniently also the wiring processing operations such as the exchange, this The wiring workability can be improved.
Further, in this embodiment by connecting the optical cable a introduced optical cable inlet portion 1 ₁ of the base member 1 to the scene with the connector b _1, the connection portion, which can hold to accommodated by fitting the connection portion fixing portion 5 By connecting the SC connector plug d of the factory-attached termination cable to the connector adapter c ₁ of the field-attached connector b ₁ , cable processing of effective wiring in the field can be performed.
In this optical connector rosette, the case where the jacket holding connector b or the on-site connector b ₁ is applied has been described. However, there are various other optical connectors such as an MT-RJ connector, an MT connector, and an FC connector. It can be chosen and used.

The optical connector rosette in the one use condition of the Example of this invention is shown, (a) is the perspective view of the isolation | separation state, (b) is a front view of the inner member. The assembled state of the example of FIG. 1 is shown, (a) is its front view, and (b) is its side view. The base member used by the example of FIG. 1 is shown, (a) is the front view, (b) is the top view, (c) is the longitudinal cross-sectional view. 1 shows an inner member used in the example of FIG. 1, (a) is a front view thereof, (b) is a left side view thereof, (c) is a plan view thereof, and (d) is a longitudinal sectional view taken along line XX. is there. The inner member of the example of FIG. 4 is shown, (a) is the back view, (b) is the top view. The optical connector rosette in one use condition of the other example of the Example of this invention is shown, (a) is the perspective view of the isolation | separation state, (b) is a front view of the inner member. The assembled state of the example of FIG. 6 is shown, (a) is the front view, (b) is the side view. The state which removed the shutter with the inner member used by the example of FIG. 7 is shown, (a) is the front view, (b) is the top view, (c) is the longitudinal cross-sectional view in the YY line. The inner member used by the example of FIG. 7 is shown, (a) is the front view, (b) is the right view, (c) is the bottom view. The inner member used by the example of FIG. 9 is shown, (a) is the back view, (b) is the right view. 6 shows a wiring assembly state used in the example of FIG. 6, (a) is a separated perspective view of the optical cable connected state, (b) is a separated perspective view of the optical cable extra length accommodation state, and (c) is the optical cable extra length accommodation. It is a back side perspective view of a state. It is the example of system explanatory drawing of the one use state using the Example of this invention, (a) is an example applied to a detached house, (b) is an example applied to an apartment house.

Explanation of symbols

a Optical cable
b Outer gripping connector
b _{1 On-} site connector
c SC adapter
c ₁ connector adapter d SC connector plug 1 base member
1 ₁ Optical cable introduction part 1 ₂ Locking part 1 ₃ Fitting recess
1 ₄ Tool insertion hole 1 ₅ Fitting cylinder
2 Inner material
2 ₁ Locking part 2 ₂ Locking piece 2 ₃ Guide support piece 2 ₄ Guide wall 2 ₅ Fitting cylinder part
3 Cover member 3 ₁ Engagement claw 3 ₂ Opening 4 Case
5 Connection fixing part 6 Optical cable extra length storage part
7 Optical cable grip
8 Guide rib 9 Groove 10 Shutter 11 Biasing spring
12 Automatic shielding mechanism 13 Axis 14 Engagement portion 15 Mounting hole
16 Fixing screw A Aerial cable B Closure C Drop cable D Optical connector cabinet E Equipment

Claims (8)

  The case is composed of a base member having an optical cable introduction part for introducing an optical cable, an inner member that can be removably inserted into and fixed to the base member, and a cover member that can be removably inserted into and fixed to the inner member. The inner member includes an SC connector connected to an optical cable introduced from the optical cable introduction portion or a connection portion fixing portion that accommodates an optical connector and other optical connectors; an optical cable extra length accommodating portion that winds and accommodates the extra length of the optical cable; An optical connector rosette characterized in that the inner member is detachably fixed to a locking portion formed on the base member.   The optical connector rosette according to claim 1, wherein the inner member includes a shatter that is openable and closable on a connection surface of a connector socket of a field-attached connector that is housed in a connection portion fixing portion, and a spring that biases the shatter in one direction. An optical connector rosette comprising an automatic shielding mechanism.   3. The optical connector rosette according to claim 1, wherein the entire case is substantially cylindrical, and the inner member is separated on both sides by a partition plate, one of which is an SC connector or a field-attached outer cover. The inner member is rotated in the base member as a connecting portion fixing portion to which an adapter for connecting the connector can be mounted, and the other as an optical cable processing portion configured as an optical cable surplus length storage portion capable of collectively storing an optical cable surplus length. An optical connector rosette characterized in that the connector direction can be changed and arranged by setting the position at predetermined angles.   4. The optical connector rosette according to claim 3, wherein said inner member is provided with a guide wall having an uneven surface in a cable passage on a connection portion fixing portion side to which an SC connector, an on-site connector or other optical connector can be mounted, An optical connector rosette comprising a cable gripping part formed by pushing a cable in which an insertion opening surface is formed.   5. The optical connector rosette according to claim 3, wherein the inner member has a locking piece having a fitting claw protruding from the outer peripheral side edge of the partition plate toward the optical cable extra length storage portion side, a guide support piece, The engaging piece is configured to be engaged with and disengaged from the engaging hole and the engaging recess recessed in the side wall of the base member, and the engaging plate has a fitting claw on the connection portion fixing portion side at the outer peripheral side edge of the partition plate. An optical connector rosette characterized in that the optical connector rosette is configured to be able to engage with and disengage from the engaging recess of the cover member.   6. The optical connector rosette according to claim 3, 4 or 5, wherein the inner member winds and holds the extra length of the optical cable around a central portion on one side of the partition plate so as to be wound in a loop shape. An optical connector rosette characterized in that the optical cable extra length storage section is defined by a portion, and a locking piece and a guide support piece protruding from the outer peripheral side edge of the partition plate.   The optical connector rosette according to claim 3, 4, 5, or 6, wherein the inner member is formed of a cylindrical rib that winds an optical fiber surplus length around a central portion on one side of the partition plate. An optical cable at the time of mounting can be detachably fitted to the fitting cylinder part protruding from the inner surface of the base member facing the conical head. An optical connector rosette characterized by having a structure for preventing pinching.   8. The optical connector rosette according to claim 3, claim 4, claim 6, or claim 7, wherein the connecting portion fixing portion to which the SC connector of the inner member or the field connector or other optical connector can be attached is an adapter. An optical connector rosette comprising a concave groove for inserting and fitting a flange of the outer cover, wherein the outer connector gripping connector plug can be connected and installed by facing the opening formed in the cover member.

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