JP2010026166A - Optical fiber connection unit and optical fiber connecting tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical fiber connection unit that reduces dust generated in installation, by continuously using an optical fiber connecting tool after assembling an optical cable to an optical fiber connector. <P>SOLUTION: The optical fiber connection unit 1 includes: an optical fiber connector 4 for connecting optical fibers between an optical cable 2 and an optical cable 3; and an optical fiber connecting tool 5. The surface side of the tool body 20 of the optical fiber connecting tool 5 is used when the optical cables 2, 3 are assembled to the optical fiber connector 4. On the reverse side of the tool body 20, there is installed a connector housing part 35 for positioning and housing the optical fiber connector 4 in which the optical cables 2, 3 are assembled. In addition, on both ends on the reverse side of the tool body 20, there are each installed cable fixing parts 38, 40 for clamping the optical cables 2, 3 that are assembled in the optical fiber connector 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an optical fiber connection unit having an optical fiber connector for connecting optical fibers to each other and an optical fiber connection jig.

As a conventional optical fiber connector, for example, as described in Patent Document 1, a lower housing having a V-groove for positioning the optical fiber, an upper housing having a pressing portion for pressing the optical fiber against the V-groove, There has been known one provided with a leaf spring for pressing the lower housing and the upper housing in a state where the V groove of the lower housing and the pressing portion of the upper housing are overlapped.
JP-A-10-170748

  By the way, when assembling an optical cable to the optical fiber connector like the above-mentioned prior art locally, a disposable optical fiber connection jig is attached to the optical fiber connector in advance for skilllessness. is there. However, after assembling the optical cable to the optical fiber connector, all the optical fiber connection jigs become garbage. For this reason, the optical fiber connecting jig is also collected and recycled, but it is time-consuming and is expected to be improved, and it is desired to reuse the optical fiber connecting jig. .

  An object of the present invention is to provide an optical fiber connection unit and an optical fiber connection jig that can reduce dust generated during installation by using an optical fiber connection jig even after an optical cable is assembled to an optical fiber connector. Is to provide.

  The optical fiber connection unit of the present invention includes an optical fiber connector for connecting optical fibers of different optical cables, and an optical fiber connection jig used when assembling the optical cable to the optical fiber connector, The fixture has a base portion for positioning the optical fiber and a pressing portion for pressing the optical fiber against the base portion, and the optical fiber connecting jig is provided on the jig main body and one surface side of the jig main body. , A wedge portion that is inserted into the boundary portion between the base portion and the holding portion when the optical cable is assembled to the optical fiber connector, and a connector housing that is provided on the other surface side of the jig body and that positions and accommodates the optical fiber connector And a pair of cable fixing portions that are provided on both sides of the connector housing portion on the other surface side of the jig body and fix the optical cable assembled to the optical fiber connector. And it is characterized in Rukoto.

  In such an optical fiber connection unit of the present invention, when two optical cables are assembled to the optical fiber connector, first, a wedge portion is inserted into a boundary portion between the base portion and the pressing portion in the optical fiber connector. In addition, an optical fiber connector is arranged on one side of the jig body in the optical fiber connection jig. Then, the boundary portion between the base portion and the pressing portion is opened by the wedge portion. In this state, the optical fiber exposed by removing the outer sheath at the tip of each optical cable is introduced into the optical fiber connector from both ends of the optical fiber connector, and the optical fibers are brought into contact with each other. Then, remove the optical fiber connector from the optical fiber connection jig and pull out the wedge part from the boundary part between the base part and the holding part, so that the base part and the holding part are closed, and each optical fiber is connected. In this state, it is fixed to the optical fiber connector. Thereafter, the optical fiber connector with the optical cable is accommodated in the connector accommodating portion on the other surface side of the jig main body in the optical fiber connection jig. And each optical cable assembled | attached to the optical fiber connector is each fixed to a cable fixing part, and the optical fiber connector with an optical cable is installed with the jig for optical fiber connection in the state.

  As a result, even when an external force is applied to the optical cable after laying, the force is supported by the cable fixing portion and is not directly applied to the optical fiber connector, so that deterioration of the optical fiber characteristics can be suppressed. After the assembly of the optical cable to the optical fiber connector is completed in this way, the optical fiber connecting jig is not discarded as it is, but effectively used as a member for protecting the optical fiber connector and the optical fiber. Become. As a result, dust generated at the time of laying can be reduced.

  Preferably, the cable fixing unit is configured to clamp and fix the optical cable assembled to the optical fiber connector, and the cable fixing unit includes the optical cable and the cable fixing unit in a state where the optical cable is clamped by the cable fixing unit. A concave portion is formed along a fastening member for fastening the two together.

  By adopting a configuration in which the optical cable assembled to the optical fiber connector is sandwiched between the cable fixing portions, the optical cable can be easily fixed. At this time, the optical cable and the cable fixing portion are fastened together by the fastening member along the concave portion of the cable fixing portion, so that the optical cable is reliably prevented from coming off from the cable fixing portion. Also, when installing an optical fiber connection jig with an optical fiber connector with an optical cable attached to an inanimate body such as a trunk cable or a pillar, the optical cable fixed to the cable fixing portion and the optical fiber connection jig By tightening and fixing the animal body and the inanimate body together with a fastening member, it is possible to prevent the optical fiber connector from moving due to an external force, thereby preventing the influence on the characteristics of the optical fiber.

  Preferably, the connector housing portion has a clearance between the optical fiber connector and the optical fiber connector when the optical fiber connector is positioned and housed in the connector housing portion. It has such a length dimension.

  In this case, in the state where the optical fiber connector with the optical cable is accommodated in the connector accommodating part of the optical fiber connecting jig, an extremely strong force is applied to the optical cable fixed to the cable fixing part, and only the cable fixing part is applied. In this case, even if the optical fiber connector is pulled, the optical fiber connector slightly moves in the arrangement direction of the cable fixing portions. Thereby, the deterioration of the characteristic of an optical fiber can fully be reduced.

  Further, the present invention is an optical fiber connecting jig used when assembling an optical cable to an optical fiber connector, and is provided on the jig main body and one surface side of the jig main body. A wedge portion that is inserted into a boundary portion between the base portion and the pressing portion, a connector housing portion that is provided on the other surface side of the jig body, and positions and accommodates the optical fiber connector, and a jig body It is provided on both sides of the connector housing portion on the other surface side, and has a pair of cable fixing portions for fixing the optical cable assembled to the optical fiber connector.

  After assembling the optical cable to the optical fiber connector using the optical fiber connector jig of the present invention, the optical fiber connector jig protects the optical fiber connector and the optical fiber as described above. It will be used effectively as a member to do. Thereby, the dust generated at the time of laying can be reduced.

  According to the present invention, it is possible to reduce dust generated at the time of laying by using the optical fiber connecting jig even after the optical cable is assembled to the optical fiber connector. Thereby, for example, it is possible to save the trouble of collecting and recycling the optical fiber connecting jig.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of an optical fiber connection unit and an optical fiber connection jig according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an embodiment of an optical fiber connection unit according to the present invention. 2 is a perspective view showing a state in which an optical cable is assembled to the optical fiber connector of the optical fiber connection unit shown in FIG. 1, and FIG. 3 is a vertical sectional view of the state shown in FIG. is there.

  In each figure, an optical fiber connection unit 1 of this embodiment includes an optical fiber connector 4 that connects an optical fiber 2a of an optical cable 2 and an optical fiber 3a of an optical cable 3, and optical cables 2 and 3 connected to the optical fiber connector 4. And an optical fiber connecting jig 5 used when assembling the optical fiber. The optical cables 2 and 3 are constituted by drop cables having different external dimensions, for example. A cable holder 6 is attached to the optical cables 2 and 3.

  The optical fiber connector 4 includes a mechanical splice 9 having a substantially rectangular cross section for mechanically connecting the optical fiber 2a exposed from the outer sheath 7 of the optical cable 2 and the optical fiber 3a exposed from the outer sheath 8 of the optical cable 3. And a housing 10 having a substantially rectangular cross section for housing the mechanical splice 9.

  As shown in FIG. 4, the mechanical splice 9 includes a base plate 12 having a V-groove 11 for positioning the optical fibers 2a and 3a, and a pressing plate for pressing the optical fibers 2a and 3a disposed in the V-groove 11 against the base plate 12. 13 and a plurality of U-shaped clamp springs 14 sandwiching the base plate 12 and the pressing plate 13.

  A plurality (four in this case) of wedge insertion recesses 15 into which wedge portions 25 (described later) of the optical fiber connecting jig 5 are inserted are provided at the boundary portion between the base plate 12 and the pressing plate 13 in the mechanical splice 9. ing. It is preferable that a chamfer for facilitating insertion of the wedge portion 25 is formed at the opening edge of the wedge insertion recess 15. The base plate 12 and the pressing plate 13 are sandwiched by the clamp spring 14 from the opposite side of the wedge insertion recess 15.

  The mechanical splice 9 is accommodated in the housing 10 such that the wedge insertion recess 15 is located on the lower side of the housing 10. The mechanical splice 9 is locked to the housing 10 by locking means (not shown). A through-hole 16 (see FIG. 8) is formed in the lower wall of the housing 10 for allowing a wedge portion 25 (described later) of the optical fiber connecting jig 5 to pass through and being inserted into the wedge insertion recess 15.

  At both ends of the housing 10, holder accommodating portions 17 that are open on the upper surface of the housing 10 and accommodate the cable holders 6 attached to the optical cables 2 and 3 are provided. Locking receiving portions 18 that engage with locking claws (not shown) of the cable holder 6 are provided on both side walls near both ends of the housing 10. Thereby, the cable holder 6 accommodated in the holder accommodating portion 17 is locked to both side walls of the housing 10.

  In addition, on both sides in the longitudinal direction of the through long hole 16 in the lower wall of the housing 10, through holes 19 through which fiber guide protrusions 26 (described later) of the optical fiber connecting jig 5 pass are formed.

  As shown in FIG. 5, the optical fiber connecting jig 5 has a long plate-shaped jig body 20. On the surface side of the jig main body 20, a connector housing portion 21 for positioning and housing the optical fiber connector 4 when the optical cables 2 and 3 are assembled to the optical fiber connector 4 is provided (see FIGS. 1 and 2). . The connector housing portion 21 includes a pair of L-shaped wall portions 22 located on one end side in the longitudinal direction of the jig body 20 and a pair of L-shape portions located on the other end side in the longitudinal direction of the jig body 20. The wall portion 23 is formed. Each wall part 22 and 23 is provided in the both-sides edge part of the jig | tool main body 20, and restrains the optical fiber connector 4 with respect to the longitudinal direction of the jig | tool main body 20, and the width direction.

  The connector housing portion 21 has a wedge projection 24 extending in the longitudinal direction of the jig body 20, and the wedge projection 24 has four wedge portions 25 inserted into the respective wedge insertion recesses 15 of the mechanical splice 9. Is provided.

  Further, the optical fibers 2 a and 3 a of the optical cables 2 and 3 are attached to the optical fiber connector 4 when the optical cables 2 and 3 are assembled to the optical fiber connector 4 on both sides in the longitudinal direction of the wedge protrusion 24 in the connector housing portion 21. Fiber guide protrusions 26 for guiding are respectively provided.

  A holder guide portion 27 for guiding the cable holder 6 holding the optical cable 2 toward the optical fiber connector 4 when the optical cable 2 is assembled to the optical fiber connector 4 is provided at one end portion on the surface side of the jig body 20. Is provided (see FIG. 2). The holder guide portion 27 is integrated with each wall portion 22 forming a part of the connector housing portion 21 and extends to one end side of the jig body 20, and one end portion of the jig body 20. It is formed with a pair of L-shaped wall portions 29 located at each corner. The holder guide part 27 has an inclined surface 30 that descends from one end of the jig body 20 toward the connector housing part 21.

  A holder guide portion for guiding the cable holder 6 holding the optical cable 3 toward the optical fiber connector 4 when the optical cable 3 is assembled to the optical fiber connector 4 is provided at the other end portion on the surface side of the jig body 20. 31 is provided (see FIG. 2). The holder guide part 31 is integrated with each wall part 23 forming a part of the connector housing part 21 and extends to the other end side of the jig body 20, and the other end of the jig body 20. And a pair of L-shaped wall portions 33 located at each corner of the portion. The holder guide portion 31 has an inclined surface 34 that falls from the other end of the jig body 20 toward the connector housing portion 21.

  In addition, the width dimension of the holder guide parts 27 and 31 is narrower than the width dimension of the connector housing part 21.

  As shown in FIGS. 5 to 7, a connector housing portion 35 for positioning and housing the optical fiber connector 4 to which the optical cables 2 and 3 are assembled is provided on the rear surface side of the jig body 20. The connector housing portion 35 includes a pair of L-shaped wall portions 36 located on one end side in the longitudinal direction of the jig body 20 and a pair of L-shape portions located on the other end side in the longitudinal direction of the jig body 20. The wall part 37 is formed. Each of the side wall portions 36 and 37 is provided with a rib (not shown) for fixing the optical fiber connector 4 to the optical fiber connecting jig 5. Each wall part 36 and 37 is provided in the both-sides edge part of the jig | tool main body 20, and restrains the optical fiber connector 4 with respect to the width direction of the jig | tool main body 20. FIG.

  The length dimension of the connector housing portion 35 in the longitudinal direction is larger than the length dimension of the optical fiber connector 4 in the longitudinal direction. For this reason, in the state where the optical fiber connector 4 is housed in the connector housing portion 35, the longitudinal direction of the jig body 20 is between the optical fiber connector 4 and the connector housing portion 35 as shown in FIG. Will have clearance. The clearance at this time is preferably about 5 mm to 10 mm. As a result, the optical fiber connector 4 is loosely fixed to the connector housing portion 35 and can be finely moved in the longitudinal direction of the jig body 20.

  A cable fixing portion 38 for fixing the optical cable 2 assembled to the optical fiber connector 4 is provided at one end portion on the back side of the jig body 20. The cable fixing portion 38 has a pair of holding walls 39 for holding the optical cable 2, and a plurality of blades for biting the outer wall 7 of the optical cable 2 and fixing the optical cable 2 on the inner wall surface of each holding wall 39. A portion (not shown) is formed. In addition, the width dimension between the holding walls 39 matches the outer dimension of the optical cable 2.

  A cable fixing portion 40 for fixing the optical cable 3 assembled to the optical fiber connector 4 is provided at the other end portion on the back surface side of the jig body 20. The cable fixing part 40 has a pair of holding walls 41 for holding the optical cable 3, and a plurality of blade parts (not shown) are formed on the inner wall surface of each holding wall 41 as well as the cable fixing part 38. ing. In addition, the width dimension between the holding walls 41 matches the outer dimension of the optical cable 3.

  Bundling bands 45 for fastening the optical cable 2 and the optical fiber connecting jig 5 together in the state where the optical cable 2 is sandwiched between the respective guide wall portions 39 (see FIG. 9)) is formed. A similar fastening notch 42 is also formed in the upper part of each guide wall 41 of the cable fixing part 40. Further, in the portions corresponding to the respective tightening cutout portions 42 on both side surfaces of the jig body 20, tightening groove portions 43 along which the binding bands 45 are formed are respectively formed.

  Next, a method for connecting the optical cables 2 and 3 using the optical fiber connection unit 1 configured as described above will be described.

  Here, in a condominium, a building, or the like, a case is assumed where a vertical trunk cable that is an assembly of a plurality of optical cables and a horizontal cable connected to each door are connected. In this case, the trunk cables are collectively laid up to the top floor of an apartment, etc., the trunk cables are cut at each floor as necessary, the optical cable 2 is taken out, and the optical cable 2 and the optical cable 3 connected to each door are connected to the optical fiber. Connected by the connector 4. Thereby, the trouble of laying the trunk cable every time can be saved, and the cable drawing work to each door can be performed in a short time and at low cost.

  First, the optical cable 2 is attached to the cable holder 6 and the outer cover 7 at the tip portion of the optical cable 2 is removed to expose the optical fiber 2a. The optical fiber 2a is adjusted so that the exposed portion of the optical fiber 2a has a predetermined length. Terminal processing such as disconnection is performed. In addition, the optical cable 3 is attached to the cable holder 6 and the outer cover 8 at the tip portion of the optical cable 3 is removed to expose the optical fiber 3a, and the end processing of the optical fiber 3a is performed in the same manner as described above.

  Further, as shown in FIG. 1, the optical fiber connector 4 is accommodated in the connector accommodating portion 21 on the surface side of the optical fiber connecting jig 5. At this time, each wedge portion 25 provided on the wedge protrusion 24 of the optical fiber connecting jig 5 passes through the through-hole 16 of the housing 10 in the optical fiber connector 4 and enters each wedge insertion recess 15 of the mechanical splice 9. Therefore, the base plate 12 and the pressing plate 13 of the mechanical splice 9 are opened against the urging force of the clamp spring 14 as shown in FIG.

  Next, the cable holder 6 to which the optical cable 2 is attached is placed on the holder guide portion 27 on the surface side of the optical fiber connecting jig 5. Then, by sliding the cable holder 6 toward the optical fiber connector 4 along the inclined surface 30 of the holder guide portion 27, the cable holder 6 with the optical cable 2 is connected to the optical fiber connector as shown in FIG. 4, the optical fiber 2 a of the optical cable 2 is guided by one fiber guide protrusion 26 of the optical fiber connecting jig 5 and introduced into the mechanical splice 9.

  The cable holder 6 to which the optical cable 3 is attached is placed on the holder guide portion 31 on the surface side of the optical fiber connecting jig 5. Then, by sliding the cable holder 6 toward the optical fiber connector 4 along the inclined surface 34 of the holder guide portion 31, the cable holder 6 with the optical cable 3 is connected to the optical fiber connector as shown in FIG. 4, the optical fiber 3 a of the optical cable 3 is guided by the other fiber guide protrusion 26 of the optical fiber connecting jig 5 and introduced into the mechanical splice 9.

  Thereby, as shown in FIG. 3, the optical cables 2 and 3 are assembled | attached to the optical fiber connector 4, and optical fiber 2a, 3a will be faced | matched.

  Next, the optical fiber connector 4 assembled with the optical cables 2 and 3 is removed from the optical fiber connecting jig 5. As a result, as shown in FIG. 4B, each wedge portion 25 of the optical fiber connecting jig 5 is removed from each wedge insertion recess 15 of the mechanical splice 9, so that the base plate 12 and the pressing plate of the mechanical splice 9 are removed. 13 is closed by the urging force of the clamp spring 14, and is fixed to the mechanical splice 9 in a state where the optical fibers 2a and 3a are connected to each other.

  Thereafter, with the optical fiber connecting jig 5 turned upside down, the optical fiber connector 4 assembled with the optical cables 2 and 3 is connected to the optical fiber connecting jig 5 as shown in FIGS. It is housed in the connector housing portion 35 on the back side. At this time, since there is a certain clearance between the optical fiber connector 4 and the connector housing portion 35 in the longitudinal direction of the optical fiber connection jig 5, the optical fiber connector 4 is accommodated in the connector housing. It can be easily fitted into the portion 35.

  Then, the optical cable 2 is pushed between the holding walls 39 from above the cable fixing portion 38 to fix the optical cable 2 to the cable fixing portion 38. Further, the optical cable 3 is pushed between the holding walls 41 from above the cable fixing portion 40, thereby fixing the optical cable 3 to the cable fixing portion 40.

  Thereafter, as shown in FIG. 9, the optical fiber connection unit 1 in which the optical cables 2 and 3 are assembled is placed on the main cable 44 so that the optical fiber connector 4 is located above the optical fiber connection jig 5. Deploy. In this state, the optical fiber connecting jig 5 is tied and fixed to the trunk cable 44 by the two binding bands 45. Specifically, each fastening notch 42 and each fastening groove 43 provided near both ends of the optical fiber connecting jig 5 so that the binding band 45 passes over the cable fixing portions 38 and 40. The optical fiber connecting jig 5 and the trunk cable 44 are fastened together with the binding band 45 and fixed together. This prevents the optical cables 2 and 3 from being detached from the cable fixing portions 38 and 40. Thus, the laying operation of the optical fiber connection unit 1 is completed.

  As described above, in the present embodiment, the optical fiber connecting jig 5 is used to provide an optical fiber by providing the connector housing portion 35 and the cable fixing portions 38 and 40 on the back side of the optical fiber connecting jig 5. After assembling the optical cables 2 and 3 to the connector 4, the optical fiber connector 4 to which the optical cables 2 and 3 are assembled can be installed on the site with being attached to the back side of the optical fiber connecting jig 5. That is, since the optical fiber connecting jig 5 can be reused instead of being disposable, dust generated during laying work can be reduced.

  At this time, since the optical cables 2 and 3 assembled to the optical fiber connector 4 are fixed to the cable fixing portions 38 and 40 of the optical fiber connecting jig 5, even if some external force is applied to the optical cables 2 and 3, the external force Is supported by the cable fixing portions 38 and 40. For this reason, it becomes difficult to apply a force directly to the optical fiber connector 4, which leads to suppression of deterioration of characteristics of the optical fibers 2 a and 3 a. Thus, since the optical fiber connecting jig 5 functions to protect the mechanical splice 9, it is not necessary to purchase a dedicated case for protecting the mechanical splice 9, and the cost can be reduced. .

  In addition, when a sufficiently strong force is applied to the optical cables 2 and 3, the force cannot be supported only by the cable fixing portions 38 and 40, and the optical fiber connector 4 may be affected. At this time, if the optical fiber connector 4 and the optical fiber connecting jig 5 are completely fixed, when the optical cables 2 and 3 are pulled, a pulling force is generated on the optical fiber connector 4, and the optical fiber is connected. 2a and 3a may be deteriorated. However, the optical fiber connector 4 accommodated in the connector accommodating portion 35 of the optical fiber connection jig 5 can be finely moved in the longitudinal direction of the optical fiber connection jig 5, and the optical cables 2 and 3 are connected to each other. Since the optical fiber connector 4 moves when pulled, it is possible to prevent the deterioration of the characteristics of the optical fibers 2a and 3a.

  Further, a notch 42 for fastening and a groove 43 for fastening are formed on both ends of the optical fiber connecting jig 5, and the optical cable 2 fixed to the cable fixing parts 38, 40 of the optical fiber connecting jig 5. 3. Since the optical fiber connecting jig 5 and the trunk cable 44 are collectively fastened and fixed by the binding band 45, the optical fiber connecting jig 5 is prevented from moving by an external force. As a result, the influence on the characteristics of the optical fibers 2a and 3a can be sufficiently reduced.

  The present invention is not limited to the above embodiment. For example, in the above embodiment, in order to correspond to the optical cables 2 and 3 having different outer dimensions, the width dimension between the holding walls 39 of the cable fixing portion 38 is matched to the outer dimension of the optical cable 2, and each holding wall of the cable fixing portion 40 is set. Although the width dimension between 41 is matched with the external dimension of the optical cable 3, it is not restricted to such a structure in particular. For example, a plurality of types of cable fixing holders having the same outer dimensions corresponding to the outer dimensions of the optical cables 2 and 3 to be used may be prepared, and these cable fixing holders may be detachably attached to the optical fiber connecting jig. .

  Moreover, in the said embodiment, although the optical cables 2 and 3 from which an external dimension differs are used, of course, you may use the optical cables 2 and 3 with an equal external dimension depending on a specification. In this case, the width dimension between the clamping walls 39 of the cable fixing part 38 and the width dimension between the clamping walls 41 of the cable fixing part 40 may be made equal.

  Furthermore, in the above-described embodiment, the optical fiber connection unit 1 to which the optical cables 2 and 3 are assembled is fastened and fixed to the trunk cable 44 using the two binding bands 45. Wires, ropes and strings may be used.

  In addition, in order to strongly fix the optical cables 2 and 3 to the optical fiber connecting jig 5, other than a structure in which the optical fiber connecting jig 5 and the optical cables 2 and 3 are fastened together with a fastening member such as a binding band 45. In addition, for example, a lid for pressing the optical cables 2 and 3 from above may be provided on the cable fixing portions 38 and 40. In this case, the lid portion may be formed of a component different from the optical fiber connecting jig, or may be integrally formed with the cable fixing portion.

  Moreover, although the said embodiment connects single optical fiber 2a, 3a, this invention is applicable also to the connection of multiple optical fibers.

  In the above-described embodiment, the “front surface” and “back surface” of the jig body 20 are described. However, they do not indicate absolute front and back, but “one surface (one surface)” as a relative relationship to the last. , “The other side (other side)”.

It is a perspective view which shows one Embodiment of the optical fiber connection unit which concerns on this invention, and is a perspective view which shows the state by which the optical fiber connector is arrange | positioned at the one surface side of the jig for optical fiber connection. It is a perspective view which shows the state by which the optical cable was assembled | attached to the optical fiber connector shown in FIG. FIG. 3 is a vertical sectional view of the optical fiber connection unit shown in FIG. 2. It is sectional drawing which shows the state by which the wedge part of the jig | tool for optical fiber connection is inserted / extracted with respect to the wedge insertion recessed part of the mechanical splice shown in FIG. It is a perspective view when the jig for optical fiber connection shown in Drawing 1 is seen from the front and back both sides. It is a perspective view which shows the state by which the optical fiber connector with an optical cable has been arrange | positioned at the other surface side of the jig for optical fiber connection shown in FIG.5 (b). It is a side view of the optical fiber connection unit shown in FIG. FIG. 8 is a vertical sectional view of the optical fiber connection unit shown in FIGS. 6 and 7. It is a perspective view which shows the state in which the optical fiber connection unit shown in FIG.6 and FIG.7 was installed on the trunk line cable.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Optical fiber connection unit, 2 ... Optical cable, 2a ... Optical fiber, 3 ... Optical cable, 3a ... Optical fiber, 4 ... Optical fiber connector, 5 ... Optical fiber connection jig, 9 ... Mechanical splice, 12 ... Base plate ( Base part), 13 ... Pressing plate (pressing part), 15 ... Wedge insertion recess, 20 ... Jig body, 25 ... Wedge part, 35 ... Connector housing part, 38 ... Cable fixing part, 40 ... Cable fixing part, 42 ... Tightening notch (concave part), 45 ... Bundling band (fastening member).

Claims (4)

An optical fiber connector for connecting optical fibers of different optical cables;
An optical fiber connecting jig used when assembling the optical cable to the optical fiber connector;
The optical fiber connector has a base portion for positioning the optical fiber, and a pressing portion for pressing the optical fiber against the base portion,
The optical fiber connecting jig is provided on a jig main body and one surface side of the jig main body, and is inserted into a boundary portion between the base portion and the pressing portion when the optical cable is assembled to the optical fiber connector. Provided on the other surface side of the jig body, and positioned on both sides of the connector housing portion on the other surface side of the jig body. An optical fiber connection unit comprising a pair of cable fixing portions that are respectively provided and fix the optical cable assembled to the optical fiber connector. The cable fixing portion is configured to sandwich and fix the optical cable assembled to the optical fiber connector,
The cable fixing portion is formed with a concave portion along which a fastening member for fastening the optical cable and the cable fixing portion together is formed in a state where the optical cable is sandwiched between the cable fixing portions. The optical fiber connection unit according to claim 1.   The connector housing portion has a clearance between the optical fiber connector and the optical fiber connector with respect to the arrangement direction of the pair of cable fixing portions when the optical fiber connector is positioned and housed in the connector housing portion. The optical fiber connection unit according to claim 1, wherein the optical fiber connection unit has a length dimension so as to have a length. An optical fiber connecting jig used when assembling an optical cable to an optical fiber connector,
A jig body;
A wedge portion that is provided on one surface side of the jig body, and is inserted into a boundary portion between the base portion and the pressing portion when the optical cable is assembled to the optical fiber connector;
A connector housing portion that is provided on the other surface side of the jig body, and that positions and houses the optical fiber connector;
A light having a pair of cable fixing portions provided on both sides of the connector housing portion on the other surface side of the jig main body and fixing the optical cable assembled to the optical fiber connector. Fiber connection jig.

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