Abstract: An optical cable gripping member which prevents the kinds of splicing devices from being diversified, thereby enabling reduction of the labor of component management and lowering of the production cost to be realized is obtained. In a cable gripping member 5 which is to be attached to a splicing device 1 to hold an optical fiber cable 121 from its outer sheath, a spacer 17 which fills a gap between one inner wall surface 15a of a tubular space 15 through which the optical fiber cable 121 is to be passed, and the spacer 17 in the tubular space 15 is formed monolithically with one end of the one inner wall surface 15a in a manner that the spacer 17 is attachable to and detachable from the one inner wall surface 15a. The spacer 17 is attached to or detached from the one inner wall surface 15a, thereby enabling a plurality of optical fiber cables of different sizes to be held.

Abstract: An optical fiber connector 1 is provided with a mechanical splice section 3 for mechanically securing and connecting optical fibers 2 to each other. The mechanical splice section 3 includes a base plate 5 having a V-groove 4 for positioning the optical fibers 2 and a pressing plate 6 for pressing the optical fibers 2 against the base plate 5. A wedge inserting recessed section 8 is arranged at a boundary portion between the base plate 5 and pressing plate 6. The optical fiber connector 1 is provided with a wedge member 9 having a wedge section 13 adapted to be inserted into the wedge inserting recessed section 8 for opening the base plate 5 and pressing plate 6 from each other; a wedge insertion releasing member 10 for pressing the wedge member 9, so as to take the wedge section 13 out of the wedge inserting recessed section 8; and a housing 11 for covering the mechanical splice section 3, wedge member 9, and wedge insertion releasing member 10.

Abstract: An optical connector according to an embodiment of the present invention comprises (a) a ferrule incorporating a short fiber; (b) a mechanical splice having a holding part and a fixing part, and adapted so that the fixing part mechanically fixes the short fiber extending from the ferrule held by the holding part, and an optical fiber in an optical cable to butt the short fiber; (c) an outer housing having a housing part in which the mechanical splice is located, and a pair of flexible arms located on both sides of the housing part, the pair of arms each being provided with a locking claw at a tip; and (d) a jacket fixture for fixing a cable jacket, the jacket fixture being coupled to the mechanical splice so that the cable jacket is inserted therein.

Abstract: To provide an optical connecting member capable of positioning and connecting a coated fiber by a simple connecting work with high precision, and a method of fitting the same.

Abstract: [Problem] To provide an optical cable connecting closure and optical interconnection system which can easily respond to changes in required connection functions if any. [Solving Means] An optical cable connecting closure 118 has a case 121, while a plurality of connecting modules 123 are arranged (stored) so as to be erected with respect to the bottom face of a closure main body 119 along the width direction in a module storing section 122 of the case 121. The connecting module 123 has a rectangular parallelepiped board-like module main body 127, while a plurality of MT connectors 128, 129 are attached in a vertical row to one end face of the module main body 127. In the module main body 127, an optical connecting section 130 for connecting the MT connectors 128, 129 to each other is arranged. The module storing section 122 can store a different kind of connecting module having a connecting configuration (function) different from that of the connecting module 123.

Abstract: There are provided an optical fiber cutting method and a cutting apparatus which can easily cut a coated optical fiber without a step of removing a coating from the optical fiber. It includes a clamp which holds the coated optical fiber, having a glass fiber and the coating, on both sides of a portion-to-be-cut, a disk-shaped blade member which moves at the portion-to-be-cut in a direction orthogonal to an axis of the optical fiber to cut the coating and to provide a slit into the glass fiber, and a support which presses, with a predetermined pressing force, the portion-to-be-cut from an opposite side of the blade member with respect to the portion-to-be-cut when cutting the coating and providing the slit into the glass fiber. A head of the support is formed with a groove along a sliding direction of the blade member.

Abstract: An optical cable gripping member which prevents the kinds of splicing devices from being diversified, thereby enabling reduction of the labor of component management and lowering of the production cost to be realized is obtained. In a cable gripping member 5 which is to be attached to a splicing device 1 to hold an optical fiber cable 121 from its outer sheath, a spacer 17 which fills a gap between one inner wall surface 15a of a tubular space 15 through which the optical fiber cable 121 is to be passed, and the optical fiber cable 121 in the tubular space 15 is formed monolithically with one end of the one inner wall surface 15a in a manner that the spacer 17 is attachable to and detachable from the one inner wall surface 15a. The spacer 17 is attached to or detached from the one inner wall surface 15a, thereby enabling a plurality of optical fiber cables of different sizes to be held.

Abstract: The stranded optical cable 10 includes a plurality of stranded multicore optical cables 12 and a cable sheath 16 covering the multicore optical cables 12, each multicore optical cable 12 including at least two of optical units 13 as a pair and a unit sheath 14 covering the optical units 13, each optical unit 13 being formed by bundling a plurality of optical fibers. And, parts of the cable sheath corresponding to both ends of the stranded optical cable 10 are removed to expose the multicore optical cables 12 certain lengths so that the optical connectors 21 are connected to the multicore optical cables 12, respectively.

Abstract: An optical connector according to an embodiment of the present invention comprises (a) a ferrule incorporating a short fiber; (b) a mechanical splice having a holding part and a fixing part, and adapted so that the fixing part mechanically fixes the short fiber extending from the ferrule held by the holding part, and an optical fiber in an optical cable to butt the short fiber; (c) an outer housing having a housing part in which the mechanical splice is located, and a pair of flexible arms located on both sides of the housing part, the pair of arms each being provided with a locking claw at a tip; and (d) a jacket fixture for fixing a cable jacket, the jacket fixture being coupled to the mechanical splice so that the cable jacket is inserted therein.

Abstract: An optical fiber branch cable is provided that comprises a branch portion disposed stably with respect to a multi-core optical fiber cable of a trunk line from which branching is performed, that is excellent in handleability as a cable, and that exhibits high workability. In the optical fiber branch cable of the invention, in a middle of a multi-core optical fiber cable 2 of a trunk line, a branch portion 11 is disposed. The branch portion 11 has: a base member 16 which is attached so as to cover a tensile-strength wire 9 in a portion where a cable jacket 10 of the multi-core optical fiber cable 2 is removed away; a multi-core optical connector 30 which is connected to the tip end of a tape unit 4 drawn out from the multi-core optical fiber cable 2; an extra-length housing portion 18 which houses an extra length of the tape unit 4 to which the multi-core optical connector 30 is connected; and a connector attaching portion 19 to which the multi-core optical connector 30 is attachable in a plural number.

Abstract: It is an object to obtain an optical connector capable of implementing a more reduction in a cost of a work for carrying out an assembly into a site optical fiber, and a method of assembling the optical connector. An almost sheet-like protecting member 17 for transmitting a light in a predetermined refractive index is stuck to a tip surface of a ferrule 3 having a fiber inserting hole 15 penetrating therethrough with the fiber inserting hole 15 covered, and an optical fiber 14 positioned by a positioning mechanism 5 to be coupled to a rear part of the ferrule 3 has a tip surface inserted through the fiber inserting hole 15 of the ferrule 3 to abut on the protecting member 17 with an elastic force.

Abstract: To provide an optical connecting member capable of positioning and connecting a coated fiber by a simple connecting work with high precision, and a method of fitting the same.

Abstract: It is an object to obtain an optical connector capable of executing an assembling work safely and easily without causing a problem, for example, a breakage of an end face of a short optical fiber provided in a ferrule when assembling a site optical fiber, and a method of assembling the optical connector. In an optical connector having a ferrule 3 including a short optical fiber 12 and a positioning mechanism 5 for placing and fixing an optical fiber 14 to be connected to the short optical fiber 12 in a predetermined position, an end face of the short optical fiber 12 and that of the optical fiber 14 are matched with each other through an almost sheet-like protecting member 17 for transmitting a light in a predetermined refractive index and the optical fiber 14 is positioned by an application of an elastic force to the short optical fiber 12 side.

Abstract: An optical connector in which works of attaching an incorporated optical fiber to a ferrule, removing a coating of the tip end side of a coated optical fiber, and attaching an optical connector to the coated optical fiber can be made more efficient, and the transmission characteristics can be prevented from being lowered in the optical connector, and a method of attaching the optical connector to a coated optical fiber are provided. An optical connector 101 includes: a ferrule 140 into which a glass fiber 121 that is obtained by peeling a coating 124 of a coated optical fiber 120 is to be inserted; a fixing portion 130 which fixes the coated optical fiber 120 inserted into the ferrule 140; and a coating-removing portion 110 which removes the coating 124 from an end portion of the coated optical fiber 120, by means of a force of inserting the coated optical fiber 120 into the optical connector 101.

Abstract: An optical fiber cutting device and method, and optical fiber cutting blade member in which excellent workability is obtained by a simple configuration, and a cost reduction can be attained are provided.

Abstract: An optical connector has a simple structure and a method of attaching an optical fiber cord to the connector is easy. The connector 1 includes: a plug part 2 which has a capillary 5 provided at the front and containing a built-in optical fiber 6 and which includes a mechanical splicing portion 7 capable of allowing an optical fiber 51 to be inserted from the rear so as to be fixed therein; a caulking stand 35 capable of holding a sheath by radially contracting in a state in which the optical fiber cord 50 is inserted therein; a caulking ring 45 provided outside the cylindrical portion 36 of the stand 35 so as to hold the tension member 52 between the ring 45 and the stand 35; and a coupling body 20 provided behind the plug part 2 and accommodating the stand 35 and the ring 45.

Abstract: The present invention relates to an optical connector and an optical connector assembling method allowing simplification of assembly, improvement of reliability, and lower prices. The optical connector comprises a connector plug for holding a coated optical fiber and a connector socket for holding a coated optical fiber. The connector plug has a fiber holding portion disposed in a plug housing, and a fiber inserting hole is provided in the fiber holding portion. A fiber deflection space for allowing deflection of the coated optical fiber, when the coated optical fibers are butted, is provided in the plug housing. The connector socket has a fiber holding portion disposed in a socket housing, and a fiber inserting hole is provided in the fiber holding portion. A fiber deflection space for allowing deflection of the coated optical fiber, when the coated optical fibers are butted, is provided in the socket housing.

Abstract: An optical fiber connector 1 is provided with a mechanical splice section 3 for mechanically securing and connecting optical fibers 2 to each other. The mechanical splice section 3 includes a base plate 5 having a V-groove 4 for positioning the optical fibers 2 and a pressing plate 6 for pressing the optical fibers 2 against the base plate 5. A wedge inserting recessed section 8 is arranged at a boundary portion between the base plate 5 and pressing plate 6. The optical fiber connector 1 is provided with a wedge member 9 having a wedge section 13 adapted to be inserted into the wedge inserting recessed section 8 for opening the base plate 5 and pressing plate 6 from each other; a wedge insertion releasing member 10 for pressing the wedge member 9, so as to take the wedge section 13 out of the wedge inserting recessed section 8; and a housing 11 for covering the mechanical splice section 3, wedge member 9, and wedge insertion releasing member 10.

Abstract: [Summary] [Problem] To provide an optical cable connecting closure and optical interconnection system which can easily respond to changes in required connection functions if any. [Solving Means] An optical cable connecting closure 118 has a case 121, while a plurality of connecting modules 123 are arranged (stored) so as to be erected with respect to the bottom face of a closure main body 119 along the width direction in a module storing section 122 of the case 121. The connecting module 123 has a rectangular parallelepiped board-like module main body 127, while a plurality of MT connectors 128, 129 are attached in a vertical row to one end face of the module main body 127. In the module main body 127, an optical connecting section 130 for connecting the MT connectors 128, 129 to each other is arranged. The module storing section 122 can store a different kind of connecting module having a connecting configuration (function) different from that of the connecting module 123.

Abstract: There are provided an optical fiber cutting method and a cutting apparatus which can easily cut a coated optical fiber without a step of removing a coating from the optical fiber. It includes a clamp which holds the coated optical fiber, having a glass fiber and the coating, on both sides of a portion-to-be-cut, a disk-shaped blade member which moves at the portion-to-be-cut in a direction orthogonal to an axis of the optical fiber to cut the coating and to provide a slit into the glass fiber, and a support which presses, with a predetermined pressing force, the portion-to-be-cut from an opposite side of the blade member with respect to the portion-to-be-cut when cutting the coating and providing the slit into the glass fiber. A head of the support is formed with a groove along a sliding direction of the blade member.