Abstract: A cord clamp includes: two plate sections; and a base plate section that connects one end sections of the plate section in the longitudinal direction. A step a surface of which is shifted in a direction intersecting a plane formed by a cord insertion direction in which a cord passes between the plate sections and the longitudinal direction is provided on each of an inside surface formed on the side where the two plate sections face each other and an outside surface formed on an opposite side of the inside surface, a location in the direction where the step of the inside surface is provided and a location in the direction where the step of the outside surface is provided are equal to or greater than a plate thickness of the plate section and equal to or less than three times the plate thickness thereof.

Abstract: An optical fiber rack includes: a rack part on which a plurality of termination units arranged along an up-down direction are located; an optical fiber housing part which has a back plate and in which an extra length wiring part in a plurality of optical fiber bundles connected to each of the plurality of termination units is housed; and a plurality of first dividing bodies for dividing locations of the optical fiber bundles in the optical fiber housing part, the plurality of first dividing bodies being attached to the back plate so as to be arranged along the up-down direction in the optical fiber housing part. The first dividing body has a holding part for holding the corresponding optical fiber bundle, and the holding part of the first dividing body provided lower in the up-down direction is positioned to be separated from the back plate.

Abstract: A tray unit includes: a plurality of trays each of which has a protrusion at a side end portion thereof; and a pair of frames vertically provided with a plurality tiers of rail portions, the plurality of tiers of rail portions accommodating the plurality of trays in a slidable manner in a horizontal direction. And the rail portion at each tier include a clamp on a surface facing the side end portion of the tray, the clamps in the plurality of tiers are aligned in a vertical direction, the clamp has an opening to which the protrusion is fittable, and when the side end portion of the tray move to a predetermined position with respect to the rail portion, the clamp is elastically deformed in the vertical direction of the rail portion, and the protrusion is fitted into the opening.

Abstract: An optical fiber rack includes a rack part on which a plurality of termination units arranged in a vertical direction are located, a first optical fiber housing part in which extra length wiring parts of a plurality of first optical fibers connected with each of the plurality of termination units are housed, a second optical fiber housing part in which an extra length wiring part of a second optical fiber connected with any of the termination units is housed, and a partition plate partitioning the first optical fiber housing part from the second optical fiber housing part.

Abstract: A termination unit located on a rack part of an optical fiber rack includes a housing a plurality of first optical fibers located in the housing, the plurality of first optical fibers being fusion spliced to a multi fiber cable introduced from an outside of the optical fiber rack, an adapter group including a plurality of adapters in a line in the housing, the plurality of adapters being respectively connected to the plurality of first optical fibers on an inside of the housing and being respectively connected to a plurality of second optical fibers on an outside of the housing, and an optical fiber passing part through which at least one optical fiber is configured to pass, the optical fiber passing part being located in at least one of: the adapter group, and between the housing and the adapter group in an arrangement direction.

Abstract: A termination unit to be located on a rack part of an optical fiber rack includes a housing, a plurality of first optical fibers located in the housing and fusion spliced to a multi fiber cable introduced from an outside of the optical fiber rack, a plurality of external connection adapters located in a line in a first direction, and in which the plurality of first optical fibers are respectively connected to the plurality of external connection adaptors on an inside of the housing, a guide part located on one side surface of the housing crossing the first direction, and extending in a second direction crossing the first direction, and a fixing member attached to the one side surface of the housing, and to which the multi fiber cable is fixed. The fixing member is movably attached along the guide part.

Abstract: An optical fiber rack includes: a rack part on which a plurality of termination units arranged along an up-down direction are located; an optical fiber housing part which has a back plate and in which an extra length wiring part in a plurality of optical fiber bundles connected to each of the plurality of termination units is housed; and a plurality of first dividing bodies for dividing locations of the optical fiber bundles in the optical fiber housing part, the plurality of first dividing bodies being attached to the back plate so as to be arranged along the up-down direction in the optical fiber housing part. The first dividing body has a holding part for holding the corresponding optical fiber bundle, and the holding part of the first dividing body provided lower in the up-down direction is positioned to be separated from the back plate.

Abstract: An optical fiber rack includes a rack part on which a plurality of termination units arranged in a vertical direction are located, a first optical fiber housing part in which extra length wiring parts of a plurality of first optical fibers connected with each of the plurality of termination units are housed, a second optical fiber housing part in which an extra length wiring part of a second optical fiber connected with any of the termination units is housed, and a partition plate partitioning the first optical fiber housing part from the second optical fiber housing part.

Abstract: A tray unit includes: a plurality of trays each of which has a protrusion at a side end portion thereof; and a pair of frames vertically provided with a plurality tiers of rail portions, the plurality of tiers of rail portions accommodating the plurality of trays in a slidable manner in a horizontal direction. And the rail portion at each tier include a clamp on a surface facing the side end portion of the tray, the clamps in the plurality of tiers are aligned in a vertical direction, the clamp has an opening to which the protrusion is fittable, and when the side end portion of the tray move to a predetermined position with respect to the rail portion, the clamp is elastically deformed in the vertical direction of the rail portion, and the protrusion is fitted into the opening.

Abstract: A termination unit to be located on a rack part of an optical fiber rack includes a housing, a plurality of first optical fibers located in the housing and fusion spliced to a multi fiber cable introduced from an outside of the optical fiber rack, a plurality of external connection adapters located in a line in a first direction, and in which the plurality of first optical fibers are respectively connected to the plurality of external connection adaptors on an inside of the housing, a guide part located on one side surface of the housing crossing the first direction, and extending in a second direction crossing the first direction, and a fixing member attached to the one side surface of the housing, and to which the multi fiber cable is fixed. The fixing member is movably attached along the guide part.

Abstract: A termination unit located on a rack part of an optical fiber rack includes a housing a plurality of first optical fibers located in the housing, the plurality of first optical fibers being fusion spliced to a multi fiber cable introduced from an outside of the optical fiber rack, an adapter group including a plurality of adapters in a line in the housing, the plurality of adapters being respectively connected to the plurality of first optical fibers on an inside of the housing and being respectively connected to a plurality of second optical fibers on an outside of the housing, and an optical fiber passing part through which at least one optical fiber is configured to pass, the optical fiber passing part being located in at least one of: the adapter group, and between the housing and the adapter group in an arrangement direction.

Abstract: An optical fiber rack includes a rack part on which a plurality of termination units are located, a first optical fiber housing part in which extra length wiring parts of a plurality of first optical fibers are housed, a second optical fiber housing part in which an extra length wiring part of a second optical fiber connected with any of the plurality of termination units is housed, a partition plate partitioning the first optical fiber housing part from the second optical fiber housing part, and, a plurality of optical fiber guides attached to the partition plate and arranged in the vertical direction. The optical fiber guide comprises a first guide part housing the first optical fibers toward to the first optical fiber housing part, and a second guide part housing the second optical fiber passing through an opening provided in the partition plate.

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 connector assembling jig and an optical connector assembling method includes an optical connection. The optical connector assembling jig includes a base and a guide. The base is provided in a longitudinal direction with an accommodation groove for accommodating an optical fiber, and a rear pressing member for restraining a rear part of the optical fiber accommodated in the accommodation groove. The rear part is set apart from an embedded fiber. The guide has a front holding portion for holding a front part of the optical fiber accommodated in the accommodation groove. The front part is near the embedded fiber, and the guide is capable of moving in the longitudinal direction. Moving the base toward the optical connector causes the intermediate section of the optical fiber to separate from the accommodation groove and bend. By moving the base further toward the optical connector, a buffered fiber in the optical fiber can be connected to the embedded fiber.

Abstract: There is provided an optical-connector-equipped optical fiber cable introducing method, according to which an introducing operation through an existing electrical wiring conduit or the like can be implemented, without damaging an optical fiber cable to be introduced, and with a small towing force. When inserting into a conduit 39 an optical-connector-equipped optical fiber cable 31 in which a grip 19 having a function of engaging with and disengaging from an adaptor is fitted onto a plug frame 9 that covers a ferrule, an introducing operation of the optical-connector-equipped optical fiber cable is implemented by towing and inserting the optical-connector-equipped optical fiber cable 31, from which at least the grip 19 is detached, through the conduit 39 and, thereafter, the grip 19 is attached to the plug frame 9.

Abstract: Provided is a connected optical fiber that is stable and has minimal connection loss even in a high-temperature or low-temperature environment, without involving an excessive amount of labor in the optical fiber connection process, and also provided is a method for assembling a connected optical fiber. The connected optical fiber includes a first optical fiber, a second optical fiber, and a mechanical splice, an end face of the first optical fiber and an end face of the second optical fiber being placed end to end and mechanically connected in the mechanical splice. In this connected optical fiber, at least one end face among the end face of the first optical fiber and the end face of the second optical fiber is formed having a convex curved surface shape in a direction angled with respect to a surface perpendicular to an axis of the optical fiber that has the end face.

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: An optical connector assembling jig and an optical connector assembling method includes an optical connection. The optical connector assembling jig includes a base and a guide. The base is provided in a longitudinal direction with an accommodation groove for accommodating an optical fiber, and a rear pressing member for restraining a rear part of the optical fiber accommodated in the accommodation groove. The rear part is set apart from an embedded fiber. The guide has a front holding portion for holding a front part of the optical fiber accommodated in the accommodation groove. The front part is near the embedded fiber, and the guide is capable of moving in the longitudinal direction. Moving the base toward the optical connector causes the intermediate section of the optical fiber to separate from the accommodation groove and bend. By moving the base further toward the optical connector, a buffered fiber in the optical fiber can be connected to the embedded fiber.

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: There is provided an optical-connector-equipped optical fiber cable introducing method, according to which an introducing operation through an existing electrical wiring conduit or the like can be implemented, without damaging an optical fiber cable to be introduced, and with a small towing force. When inserting into a conduit 39 an optical-connector-equipped optical fiber cable 31 in which a grip 19 having a function of engaging with and disengaging from an adaptor is fitted onto a plug frame 9 that covers a ferrule, an introducing operation of the optical-connector-equipped optical fiber cable is implemented by towing and inserting the optical-connector-equipped optical fiber cable 31, from which at least the grip 19 is detached, through the conduit 39 and, thereafter, the grip 19 is attached to the plug frame 9.