Abstract: An optical connector includes: a ferrule that has a connection end surface in which fiber holes are formed side by side in a first direction; a biasing member configured to bias the ferrule in a second direction in which the fiber holes extend; a housing configured to accommodate the biasing member and part of the ferrule; a coupling configured to be attached to an outer side of the housing such that the coupling is configured to move in the second direction; and a boot configured to engage with the coupling and configure to move integrally with the coupling. The boot is disposed, as viewed from the second direction, inside an outer contour of the coupling.

Abstract: An optical connector that connects to an adapter includes a ferrule that has a fiber hole into which an optical fiber is inserted, a housing that accommodates at least a part of the ferrule, an outer coupling that surrounds the housing and slides with respect to the housing, an inner coupling that moves with respect to the outer coupling within a predetermined range, and a biasing unit that biases the inner coupling toward a front side with respect to the outer coupling. The inner coupling moves toward a rear side with respect to the outer coupling by coming into contact with the adapter and then is displaced toward the front side by a biasing force of the biasing unit.

Abstract: A housing structure includes: an optical cable including optical fibers; connector units branching off from the optical cable; and a housing body that houses the connector units. Each of the connector units includes: a first tube through which the optical fibers pass; second tubes through each of which the optical fibers branching off from the first tube pass; and a connector group constituted by optical connectors that are each disposed at an end part of each of the second tubes. The connector group of each of the connector units is disposed at a different position in a length direction from the connector group of any other one of the connector units. The first tube of each of the connector units other than a first connector unit that is shortest among the connector units overlaps in the length direction the connector group of the first connector unit.

Abstract: A pulling terminal structure includes: a braided tube that includes a pulling part; a housing tube disposed inside the braided tube and that houses an optical connector; and a reinforcement member disposed inside the braided tube and that reinforces an end part of the housing tube.

Abstract: A pull-end attachment structure includes a cable having an optical fiber, a cylindrical dam case and fixed to the cable so as to surround the cable, a cylindrical member to which a pull-hose configured to accommodate an end portion of the optical fiber is attached and which is provided so as to surround an outer circumferential surface of the dam case, and a cylindrical fixing member provided so as to surround the cable and capable of fixing to the cylindrical member, in which an outer diameter of the fixing member is equal to or less than an outer diameter of the cylindrical member, and a contacting surface is formed on an inner circumferential surface of the fixing member, the contacting surface that contacts the dam case and transfers a pulling force to the dam case when the cylindrical member and the fixing member are pulled through the pull-hose.

Abstract: A cable includes: a cable main body; a first adhesive layer in contact with an outer peripheral surface of the cable main body; a protective member that covers an end part of the cable main body; an outer peripheral member that covers a part of the protective member; and a second adhesive layer on an inner peripheral surface of the outer peripheral member and in contact with the protective member. Adhesive strength of the second adhesive layer is larger than adhesive strength of the first adhesive layer.

Abstract: An optical cable traction terminal structure includes: a helically wound inner tube that houses an optical cable; and a flexible outer tube disposed on an outer circumferential surface of the helically wound inner tube, wherein a part of the flexible outer tube enters an inside of a groove on the outer circumferential surface of the helically wound inner tube.

Abstract: An optical cable traction terminal structure includes: a helically wound inner tube that houses an optical cable; and a flexible outer tube disposed on an outer circumferential surface of the helically wound inner tube, wherein a part of the flexible outer tube enters an inside of a groove on the outer circumferential surface of the helically wound inner tube.

Abstract: A housing structure includes: an optical cable including optical fibers; connector units branching off from the optical cable; and a housing body that houses the connector units. Each of the connector units includes: a first tube through which the optical fibers pass; second tubes through each of which the optical fibers branching off from the first tube pass; and a connector group constituted by optical connectors that are each disposed at an end part of each of the second tubes. The connector group of each of the connector units is disposed at a different position in a length direction from the connector group of any other one of the connector units. The first tube of each of the connector units other than a first connector unit that is shortest among the connector units overlaps in the length direction the connector group of the first connector unit.

Abstract: A pulling terminal structure includes: a braided tube that includes a pulling part; a housing tube disposed inside the braided tube and that houses an optical connector; and a reinforcement member disposed inside the braided tube and that reinforces an end part of the housing tube.

Abstract: A cable includes: a cable main body; a first adhesive layer in contact with an outer peripheral surface of the cable main body; a protective member that covers an end part of the cable main body; an outer peripheral member that covers a part of the protective member; and a second adhesive layer on an inner peripheral surface of the outer peripheral member and in contact with the protective member. Adhesive strength of the second adhesive layer is larger than adhesive strength of the first adhesive layer.

Abstract: A fixing member includes: a base portion configured to be fixed to a housing of an optical connector; and a tubular portion that projects from the base portion in a direction away from the housing in a state where the base portion is fixed to the housing. The tubular portion is configured to cause an optical fiber to be inserted therethrough. The tubular portion includes a protrusion on an outer peripheral surface. The protrusion is configured to be inserted into a mesh hole of a mesh-like protective tube that protects the optical fiber.

Abstract: An optical fiber cable includes: an optical fiber; a sheath that accommodates the optical fiber; a tension member that extends from an end portion of the sheath; a housing disposed at an end portion of the tension member; and an anchor portion disposed on the tension member. The anchor portion increases a projected area of the tension member when viewed from a longitudinal direction of the optical fiber cable, the anchor portion is inside the housing, and the housing is filled with a filler that fixes the anchor potion to the housing.

Abstract: An optical fiber cable includes: an optical fiber; a sheath that accommodates the optical fiber; a tension member that extends from an end portion of the sheath; a housing disposed at an end portion of the tension member; and an anchor portion disposed on the tension member. The anchor portion increases a projected area of the tension member when viewed from a longitudinal direction of the optical fiber cable, the anchor portion is inside the housing, and the housing is filled with a filler that fixes the anchor potion to the housing.

Abstract: An optical wiring unit includes a plurality of drawers with optical adapters. Each of the drawers includes a first latch part and a second latch part. When any of the drawers are drawn out to a predetermined position, the first latch part of a drawn-out drawer latches on the second latch part of an adjacent drawer to lock the drawn-out drawer to the predetermined position.

Abstract: An optical wiring unit includes a plurality of drawers with optical adapters. Each of the drawers includes a first latch part and a second latch part. When any of the drawers are drawn out to a predetermined position, the first latch part of a drawn-out drawer latches on the second latch part of an adjacent drawer to lock the drawn-out drawer to the predetermined position.