摘要:
The present invention's optical cable is provided with optical fibers, a forming pipe for housing the optical fibers, a sheath provided around the forming pipe, and at least one pair of rip cords embedded in the sheath. The forming pipe is formed of a plurality of tapes so that it is dividable along its longitudinal direction. When dividing the optical cable, the rip cords are pulled to tear open the sheath, and the already split forming pipe is divided while staying adhered to the respective parts of the sheath. As a result, the division of the sheath and the forming pipe is carried out in one stroke, so that the optical fibers inside the forming pipe can be exposed easily and quickly.
摘要:
An optical cable formed by optical fibers, a forming pipe, a sheath, a pair of tension members, and a pair of rip cords. The forming pipe includes a plurality of tapes arranged to permit the forming pipe to be divided in the longitudinal direction and the rip cords are located near the seams of the forming pipe. A distance from the surface of the tension members to the inner surface of the sheath and to the outer surface of the sheath are both 0.3 mm or more. A distance from the center of the rip cords to the inner surface of the sheath is from 0.2-fold or greater to 1.2-fold or less than the radius of the tip cords. Furthermore, the distance from the surface of the rip cords to the seams of the forming pipes is 0.5 mm or less.
摘要:
There is provided an optical-fiber; and a cylinder body which is made from a cylindrically formed belt-shaped material and made of resin and which accommodates the optical-fiber therein.
摘要:
An extrusion-molding apparatus for a loose tube includes: an extrusion head that includes a tip and a die concentrically arranged therewithin and extrudes a tube between the tip and the die; a needle that feeds at least one optical fiber and filler to be filled around the optical fiber into the tube being extrusion-molded; and a cylindrical bundling member provided within the needle. The bundling member has a bundling hole being smaller than an inner diameter of the tube at a center thereof and into which the optical fiber can pass through, and a flow pass penetrating along a feeding direction of the filler between the bundling hole and an inner circumferential surface of the needle. In an extrusion molding method using the extrusion-molding apparatus, the optical fiber is passed through a bundling hole to be bundled at an almost center of the tube. In addition, filler is passed through a flow path to be filled around the optical fiber.
摘要:
An optical fiber cable 1 includes: a cable core 9 formed by stranding a plurality of loose tubes 7, each housing at least one optical fiber 5, on the periphery of a centered tension member 3; and a sheath 11 disposed on the outer periphery of the cable core 9. The sheath 11 includes: a first sheath portion 13 in which the sheath is embedded in between each of the loose tubes 7; and a second sheath portion 15, in which the sheath 11 is circumscribed around the cable core 9, to be thereby formed in a pipe shape. The first sheath portion 13 and the second sheath portion 15 are alternately positioned over the entire length of the cable core 9.
摘要:
An optical fiber cable 1 includes: a cable core 9 formed by stranding a plurality of loose tubes 7, each housing at least one optical fiber 5, on the periphery of a centered tension member 3; and a sheath 11 disposed on the outer periphery of the cable core 9. The sheath 11 includes: a first sheath portion 13 in which the sheath is embedded in between each of the loose tubes 7; and a second sheath portion 15, in which the sheath 11 is circumscribed around the cable core 9, to be thereby formed in a pipe shape. The first sheath portion 13 and the second sheath portion 15 are alternately positioned over the entire length of the cable core 9.
摘要:
An extrusion-molding apparatus for a loose tube includes: an extrusion head that includes a tip and a die concentrically arranged therewithin and extrudes a tube between the tip and the die; a needle that feeds at least one optical fiber and filler to be filled around the optical fiber into the tube being extrusion-molded; and a cylindrical bundling member provided within the needle. The bundling member has a bundling hole being smaller than an inner diameter of the tube at a center thereof and into which the optical fiber can pass through, and a flow pass penetrating along a feeding direction of the filler between the bundling hole and an inner circumferential surface of the needle. In an extrusion molding method using the extrusion-molding apparatus, the optical fiber is passed through a bundling hole to be bundled at an almost center of the tube. In addition, filler is passed through a flow path to be filled around the optical fiber.
摘要:
In a vehicle control device which performs braking control of a vehicle, a priority setting unit determines, when a possibility that a self-vehicle and another vehicle cross each other at an intersection in front of the self-vehicle is detected, a priority for each of the self-vehicle and the other vehicle with respect to access to the intersection. A braking control unit performs, when the self-vehicle has no priority over the other vehicle with respect to access to the intersection, the braking control of the self-vehicle so that the self-vehicle enters the intersection after the other vehicle passes through the intersection.
摘要:
An optical fiber cable is comprised of: a slotted core (7) elongated along an axis of the optical fiber cable, the slotted core including a slot (11) running in parallel with the axis and a groove (5) accessible through the slot; one or more optical fibers (3) placed in the groove; a sheath (9) enclosing the slotted core and the optical fibers; a bonding portion (15) where the slotted core is bonded with the sheath; and two or more strength members (17) embedded in the slotted core, the strength member running in parallel with the axis, and being aligned on a plane including the axis.
摘要:
A system having a whole nerve pathway diagram data recording unit 1; a nerve finding data input unit 2; a responsible nerve pathway data extraction unit 3 by which the data of a nerve pathway responsible for a nerve finding item showing an abnormal finding is extracted from the data of the whole nerve pathway diagram data recording unit based on the data obtained by the nerve finding input unit; a whole nerve pathway indication unit 5 by which the whole nerve pathway is indicated in a display unit 4 based on the data of the whole nerve pathway diagram data recording unit; a responsible nerve pathway indication unit 6 by which the responsible nerve pathway is indicated in the whole nerve pathway diagram based on the data of the whole nerve pathway diagram data recording unit; and a responsible lesion estimation/indication unit 7 by which the location of the responsible lesion in the whole nerve pathway diagram is estimated and indicated in the whole nerve pathway diagram based on the data of the responsible nerve pathway shown in the display unit.