Abstract: An optical fiber fusion-splicer that fusion-splices at least a pair of optical fibers that includes: a pair of electrode rod units each having a pointed end portion that faces each other and a pair of mounting bases that each support the electrode rod units. Abutting portions of the optical fibers are interposed between the pair of electrode rod units. Each of the electrode rod units includes: an electrode rod that fusion-splices the optical fibers by discharge heating and a main heat dissipation member that protrudes from an outer circumferential surface of the electrode rod. Each of the pair of mounting bases supports a position of the electrode rod units that is closer to a base end side than a pointed end portion of the electrode rod.

Abstract: An optical fiber fusion-splicer that fusion-splices at least a pair of optical fibers that includes: a pair of electrode rod units each having a pointed end portion that faces each other and a pair of mounting bases that each support the electrode rod units. Abutting portions of the optical fibers are interposed between the pair of electrode rod units. Each of the electrode rod units includes: an electrode rod that fusion-splices the optical fibers by discharge heating and a main heat dissipation member that protrudes from an outer circumferential surface of the electrode rod. Each of the pair of mounting bases supports a position of the electrode rod units that is closer to a base end side than a pointed end portion of the electrode rod.

Abstract: An optical fiber coating removal device which heats a coating of an optical fiber with a heater and removes the coating with a blade includes a communicator which receives information based on optical fiber type information to specify an optical fiber type selected by a user from among a plurality of optical fiber types, transmitted from an external device to which the optical fiber type information has been input, and a heater which heats a coating of an optical fiber using the received information based on the optical fiber type information. The heater can heat a coating under a plurality of conditions according to the optical fiber type information.

Abstract: An optical fiber cutter includes a device main body that includes a lid rotatably mounted with respect to a base and grips an optical fiber by an at least one lower gripper provided on the base and an upper gripper provided on the lid; a movable blade member that scratches a surface of the optical fiber gripped between the lower gripper and the upper gripper; and a pressing portion that presses the optical fiber scratched by the blade member to cut the optical fiber, wherein the at least one lower gripper is a gripping member separate from the base and is rotatable about a rotation fulcrum, and wherein a rotation fulcrum of the upper gripper paired with the at least one lower gripper is on the same center line as the rotation fulcrum of the at least one lower gripper.

Abstract: An optical fiber re-coating device of the invention includes an optical fiber coater that includes: a pair of glass members having grooves formed thereon; and two bases on which the respective glass members are provided, wherein at least one of the paired glass members has a cross section in a direction vertical to a mounting surface of the bases, the cross section is formed in a trapezoidal shape, the groove is provided on a short side of the trapezoidal shape, and an inclined surface of the glass member including an inclined side of the trapezoidal shape is pressed, and the glass member is thereby fixed to the base.

Abstract: A coating removal blade used in an optical fiber coating removal apparatus that removes a coating material of an optical fiber includes a blade tip that is pressed against the coating material from a radial direction of an optical fiber bare wire of the optical fiber, and a pressing surface against which the coating material to be pulled out from the optical fiber is pressed in a longitudinal direction of the optical fiber. The pressing surface includes an inclined surface that is inclined at a constant angle to extend in a direction opposite to a pulling-out direction of the optical fiber as a distance from the blade tip in the radial direction of the optical fiber bare wire increases, and an inclination angle of the inclined surface with respect to the pulling-out direction of the optical fiber is larger than 0° and equal to or smaller than 60°.

Abstract: A coating removing device includes a heating section that includes a heater to heat a coating of an optical fiber, and a blade to make an incision in the coating of the optical fiber; a gripping section that grips the optical fiber and is capable of moving with respect to the heating section; and a counter that counts a coating removal event number by detecting separation between the heating section and the gripping section.

Abstract: An optical fiber cutting system includes a pair of clamps disposed at an interval in a longitudinal direction of an optical fiber and that grasps the optical fiber; a disk-shaped blade member that passes between the pair of clamps, causes an outer circumferential edge to come into contact with the optical fiber, and scratches a surface of the optical fiber, where a position of the outer circumferential edge which is to be in contact with the optical fiber is changeable; a pressing member that press-bends a scratched portion of the optical fiber and cuts the optical fiber, and an acquirer that acquires position information of the outer circumferential edge which is to be in contact with the optical fiber.

Abstract: An optical fiber cutter includes a device main body that includes a lid rotatably mounted with respect to a base and grips an optical fiber by an at least one lower gripper provided on the base and an upper gripper provided on the lid; a movable blade member that scratches a surface of the optical fiber gripped between the lower gripper and the upper gripper; and a pressing portion that presses the optical fiber scratched by the blade member to cut the optical fiber, wherein the at least one lower gripper is a gripping member separate from the base and is rotatable about a rotation fulcrum, and wherein a rotation fulcrum of the upper gripper paired with the at least one lower gripper is on the same center line as the rotation fulcrum of the at least one lower gripper.

Abstract: A coating removal blade used in an optical fiber coating removal apparatus that removes a coating material of an optical fiber includes a blade tip that is pressed against the coating material from a radial direction of an optical fiber bare wire of the optical fiber, and a pressing surface against which the coating material to be pulled out from the optical fiber is pressed in a longitudinal direction of the optical fiber. The pressing surface includes an inclined surface that is inclined at a constant angle to extend in a direction opposite to a pulling-out direction of the optical fiber as a distance from the blade tip in the radial direction of the optical fiber bare wire increases, and an inclination angle of the inclined surface with respect to the pulling-out direction of the optical fiber is larger than 0° and equal to or smaller than 60°.

Abstract: An optical fiber coating removal device which heats a coating of an optical fiber with a heater and removes the coating with a blade includes a communicator which receives information based on optical fiber type information to specify an optical fiber type selected by a user from among a plurality of optical fiber types, transmitted from an external device to which the optical fiber type information has been input, and a heater which heats a coating of an optical fiber using the received information based on the optical fiber type information. The heater can heat a coating under a plurality of conditions according to the optical fiber type information.

Abstract: A coating removing device includes a heating section that includes a heater to heat a coating of an optical fiber, and a blade to make an incision in the coating of the optical fiber; a gripping section that grips the optical fiber and is capable of moving with respect to the heating section; and a counter that counts a coating removal event number by detecting separation between the heating section and the gripping section.

Abstract: An optical fiber cutting system includes a pair of clamps disposed at an interval in a longitudinal direction of an optical fiber and that grasps the optical fiber; a disk-shaped blade member that passes between the pair of clamps, causes an outer circumferential edge to come into contact with the optical fiber, and scratches a surface of the optical fiber, where a position of the outer circumferential edge which is to be in contact with the optical fiber is changeable; a pressing member that press-bends a scratched portion of the optical fiber and cuts the optical fiber, and an acquirer that acquires position information of the outer circumferential edge which is to be in contact with the optical fiber.

Abstract: An optical fiber re-coating device of the invention includes an optical fiber coater that includes: an inner glass opening-and-closing unit including: a pair of glass members having grooves formed thereon; and a pair of mounting tables which are coupled to each other via a first hinge; and an outer opening-and-closing unit including: a pair of covers which are coupled to each other via a second hinge, one of the paired covers having a magnet provided therein, the other of the paired covers having a magnet catch provided therein, the magnet and the magnet catch facing each other when the paired covers are in a closed state; and light sources that cure a resin used to coat an optical fiber provided in the inner glass opening-and-closing unit and are provided in the respective paired covers.

Abstract: A fusion splicing apparatus fusion-splices end faces 1a and 3a of a pair of optical fibers 1 and 3 to each other. The apparatus includes a mirror shaft 21 provided with a mirror 23 that is arranged between the end faces 1a and 3a of the pair of optical fibers 1 and 3 that are faced toward and spaced away from each other and is movable between a first position to reflect an image of the end face 1a and a second position to reflect an image of the end face 3a, a first camera 25 that takes the image of the end face 1a reflected in the first position, and a second camera 27 that takes the image of the end face 3a reflected in the second position.

Abstract: An optical fiber holding device of the invention includes a holder that includes a base and a lid which are openable and closable, sandwiches an optical fiber when the base and the lid are in a closed state, and thereby holds the optical fiber. The holder includes: an elastic body; a drive unit configured to generate driving power; and a pusher. The pusher is configured to generate a pressing force based on the driving power generated by the drive unit and press the lid by the pressing force via the elastic body. The lid and the base are configured to sandwich and hold the optical fiber based on the pressing force transmitted through the elastic body when the lid is pressed by the pusher via the elastic body.

Abstract: An optical-fiber-spliced portion reinforcing heating device of the invention includes: a pair of clamps that respectively grasp a coated portion of an optical fiber, the optical fiber including a fusion-spliced portion, the fusion-spliced portion being coated with a sleeve, the coated portion being exposed from the sleeve; at least two or more heaters that are arranged to face each other so as to sandwich the sleeve; a first force-applying member that presses at least one of the paired clamps so as to apply a tension to the optical fiber; and a second force-applying member that applies a pressing force to at least one or more of the heaters via the sleeve by use of one of an elastic member and a magnetic member in accordance with control of a drive source, the heaters being arranged to face each other with the sleeve interposed therebetween.

Abstract: An optical-fiber-spliced portion reinforcing heating device of the invention includes: clamps, a fifth force-applying member that sandwiches an optical fiber and applies a pressing force thereto; a first cam mechanism; a mechanism in which displacement of first cam mechanism controls to grasp the optical fiber by the clamps; heaters; a second force-applying member that sandwiches the sleeve and applies a pressing force thereto; a third cam mechanism; and a mechanism in which displacement of the third cam mechanism control to press the sleeve by the heaters. The same motor controls a force of each force-applying member of the clamps and the heaters by the first and third cam mechanism.

Abstract: An optical-fiber-spliced portion reinforcing heating device of the invention includes: a pair of clamps that respectively grasp a coated portion of an optical fiber, the optical fiber including a fusion-spliced portion, the fusion-spliced portion being coated with a sleeve, the coated portion being exposed from the sleeve; at least two or more heaters that are arranged to face each other so as to sandwich the sleeve; a first force-applying member that presses at least one of the paired clamps so as to apply a tension to the optical fiber; and a second force-applying member that applies a pressing force to at least one or more of the heaters via the sleeve by use of one of an elastic member and a magnetic member in accordance with control of a drive source, the heaters being arranged to face each other with the sleeve interposed therebetween.

Abstract: An optical fiber re-coating device of the invention includes an optical fiber coater that includes: an inner glass opening-and-closing unit including: a pair of glass members having grooves formed thereon; and a pair of mounting tables which are coupled to each other via a first hinge; and an outer opening-and-closing unit including: a pair of covers which are coupled to each other via a second hinge, one of the paired covers having a magnet provided therein, the other of the paired covers having a magnet catch provided therein, the magnet and the magnet catch facing each other when the paired covers are in a closed state; and light sources that cure a resin used to coat an optical fiber provided in the inner glass opening-and-closing unit and are provided in the respective paired covers.