Optical fiber drawing apparatus
AssigneeSumitomo Electric Industries, Ltd.
InventorsKatsuyuki Tsuneishi, Shigeru Ito, Takashi Yamazaki
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Abstract
An optical fiber drawing apparatus which includes a heating furnace which fuses a forward end of an optical fiber preform for drawing an optical fiber, and a screening portion which applies tension to the optical fiber through in-line, for guarantee of its strength. The screening portion further includes a suction device disposed along a passage of the optical fiber running through it for sucking in the optical fiber.
Claims1
An optical fiber drawing apparatus which comprises a heating furnace which fuses a forward end of an optical fiber preform for drawing an optical fiber therefrom, and a screening portion including means for applying tension to the optical fiber through in-line for guaranteeing strength of the fiber, said screening portion further comprising a suction device disposed along a passage of the optical fiber running therethrough for sucking in said optical fiber at a time of breakage of said optical fiber, said suction device comprising a suction port provided along the passage, a suction blower connected to said suction port through a pipe, and a mesh element provided in the pipe between said suction port and said suction blower with a pocket formed in said pipe in a position prior to the mesh element.
Dependencies are inferred from the claim text.