APPARATUS FOR PASSING OPTICAL FIBER CABLE

Japanese Patent JP3432494

B2

PROBLEM TO BE SOLVED: To prevent an optical fiber cable from twisting and breaking by sending the cable intermittently into a pipe, and to enable the easy insertion or drawing out of the cable through a part (notched groove) where a load is not applied.
SOLUTION: The apparatus is provided with a pair of clamping rollers 10 and 10' which clamps an optical fiber cable A and send it into a pipe B. The clamping rollers are energized by a energizing means 17 in a clamped state. A part (peripheral surface) 20 where a load is applied on the optical fiber cable and a part on its peripheral surface (notched groove) 21 where the load is not applied to the optical fiber cable at at least one or more places are formed at either of the clamping rollers. The optical fiber cable is intermittently clamped and sent out by the action between the part where the load is applied by the turning of the clamping rollers and the part where the load is not applied.

JP3071020	[Title of Invention] Optical withdrawal connection box
JPH07114084	[Title of Invention] An optical fiber composite insulator and an insulator with a built-in optical sensor.
JPH10111441	OPTICAL CABLE INSERTION METHOD FOR OPTICAL LINE INSERTING PIPE WITH BRANCHING PART

Haruhiko Takahashi
Takayuki Yamamoto
Wataru Shamoto

JP2000339093A

August 04, 2003

November 07, 2000

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Chubu Electric Power Co., Inc.
Furukawa Electric Co., Ltd.

G02B6/46; B65H51/10; H01B11/00; H02G1/06; H02G1/08; H02G9/06; (IPC1-7): G02B6/46; B65H51/10; H02G1/06; H02G1/08; H02G9/06

JP6258530A
JP4116806U
JP9509751A

Shoichi Mukaiyama

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