To provide a multi-core optical fiber cable with a thin diameter and high density which is not in danger of giving excess tension or side thrust to an optical fiber core, and is excellent in core wire discriminability.
A cable core is formed by holding a first tensile strength body 3 capable of suppressing tension to be applied to an optical fiber core 1 in construction to a fixed level or less at an approximate center part of a cross section of a cable over the entire length of the cable by a tensile strength holding part 51, and arranging a plurality of optical fiber core wires formed by twisting together or being straightly assembled among a plurality of partition wall parts 52 which extend from the tensile strength holding part 51 in the radial direction toward a cable jacket 2 in the cross section of the cable and divide the inside of the cable jacket 2 in the cross section of the cable over the entire length of the cable. The cable jacket 2 in which a second tensile strength body 4 capable of suppressing extraction and contraction of the cable jacket 2 to be generated due to temperature variation is arranged in the longitudinal direction of the cable is applied to the outer peripheral of the cable core.
| JPH01303408A | 1989-12-07 | |||
| JPS5123753A | 1976-02-25 | |||
| JP2004354448A | 2004-12-16 | |||
| JP2011123139A | 2011-06-23 | |||
| JP2004287221A | 2004-10-14 |
Yukio Nagauchi
Tsunoda Shigeo
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