UNSHIELDED TWIST PAIR CABLE FOR LAN

Japanese Patent JP3546690

B2

PROBLEM TO BE SOLVED: To provide an inexpensive cable excellent in a transmission characteristic by arranging deformed intermediaries for restricting a movement by separating respective twist pairs between plural twist pairs, and covering the outer periphery of a twist core composed of the deformed intermediaries and the plural twist pairs with a sheath.
SOLUTION: In a twist pair cable 10, plural twist pairs 11a to 11d are intertwisted at respectively different pitched, deformed intermediaries 14a, 14b for restricting a movement are arranged, a twist pair core 12 is formed by gathering the respective twist pairs 11 and the deformed intermediaries 14a, 14b, and the outer periphery is covered with a sheath 13. It is desirable that a separate distance between the twist pairs 11 where the deformed intermediaries 14a, 14b, a spacer and a covering spacer are oppositely arranged through polyethylene, the deformed intermediaries 14a, 14b and the spacer is not less than 1.0 mm and a separate distance between adjacently arranged twist pairs 12 is not less than 0.3 mm and a covering thickness of the covering spacer is not less than 0.15 mm and a collective sheath is PVC or polyethylene.

JP2003346568	LAN CABLE
JPH0831236	SHIELD CABLE
JP4159731	Electric cable device and its manufacturing method

Misao Ota
Wataru Nakatani
Maya Ishi
Yasuhiko Suzuki
Nobuo Yamamoto

JP8715298A

July 28, 2004

March 31, 1998

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Hitachi Cable Ltd.

H01B11/04; (IPC1-7): H01B11/04

JP61013507A
JP48050871U
JP56052811A
JP11053958A

Nobuo Kinutani

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