STEEL CORD FOR REINFORCING RUBBER ARTICLE AND PNEUMATIC RADIAL TIRE

PURPOSE: To obtain steel cord having an improved life at break and stably prolonging a traveling life of a pneumatic tire without causing variability in a steel cord of 3+7 structure of 3+8 structure. CONSTITUTION: In steel cord for reinforcing a rubber article comprising a two- layer structure comp...

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Bibliographische Detailangaben
1. Verfasser:	NOGUCHI YOJI
Format:	Patent
Sprache:	eng
Schlagworte:	CABLES OTHER THAN ELECTRIC DEVICES OR ARRANGEMENTS RELATED TO TYRES PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL ROPES ROPES OR CABLES IN GENERAL TEXTILES TRANSPORTING TYRE CHANGING OR REPAIRING TYRE INFLATION VEHICLE TYRES VEHICLES IN GENERAL WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE: To obtain steel cord having an improved life at break and stably prolonging a traveling life of a pneumatic tire without causing variability in a steel cord of 3+7 structure of 3+8 structure. CONSTITUTION: In steel cord for reinforcing a rubber article comprising a two- layer structure composed of a core made by twisting three filaments and a sheath obtained by twisting 7 to 8 steel filaments in a pitch different from that of the core around the core and not winding the two-layer structure with a wrapping filament, the filaments constituting the core are embossed in a wavy shape and a filament embossing ratio F shown by the formula F=H/D (F is an amplitude and D is a real diameter of the cord from which the sheath filaments are removed) is