Steel cord for reinforcing elastomeric articles

A steel cord for reinforcing elastomeric articles, the steel cord having a plurality of strands, each strand having a core and a sheath, the sheath being a plurality of steel filaments helically wrapped about the core, a first strand extending longitudinally through the center of the steel cord, the remaining strands being helically wrapped about the first strand, the steel cord being characterized in that:

• the core of the first strand being a plurality of filaments twisted together;
• and
• wherein the plurality of steel filaments in the core of the first strand being twisted in an S-direction at a lay lenght of 7 mm.

A steel cord for reinforcing elastomeric articles, the steel cord having a plurality of strands, each strand having a core and a sheath, the sheath being a plurality of steel filaments helically wrapped about the core, a first strand extending longitudinally through the center of the steel cord, the remaining strands, being helically wrapped about the first strand the steel cord being characterized in that:

• the core of the first strand being a plurality of filaments twisted together;
• and
• wherein the sheath of the first strand being helically wound about the core of the first strand in an S-direction at a lay length of 14 mm.

A steel cord for reinforcing elastomeric articles, the steel cord having a plurality of strands, each strand having a core and a sheath, the sheath being a plurality of steel filaments helically wrapped about the core, a first strand extending longitudinally through the center of the steel cord, the remaining strands being helically wrapped about the first strand, the steel cord being characterized in that:

• the core of the first strand being a plurality of filaments twisted together;
• and
• wherein the sheath of each of the remaining strands being helically wound about the respective core in a Z-direction at a lay length of 29 mm.

A steel cord for reinforcing elastomeric articles, the steel cord having a plurality of strands, each strand having a core and a sheath, the sheath being a plurality of steel filaments helically wrapped about the core, a first strand extending longitudinally through the center of the steel cord, the remaining strands being helically wrapped about the first strand, the steel cord being characterized in that:

• the core of the first strand being a plurality of filaments twisted together;
• and
• wherein the remaining strands being helically wound about the first strand in an S-direction at a lay length of 40 mm.

A steel cord for reinforcing elastomeric articles, the steel cord having a plurality of strands, each strand having a core and a sheath, the sheath being a plurality of steel filaments helically wrapped about the core, a first strand extending longitudinally through the center of the steel cord, the remaining strands being helically wrapped about the first strand, the steel cord being characterized in that:

• the core of the first strand being a plurality of filaments twisted together;
• and
• wherein each of the filaments forming the sheath of the first strand being equal in diameter to a filament forming the core of the remaining strands.

A steel cord for reinforcing elastomeric articles, the steel cord having a plurality of strands, each strand having a core and a sheath, the sheath being a plurality of steel filaments helically wrapped about the core, a first strand extending longitudinally through the center of the steel cord, the remaining strands being helically wrapped about the first strand, the steel cord being characterized in that:

• the core of the first strand being a plurality of filaments twisted together;
• and
• wherein each of the filaments forming the sheath of the first strand being greater in diameter than each of the filaments forming the sheaths of the remaining strands.

A steel cord for reinforcing elastomeric articles, the steel cord having a plurality of strands, each strand having a core and a sheath, the sheath being a plurality of steel filaments helically wrapped about the core, a first strand extending longitudinally through the center of the steel cord, the remaining strands being helically wrapped about the first strand, the steel cord being characterized in that:

• the core of the first strand and the core of the remaining strands being a plurality of filaments twisted together, the first strand being a core of three filaments wrapped by a sheath of six filaments and the remaining strands being a core of three filaments wrapped by a sheath of six filaments.

A steel cord for reinforcing elastomeric articles, the steel cord having a plurality of strands, each strand having a core and a sheath, the sheath being a plurality of steel filaments helically wrapped about the core, a first strand extending longitudinally through the center of the steel cord, the remaining strands being helically wrapped about the first strand, the steel cord being characterized in that:

• the core of the first strand being a plurality of filaments twisted together, and the core of the remaining strands being a core of three filaments, the three filaments of the core of the remaining strands being twisted in a Z-direction at a lay length of 14 mm.