Steel cord for reinforcing rubber product and pneumatic tire usi

Details Steel cord for reinforcing rubber product and pneumatic tire usi Steel cord for reinforcing rubber product and pneumatic tire usi

1997-10-23

1999-06-15

Calvert, John J.

Textiles: spinning, twisting, and twining

Strand structure

Covered or wrapped

57311, 57902, 152451, D02G 302, D02G 336

Patent

active

059116757

ABSTRACT:
A steel cord for reinforcing a rubber product includes a core consisting of one steel filament and a sheath consisting of a plurality of steel filaments wound around the core. The steel filament of the core alternately having straight portions, whose axes of the straight portions are disposed on one line, and protrusions formed by bending. The peak of each protrusion is disposed outside of the sheath. The steel cord for reinforcing a rubber product is used in a pneumatic tire. The pneumatic tire includes a carcass having a crown portion and having a toroidal shape, a pair of beads over which the toroidal shape extends, a belt layer or belt layers for reinforcing the crown portion of the carcass, and rubber surrounding the carcass, the pair of bead, and the belt layer(s). The steel cord is used in the carcass and/or the belt layer(s).

REFERENCES:
patent: 5020312 (1991-06-01), Watakabe
patent: 5295346 (1994-03-01), Bundo et al.
patent: 5319915 (1994-06-01), Kobayashi et al.
patent: 5337549 (1994-08-01), Kobayashi et al.
patent: 5584169 (1996-12-01), Ikehara
patent: 5606852 (1997-03-01), Yanagisawa
patent: 5616197 (1997-04-01), Helfer et al.
patent: 5661966 (1997-09-01), Matsumara
patent: 5707467 (1998-01-01), Matsumara et al.

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