Metal wire cord for elastomer reinforcement
AssigneeThe Goodyear Tire & Rubber Company
InventorItalo M. Sinopoli
Life of this patent
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Abstract
A metal cord for reinforcing elastomeric articles, such as earth mover tires, comprises a plurality of metal wire-filament strands, including a center strand and multiple peripheral strands concentrically surrounding the center strand. Each of the center and peripheral strands includes multiple individual wire filaments of similar diameter having identical strand lay direction and length. Each strand has a hexagonally close-packed longitudinally uniform polygonal outline in which filaments are in concentric layers, with each individual filament being tangential to all adjacently surrounding filaments. The peripheral strands are tangential to the center strand and have a predetermined cord lay length and direction either the same as (Lang's Lay) or opposite to that of the center strand.
Claims30
A metal cord for reinforcing elastomers and the like comprising:
- a plurality of wire strands, including a center strand and multiple peripheral strands concentrically surrounding said center strand,
- each of said center and peripheral strands including multiple individual filaments of similar constant diameter having identical strand lay direction and length, a hexagonally close-packed longitudinally uniform polygonal cross sectional outline, and having filaments in concentric layers in which each individual filament is tangential to all adjacent surrounding filaments,
- said peripheral strands being tangential to said center strand and having a predetermined cord lay direction the same as said strand lay direction and a predetermined lay length with respect to said center strand,
- said cord being of substantially uniform cross sectional dimension throughout its length.
A metal cord for reinforcing elastomers and the like that comprises:
- seven wire strands, including a center strand and six peripheral strands concentrically surrounding said center strand,
- each of said strands including multiple filaments of 0.20 mm diameter having identical strand lay direction and length of about 14 mm, a hexagonally close-packed longitudinally uniform polygonal cross sectional outline, and having filaments in concentric layers in which each individual filament is tangential to all adjacent surrounding filaments,
- all of said strands having the same number of filaments and being identical,
- said peripheral strands being tangential to said center strand and having a lay direction the same as said strand twist direction, and a lay length of about 22 mm.
A metal cord for reinforcing elastomers and the like comprising:
- a plurality of wire strands, including a center strand and six peripheral strands concentrically surrounding said center strand,
- each of said center and peripheral strands including multiple individual filaments of similar constant diameter in the range of 0.175 to 0.30 mm having identical strand lay direction and length, a hexagonally close-packed longitudinally uniform polygonal cross sectional outline, and having filaments in concentric layers in which each individual filament is tangential to all adjacent surrounding filaments,
- said peripheral strands being tangential to said center strand and having a predetermined cord lay direction and length with respect to said center strand.
The cord set forth in claim 17 wherein said number is in the range of 12 to 27.
A metal cord for reinforcing elastomers and the like comprising:
- a plurality of wire strands, including a center strand and six peripheral strands concentrically surrounding said center strand,
- each of said center and peripheral strands including multiple individual filaments of similar constant diameter having identical strand lay direction and length, a hexagonally close-packed longitudinally uniform polygonal cross sectional outline, and having filaments in concentric layers in which each individual filament is tangential to all adjacent surrounding filaments,
- said peripheral strands being tangential to said center strand and having a predetermined cord lay direction with respect to said center strand, and a cord lay length that is greater than said strand lay length.
A metal cord for reinforcing elastomers and the like comprising:
- a plurality of wire strands, including a center strand and six peripheral strands concentrically surrounding said center strand,
- each of said center and peripheral strands including multiple individual filaments of similar diameter having identical strand lay direction and length, a hexagonally close-packed longitudinally uniform polygonal cross sectional outline, and having filaments in concentric layers in which each individual filament is tangential to all adjacent surrounding filaments,
- said peripheral strands being tangential to said center strand and having a predetermined cord lay direction and length with respect to said center strand, said cord lay length being in the range of about 18 to 30 mm.
A metal cord for reinforcing elastomers and the like comprising:
- a plurality of wire strands, including a center strand and six peripheral strands concentrically surrounding said center strand,
- each of said center and peripheral strands including multiple individual filaments of similar diameter having identical strand lay direction and length, a hexagonally close-packed longitudinally uniform polygonal cross sectional outline, and having filaments in concentric layers in which each individual filament is tangential to all adjacent surrounding filaments,
- said peripheral strands being tangential to said center strand and having a predetermined cord lay direction and length with respect to said center strand, said strand lay length being in the range of about 10 to 18 mm.
Dependencies are inferred from the claim text.