08-04-2021 дата публикации
Номер: US20210102336A1
Принадлежит:
A two-layer multi-strand cord () comprises an internal layer (CI) of the cord made up of J>1 internal strands (TI) and an external layer (CE) of the cord made up of L>1 external strands (TE). The cord satisfies the relationship 100≤MC≤175, where MC=(J×MI+L×ME)/(J+L); MI=200×cos(α)×[Q×(D/2)×cos(β)+N×(D/2)×cos(γ)]/[Q×(D/2)+N×(D/2)]; and ME=200×cos(α′)×[Q′×(D′/2)×cos(β′)+N′×(D′/2)×cos(γ′)]/[Q′×(D′/2)+N′×(D′/2)], where D, D′, D, D′ are in mm, α and α′ are the helix angle of each internal and external strand (TI), β and β′ are the helix angle of each internal thread (F, F′), and γ and γ′ are the helix angle of each external thread (F, F′). 115.-. (canceled)16. A two-layer multi-strand cord comprising:{'b': 1', '2, 'an internal layer of the cord made up of J>1 internal strands wound in a helix, each internal strand having two layers and comprising an internal layer made up of Q≥1 internal threads of diameter D, and an external layer made up of N>1 external threads of diameter D wound around the internal layer; and'}{'b': 1', '2, 'an external layer of the cord made up of L>1 external strands wound around the internal layer of the cord, each external strand having two layers and comprising an internal layer made up of Q′≥1 internal threads of diameter D′, and an external layer made up of N′>1 external threads of diameter D′ wound around the internal layer,'} [{'br': None, 'i': 'MC≤', '100≤175'}, {'br': None, 'i': MC', 'J×MI+L×ME', 'J+L, 'where =()/(),'}, {'br': None, 'i': MI=', 'Q', 'D', 'N', 'D', 'Q', 'D', '+N', 'D, 'sup': 4', '2', '4', '2', '4', '2', '2, 'where 200×cos(α)×[×(1/2)×cos(β)+×(2/2)×cos(γ)]/[×(1/2)×(2/2)],'}], 'wherein the cord satisfies the following relationship{'b': 1', '2, 'claim-text': {'br': None, 'i': ME=', 'Q', 'D', 'N', 'D', 'Q', 'D', '+N', 'D, 'sup': 4', '2', '4', '2', '4', '2', '2, 'where 200×cos(α′)×[′×(1′/2)×cos(β′)+′×(2′/2)×cos(γ′)]/[′×(1′/2)′×(2′/2)], and'}, 'where D and D are expressed in mm, α is the helix angle of each internal strand in the ...
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