Rope for lifting and an elevator comprising the rope
AssigneeNV Bekaert SA
InventorsJan Deconinck, Hendrik Rommel, Andreas Klust, Dominique Lefebvre
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Abstract
A rope (210, 310) having a three-layered structure comprising a core layer, an inner layer and an outer layer, the core layer comprising one strand (225, 315), the inner layer comprising multiple strands (220) with an amount n and the outer layer comprising multiple strands (215) with an amount m, wherein n is an uneven number, and m is a number which has no common divisor with n, each strand is formed by multiple twisted metal filaments. By this structure fretting of the strands is reduced and the life time of the rope is improved. Also, the use of the rope in lifting application and an elevator system comprising such a rope are disclosed.
Claims13
-12. (canceled)
A rope having a three-layered structure comprising a core layer, an inner layer and an outer layer, said core layer comprising one strand, said inner layer comprising a number of n strands, said outer layer comprising a number of m strand, each strand is formed by multiple twisted metal filaments, characterized in that, said n is an uneven number, and said m is a number which has no common divisor with n.
An elevator system comprising a car, a counterweight, an elevator machine and ropes, said car and said counterweight being driven by said elevator machine via said ropes, at least one said rope having a three-layered structure comprising a core layer, an inner layer and an outer layer, said core layer comprising one strand, said inner layer comprising multiple strands with an amount n, said outer layer comprising multiple strands with an amount m, each strand is formed by multiple twisted metal filaments, characterized in that, said n is an uneven number, and said m is a number which has no common divisor with n.
Dependencies are inferred from the claim text.