Synthetic fiber rope for an elevator

A rope for an elevator comprising:

• an inner layer of three strands laid helically around one another;
• a middle layer of six strands laid helically around the inner layer;
• and
• an outer layer of twelve strands laid helically around the middle layer;
• wherein each strand comprises a plurality of pre-twisted substrands, each substrand comprising a plurality of yarns twisted together, wherein each yarn is twisted about its longitudinal axis in a first direction, and the plurality of yarns are twisted about each other in a second direction to form each pre-twisted substrand, and wherein the yarns comprise high modulus synthetic filaments.

A rope for an elevator comprising:

• an inner layer of strands laid in a helical orientation;
• and
• one or more outer layers of strands, each outer layer of strands laid helically around the preceding layer,
• each strand comprising a plurality of pre-twisted substrands, each substrand comprising a plurality of yarns twisted together, wherein each yarn is twisted about its longitudinal axis in a first direction, and the plurality of yarns are twisted about each other in a second direction to form each pre-twisted substrand and wherein the yarns comprise high modulus synthetic filaments.

An elevator system comprising:

• an elevator car;
• a rope comprising a plurality of strands, each strand comprising a plurality of pre-twisted substrands, each substrand comprising a plurality of yarns twisted together, wherein each yarn is twisted about its longitudinal axis in a first direction, and the plurality of yarns are twisted about each other in a second direction to form each pre-twisted substrand, and wherein the yarns comprise high modulus synthetic filaments;
• a drive motor for displacing the rope in order to move the car;
• one or more sheaves for guiding the displacement of the rope;
• and
• a counterweight coupled to the rope for counterbalancing the weight of the car.