Rope of an elevator and a method for manufacturing the rope

A rope of a lifting device for an elevator, the rope comprising:

• a load-bearing part, the load-bearing part having an essentially rectangular cross-section where a width of the cross-section is greater than a height of the cross-section, the load-bearing part including glass fiber reinforcements and/or aramid fiber reinforcements and/or carbon fiber reinforcements and/or polybenzoxazole fiber reinforcements and/or polyethylene fiber reinforcements and/or nylon fiber reinforcements in a polymer matrix material, and one or more long sides of the cross-section of the load-bearing part includes symmetrically or asymmetrically one or more grooves, which one or more grooves extend a length of the load-bearing part in a longitudinal direction to divide the load-bearing part into smaller parts;
• and
• a coating material coating the load-bearing part, the coating material filling the one or more grooves, and the coating material being a polymer,
• wherein the load-bearing part is configured to split in a controlled manner at one or more of the grooves into smaller load-bearing parts when supporting an elevator car, the coating material keeping the rope together and an amount of the load-bearing cross-section does not essentially change.

A method for manufacturing a rope of a lifting device for an elevator, the rope includes a load-bearing part, the load bearing part having an essentially rectangular cross-section wherein a width of the cross-section is greater than a height of the cross-section, the load-bearing part includes glass fiber reinforcements and/or aramid fiber reinforcements and/or carbon fiber reinforcements and/or polybenzoxazole fiber reinforcements and/or polyethylene fiber reinforcements and/or nylon fiber reinforcements in a polymer matrix material, the method including:

• providing one or more grooves, symmetrically or asymmetrically, on both upper and lower, long sides of the width of the cross-section of the load-bearing part, the one or more grooves extending a length of the rope in a longitudinal direction and dividing the load-bearing part into smaller parts;
• and
• coating the load-bearing part with a coating material so as to fill the one or more grooves, the coating material being a polymer,
• wherein the fiber reinforcements are interspersed throughout the load-bearing part such that the fiber reinforcements are provided between a narrowest point of the load-bearing part between opposed grooves.