Abstract:
The present invention pertains to a parallel rope comprising elongate bodies wherein the length axis of the elongate bodies is parallel to the length of the rope or wherein the elongate bodies show helix angles smaller than 2°, characterized in that the elongate bodies comprise tapes of ultra-high molecular weight polyethylene, the tapes having a width to thickness ratio of at least 10 and a polymer solvent content below 0.05 wt.%. It has been found that a parallel rope based on the specified polyethylene tapes shows high modulus in combination with low weight, a long life-span, and low creep. If so desired, the rope may be free of non-polyethylene low-molecular weight components, as the tapes do not require the presence of a finish.
Abstract:
An exemplary method of making a load bearing elevator traction belt includes applying individual coatings of a jacket material to each of a plurality of tension members such that each tension member is individually coated separately from the other tension members. A portion of the individual coatings are joined together to secure the tension members into a desired alignment and to form a single jacket that establishes a geometry of the belt.
Abstract:
Ein Aufzug umfasst eine Kabine (3), eine Gegengewicht (8), ein mit der Kabine und dem Gegengewicht zusammenwirkenden Tragmittel (12) und ein von dem Tragmittel wenigstens teilweise umschlungenen Rad (4.1, 4.2, 4.3, 4.4), wobei das Tragmittel eine Zugträgeranordnung aus zwei Zugträgern (14) und einen die Zugträgeranordnung umhüllenden Mantel (13) aufweist, der in einem Bereich einer Außenoberfläche (13.1), der das Rad (4.1, 4.2, 4.3, 4.4) teilweise umschlingt, eine Längsstruktur aufweist, und wobei das Verhältnis der Breite (B) des Tragmittels zu dessen Höhe (H) größer eins und kleiner oder gleich drei ist (1
Abstract:
The present invention pertains to a parallel rope comprising elongate bodies wherein the length axis of the elongate bodies is parallel to the length of the rope or wherein the elongate bodies show helix angles smaller than 2°, characterized in that the elongate bodies comprise tapes of ultra-high molecular weight polyethylene, the tapes having a width to thickness ratio of at least 10 and a polymer solvent content below 0.05 wt.%. It has been found that a parallel rope based on the specified polyethylene tapes shows high modulus in combination with low weight, a long life-span, and low creep. If so desired, the rope may be free of non-polyethylene low-molecular weight components, as the tapes do not require the presence of a finish.
Abstract:
The invention relates to an elevator comprising a cab (3), a counterweight (8), a suspension (12) working together with the cab and the counterweight, and a wheel (4.1, 4.2, 4.3, 4.4) at least partially wound around by the suspension, wherein the suspension comprises a tie beam arrangement made of two tie beams (14) and a shell (13) encasing the tie beam arrangement, said shell comprising a longitudinal structure in an area of an outer surface (13.1) partially winding around the wheel (4.1, 4.2, 4.3, 4.4), and wherein the ratio of the width (B) of the suspension to the height (H) thereof is greater than one and less than or equal to three (1
Abstract:
An elevator load bearing assembly (30) includes a jacket (34) having different portions comprising different polymer compositions. In a disclosed example, a plurality of tension members (32) are at least partially surrounded by a first portion (36) comprising a first polymer composition. A second portion (38) establishes at least one exterior surface (40) of the jacket (34) and comprises a second polymer composition. In one example, a surface-modifying agent is added to alter the composition of at least a portion of the jacket (34). In another example, co-extrusion techniques using different polymer compositions establish different portions of the jacket (34).
Abstract:
An exemplary assembly includes at least one elongated tension member (32). A jacket covers at least some of the tension member (32). The jacket comprises a polymer material (68,64) including an adhesion enhancer (62) that facilitates adhesion between the tension member and the jacket.
Abstract:
A load bearing member (22) useful in an elevator system (10) includes at least one elongated tension member (36), a conversion coating (46) on the elongated tension member (36), and a polymer jacket (34) at least partially surrounding the coated elongated tension member (36). In one example, the conversion coating (46) includes at least one of an oxide, a phosphate, or a chromate.
Abstract:
In an elevator rope, an inner layer rope has: an inner layer rope fiber core; a plurality of inner layer strands; and a resin inner layer rope coating body that is coated onto an outer circumference. Inner layer strands are twisted together on an outer circumference of the inner layer rope fiber core. The inner layer strands have: an inner layer strand fiber core that is disposed centrally; and a plurality of steel inner layer strand wires that are twisted together on an outer circumference of the inner layer strand fiber core. In addition, a plurality of steel outer layer strands are twisted together on an outer circumference of the inner layer rope.