Abstract:
The present rope is torsion free mainly because it has an inner rope formed by an inner layer of strands which is surrounded by an outer layer of strands and since the inner rope is constructed of at least three flattened strands and at least three round strands which are smaller than the flattened strands to fill the spacings between adjacent flattened strands. The inner strands surround a center member of elastic material.
Abstract:
The invention relates to a rope (1) made of textile fibre material, which is characterized by the combination of features wherebya) the load-bearing fibre material of the rope (1) consists of high-strength synthetic fibresb) the rope (1) is in the form of a spiral strand ropec) the rope (1) has at least two, preferably at least three concentric load-bearing strand layers (3,4,5)d) the individual strands (7,8,9,10,11,12) of the strand layers (3,4,5) are movable with respect to one anothere) the degree of filling of the rope (1) with textile fibre material is ≧75%, preferably ≧85%f) the outermost ply (5,6) of the rope has a coefficient of frictionμ with respect to steel of μ
Abstract:
Hybrid rope (20) comprising a core element (22) containing high modulus fibers surrounded by at least one outer layer (24) containing wirelike metallic members (26). The core element (22) is coated (23) with a thermoplastic polyurethane or a copolyester elastomer, preferably the copolyester elastomer containing soft blocks in the range of 10 to 70 wt %. The coated material (23) on the inner core element (22) is inhibited to be pressed out in-between the wirelike members (26) of the hybrid rope (20) and the hybrid rope (20) has decreased elongation and diameter reduction after being in use.
Abstract:
The present invention is to provide a hybrid core rope which does not require maintenance or a hybrid core rope capable of reducing a maintenance task. The hybrid core rope includes a resin solid core in which a plurality of spiral grooves is formed in the longitudinal direction on an outer peripheral surface thereof, a plurality of fiber bundles respectively spirally wound around the outer peripheral surface of the resin solid core along the plurality of spiral grooves, the fiber bundles having thickness to fill the spiral grooves, and a plurality of steel strands spirally wound around the outer peripheral surface of the resin solid core around which the fiber bundles are wound. The fiber bundles and the strands are respectively wound so as to have angles which are not parallel to each other.
Abstract:
An annular metal cord and an endless metal belt are provided which have superior breaking strength and which are easy to be produced.The annular metal cord includes an annular core portion 3 and an outer layer portion 4. The annular core portion 3 is formed by connecting together both ends of a first strand material 1 which is made up of six twisted first metal filaments 5. The outer layer portion 4 is formed by winding spirally a second strand material 2 which is made up of six twisted second metal filaments 6 around the annular core portion 3. The second strand material 2 is wound at a predetermined winding angle relative to a center axis of the annular core portion 3, and a winding initiating end portion and a winding terminating end portion thereof are connected together. Since it is not that six second strand materials 2 are not wound but that the second strand material 2 is wound six rounds, there only has to be the single second strand material 2, and there is only one connecting portion. As a result, the breaking strength of the annular metal cord can be made large, and the production thereof can be facilitated.
Abstract:
Die Erfindung betrifft ein Seil (1) aus textilem Fasermaterial, welches durch die Kombination der Maßnahmen gekennzeichnet ist, dass a) das lasttragende Fasermaterial des Seiles (1) aus hochfesten Kunststofffasern besteht b) das Seil (1) in Form eines Spirallitzenseiles vorliegt c) das Seil (1) mindestens zwei, bevorzugt mindestens drei konzentrische lasttragende Litzenlagen (3, 4, 5) aufweist d) die einzelnen Litzen (7, 8, 9, 10, 11, 12) der Litzenlagen (3, 4, 5) gegeneinander bewegbar sind, e) der Füllungsgrad des Seiles (1) an textilem Fasermaterial ≥ 75%, bevorzugt ≥ 85% beträgt und f) die äußerste Schicht (5, 6) des Seiles einen Reibungskoeffizient μ gegenüber Stahl von μ
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.