Abstract:
The strand comprises a group of twisted metal wires, a plastic sheath and a pliant filling compound which fills internal interstices between the twisted wires of the group and a peripheral interstice lying between the periphery of the group and the inner face of the sheath. This peripheral interstice has, in a cross section of the strand, an area of between Pnullemin and 0.6nullS2, where P is the external perimeter of the group of wires, eminnull0.05 mm and S2 is the cumulative area of the gaps lying between the periphery of the group and the smallest circle within which the group is inscribed.
Abstract:
A method for making a wire rope comprising a core; a plastic jacket placed over the core; a plurality of outer strands laid on the circumference of the jacket core; and a plurality of substantially round wormings. The method comprises the steps of: i) extruding the plastic jacket over the core; ii) simultaneously laying on the circumference of the jacketed core a plurality of loose and substantially round wormings, and a plurality of outer stands, whereby the wormings are compressed by the outer strands to substantially fill the voids comprised between two adjacent outer strands and the core.
Abstract:
Reinforced thermoplastic impregnated lubricated wire ropes are provided in the present invention. A method of reinforcing and filling the thermoplastic material with fibers, mineral fillers and powders is also provided.
Abstract:
An aramid fiber rope having a central core surrounded with aramid fiber rope strands. The core and the aramid strands are coated with a heavy viscous lubricant prior to winding the strands into rope. The lubricated rope is then impregnated and surrounded with a plastic material to entrap the lubricant in the core and the strands.
Abstract:
A composite wire (10) comprising an outer layer (1) and an inner por¬ tion (2, 3), said outer layer (1) being of linear or helical form and consisitng of a metallic material, and said inner portion comprising fibers (2) and/or pultruded bars (3), the fibers (2)and/or pultruded bars (3) being arranged parallel to the lon¬ gitudinal axis of the composite wire (10) or in a twisted manner. The composite wire (10) may be used autonomously or as part of strands (12) or ropes (13), The composite wire (10) has higher resis¬ tance to axial stresses, improved wear properties and reduced specif¬ ic weight compared to metal wires.
Abstract:
A hoist for an elevator, wherein a rotating shaft (6) supported rotatably on bearing stands (2, 3) is rotated by a driving force of a drive motor (8) so as to move a car up and down through a main cable (7), a main cable application part (6a) for applying the main cable (7) thereto is formed integrally with the rotating shaft (6) and a plurality of rope grooves (6b) for inserting the main rope (7) therein are provided in the main rope application part (6a).
Abstract:
A push-pull steel cable (10) comprises a core (12) and an outer layer of filaments (16) twisted around the core (12). The cable (10) is provided with an external coating (20) of polyethylene terephthalate. The coating (20) gives to the cable (10) a good resistance against corrosion, a good weatherability, a good adhesion and adhesion retention and a friction resistance which is comparable to the friction resistance of a cable with a nylon coating. The cable (10) can be used as a brake cable, a shifting lever cable or a window elevator cable.
Abstract:
Drahtseil (10), bei dem auf zumindest einen Draht ein Gleitmittel fest aufgebracht ist. Bevorzugt handelt es sich bei dem Gleitmittel um ein Wachs, einen Lack, eine Beschichtung aus aufextrudiertem Material und/oder eine Folie. Zusätzlich kann im Inneren des Drahtseils (10) zumindest ein Opferschmierelement (18), z.B. ein Draht aus Zinksulfid (ZnS), Titanoxid, Bariumsulfat (BaSo4) und/oder Polytetrafluorethylen (PTFE/ Teflon (R)) eingebracht sein.
Abstract:
Ein flexibles, umlenkbares Zugorgan (16) wird für statische und dynamische Lasten, insbesondere für Personenlifte, Warenlifte, Krane und Fahrzeuge eingesetzt. Das Zugorgan (16) umfasst wenigstens eine Litze (18) aus zugfesten Einzelelementen (10), wie Fasern, Drähten und/oder Bändern. Wenigstens ein Teil der Einzelelemente (10) der Litze (18) ist durch eine Beschichtung (12) und/oder Füllmaterial in Form von Fasern (28) und/oder schüttfähigem Pulver beziehungsweise Granalien (30) in Abstand gehalten. Nach bevorzugten Varianten ist wenigstens ein Einzelelement (10) einer Litze (18) durch einen elektrisch gut leitenden Draht (46) oder einen optischen Leiter (44) ersetzt.
Abstract:
A synthetic rope for an elevator having improved resistance to compression and abrasion is provided and comprises a plurality of strands forming layers of the rope, each strand formed from a plurality of pre-twisted strands made from high modulus synthetic filaments. One or more of the strands or layers of strands may be impregnated with a lubricant, such as polytetrafiuoroethylene, to reduce the abrasion among the strands and substrands, and increase the service life of the rope. The exterior of the rope may be covered by a jacket that provides for traction with the drive sheave. An elevator system comprising the claimed rope is also provided.