摘要:
An insulating rope includes: a non-conductive core; an extruded thermoplastic jacket disposed around the core; and a water adsorbent material disposed between the jacket and the core. A method of making an insulating rope is also described.
摘要:
A belt for suspending and/or driving an elevator car includes a plurality of tension elements extending longitudinally along a length of the belt and a plurality of fibers interlaced with the plurality of tension elements forming a composite belt structure. A coating at least partially encapsulates the composite belt structure to improve two or more operational characteristics of the belt. A method of forming a belt for suspending and/or driving an elevator car includes forming a plurality of tension elements and arraying the plurality of tension elements longitudinally along a belt. A plurality of fibers are interlaced with the plurality of tension elements to form a composite belt structure. A coating is applied to at least partially encapsulate the composite belt structure to improve at least two operational characteristics of the belt.
摘要:
A belt for an elevator system is provided having a core and an elastomeric sheath positioned over the core. An elastomer and phosphonate blended bonding agent adheres the core to the sheath.
摘要:
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
摘要:
A patient lifting device includes an infection control lift strap with an inner core and an outer plastic layer that can be easily and effectively cleaned with standard disinfectant. The lift strap includes a waterproof sealed belt clamp assembly. A winch assembly includes a motor and high-efficiency gear assembly that lifts and lowers the strap with a spool assembly including an eccentric cylindrical spool. The eccentric cylindrical spool eliminates inconsistent performance of the lifting device as the strap drapes and coils onto the spool without raised attachment points. The strap includes top and bottom layers with different coefficients of friction to prevent slipping and self-tightening of the strap on the spool. The lifting device includes a thickness roller, a strap guard, and an electro-mechanical brake that locks the motor and prevents back driving. The gear assembly provides back driving when power is removed and the brake is released.
摘要:
A belt for drive technology having a belt body made from two polymer materials (A) and (B) with elastic properties and including a top layer as the belt back and a substructure with a force transfer zone and a tension member embedded in the belt body. The first material (A) contains 15 to 50% w/w of at least one fire-resistant additive and is used everywhere in the belt body where high mechanical properties are not required and the second material (B) contains 5 to 35% w/w of at least one fire-resistant additive and is used in the are of the belt body that is subjected to the highest mechanical stresses. The belt is particularly used as a tractive element for hoisting technology.
摘要:
A traction device includes tension members (2) coated with an elastomer material to form jacketed tension members (3). The jacketed tension members (3) are arranged next to each other in a plane in the cross section of the traction device, at such a distance from each other that there is a clear space (6) between each two mutually adjacent ones of the jacketed tension members (3). The jacketed tension members (3) are connected at the back thereof by a back layer. The clear space (6) begins on the side facing away from the back layer (4) and extends at least beyond the center point (5) of the tension member, and the ratio of the second diameter (d2) of the jacketed tension member (3) in relation to the first diameter (d1) of the tension member (2) is between 1.05 and 2.25. The invention is also directed to a traction system which includes the traction device which can be driven by at least one traction sheave (9), and each jacketed tension member (3) engages in a corresponding groove (10) of the traction sheave (9). The back layer (4) is arranged on the side of the jacketed tension members (3) that faces away from the side engaging in the grooves (10) of the traction sheave (9). At least one tension member (2) engages in the corresponding groove (10) of the traction sheave (9) by between 5% and 25% of its diameter (d1).
摘要:
An elevator load bearing member assembly includes at least one roughened surface (46) on a polyurethane jacket (44). In one example, mechanical roughening is used to roughen the surface (46) after the jacket has been extruded onto tension members (42). In another example, the temperatures used for molding a jacket (44) are controlled to induce melt fracture and roughen the surface (46) during the forming process. Other examples include chemically roughening the jacket surface and using localized heating to roughen the surface. The roughened jacket surface improves friction characteristics of a load bearing member assembly.
摘要:
An exemplary elongated elevator load bearing member of a traction elevator system includes a plurality of tension elements. A plurality of weave fibers transverse to the tension elements are woven with the tension elements. The weave fibers define at least one traction surface of the load bearing member.
摘要:
An exemplary method of making a woven fabric includes weaving a plurality of load supporting tension members and a plurality of cross fibers together into a woven fabric. A spacing between adjacent ones of the tension members has a first dimension. At least some of the cross fibers are shrunk to thereby decrease the spacing between the adjacent ones of the tension members to a second, smaller dimension. In another example, two woven fabrics are positioned next to each other. The two fabrics include a spacing between adjacent tension members having a first dimension. At least one tension member of one woven fabric is aligned with and between two of the tension members of the other fabric to thereby decrease the spacing to a second, smaller dimension.