Patent classifications
D07B1/142
LOW SLIP SPLICE
A rope system (10, 20) comprising a splice structure (12, 22) with an intact portion (23) comprising at least 8 intact strands (32, 34), and a disassembled portion (26) comprising at least 4 loose strands (30), wherein the intact portion (23) is a braid of at least 4 S oriented (32) and at least 4 Z oriented intact strands (34), wherein at least one loose strand (30) of the disassembled portion (26) passes under and over intact strands (32, 34) of the intact portion (23), and at least one loose strand (30) passes under at least one X-tuck (38) of intact strands (32, 34). By this means the splice length can be minimized resp. slippage of the splice at high loads can be avoided.
Hoisting rope and hoisting apparatus
A hoisting rope for a hoisting apparatus has a longitudinal direction, a thickness direction and a width direction, and includes a group of load bearing members made of composite material comprising reinforcing fibers embedded in polymer matrix; and a coating encasing the group of load bearing members; wherein the load bearing members extend in an untwisted manner inside the coating parallel with each other as well as with the longitudinal direction of the rope throughout the length thereof, the load bearing members being substantially larger in width direction than in thickness direction of the rope and stacked against each other in thickness direction of the rope. An elevator includes the hoisting rope.
Rope structure with improved bending fatigue and abrasion resistance characteristics
A rope structure adapted to engage a bearing structure while under load comprises a plurality of fibers, a matrix, and lubricant particles. The plurality of fibers is adapted to bear the loads applied to the ends of the rope structure. The matrix surrounds at least a portion of some of the plurality of fibers. The lubricant particles are supported by the matrix such that at least some of the lubricant particles are arranged between at least some of the fibers to reduce friction between at least some of the plurality of fibers and at least some of the lubricant particles are arranged to be between the bearing structure and at least some of the plurality of fibers to reduce friction between the bearing structure and at least some of the plurality of fibers.
COMPOSITE ELONGATED BODY
The present invention relates to a composite elongated body (3), comprising high performance polyethylene HIPPE filaments (2) having a tenacity of at least 0.6 N/tex and a polymeric composition throughout (10) the composite elongated body, wherein the polymeric composition comprises a thermoplastic ethylene copolymer and a lubricant; and wherein the thermoplastic ethylene copolymer is a copolymer of ethylene and wherein said polymeric composition has a peak melting temperature in the range from 40 to 140 C. measured in accordance with ASTM E794-06. The present invention further relates to a lengthy body, an article and a crane comprising the composite elongated body: a method of manufacturing a composite elongated body: a method of manufacturing a lengthy body; and use of a polymeric composition.
Bend fatigue resistant blended rope
Disclosed is a blended rope having an outer sheath (8) enclosing at least a strength member (7), the strength member (7) having high-strength synthetic fibers, the strength member (7) being a blended strength member (7) formed with a combination of ARAMID fibers and HMPE fibers, the blended strength member comprising a non-homogeneous distribution of the ARAMID and HMPE fibers, wherein the weight ratio of ARAMID to HMPE in the strength member (7) is preferably a minimum of 80:20.
Method for producing a strand or cable
A method for producing a strand or cable, in which fibers and/or wires are twisted at a twisting point to form the strand or cable. The fibers and/or wires are coated with a liquefied matrix material before and/or at the twisting point and are embedded in the matrix material during twisting. The fibers and/or wires are immersed in the matrix material before and/or at the twisting point and the formed strand or the formed cable is cooled after the twisting in order for the matrix material to solidify, preferably by air or in a cooling liquid, for example water.
BEND FATIGUE RESISTANT BLENDED ROPE
A blended rope is provided having an outer sheath (8) enclosing at least a strength member (7), the strength member (7) having high-strength synthetic fibers, the strength member (7) being a blended strength member (7) formed with a combination of ARAMID fibers and HMPE fibers, the blended strength member comprising a non-homogeneous distribution of the ARAMID and HMPE fibers, wherein the weight ratio of ARAMID to HMPE in the strength member (7) is preferably a minimum of 80:20.