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Synthetic fiber rope

A synthetic fiber and crane technology, applied in the field of crane equipment, can solve problems such as not being able to meet the fire prevention requirements of synthetic fiber ropes

Inactive Publication Date: 2003-10-15
INVENTIO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] With the devices described so far, failures of the rope structure and function caused by mechanical loads can be easily identified, but in this way the specific fire protection requirements imposed on synthetic fiber ropes are not well met

Method used

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Examples

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Embodiment Construction

[0017] figure 1 The perspective view of the figure shows that the aramid fiber strands 2 and the filling strands 3 together form a sheathed aramid fiber rope 1 arranged around a core 4. Between the inner strand layer 5 and the outermost strand layer 6 is formed a wear-reducing intermediate sheath 7 which is preferably irregularly contoured. The outermost strand layer 6 is covered by a cord sheath 8, preferably polyurethane or polyamide. A thinner wire 9 is helically wound on the outermost strand layer 6 along the entire length of the cord. The cord sheath 8 is extruded over the wire 9 so that it is embedded in the cord sheath material and covered by it.

[0018] The wire 9 consists of a metal alloy and is electrically conductive. Its resistance increases with temperature. The resistance is continuously sensed using a sense control device described further below. The composition of the alloy is chosen so that the wire melts in the range of 100 to 120 degrees Celsius. Pref...

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Abstract

A synthetic fibre cable(1), preferably of polyamide, according to the invention consists of a bundle of load-bearing synthetic material fibres(2) and at least one conductive temperature sensor element(9) participating in the cable(1). The temperature sensor element(9) forms, in dependence on the temperature, a conductive connection over the length of the cable(1), which connection is constantly monitored by measurement technology. The connection is interrupted at a checking control in the case of temperatures critical for the synthetic fibre cable(1). The temperature sensor element(9) in one embodiment is a fine wire melting at the critical temperature. The synthetic fibre cable(1) according to the invention is used in lift installations amongst other things as a safety device, especially as a fire alarm.

Description

technical field [0001] The invention relates to a synthetic fiber rope, in particular a synthetic fiber rope for use as a load-bearing element of a crane, the rope consisting of a bundle of reinforced load-bearing synthetic fiber material, and a crane having at least one load-bearing element connecting the crane cabinet and a counterweight Apparatus wherein the load-bearing elements are said synthetic fiber ropes. Background technique [0002] Replacing conventional wire ropes with reinforced synthetic fiber ropes is finding more and more applications, e.g. in applications where on the one hand very long rope lengths are required and on the other hand a starting point with the smallest possible moving mass is required for energy reasons. heavy equipment. [0003] Such synthetic fiber ropes are textile products of linearly reinforced chemical fiber materials, preferably aramides or polyamides, spun into strands and directly formed into ropes without being rotated. Two or mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D07B1/02B66B7/06D06H1/00D07B1/14
CPCG01K3/005D07B2501/2007D07B2201/2095D07B2301/302D07B1/145D07B1/14D07B2301/252
Inventor 克劳迪奥·迪安吉利斯
Owner INVENTIO AG
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