Rope for elevator and manufacturing method therefor
US10443191B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2015 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Oct 20, 2036 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD07B2501/2007
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The present invention relates to a rope for an elevator. The rope for the elevator comprises: a center strand formed by twisting a plurality of wires; inner layer strands formed by twisting the plurality of wires and arranged along the outer periphery of the center strand; and outer layer strands formed by twisting the plurality of wires and arranged along the outer periphery of the inner layer strands, wherein ten of each of the inner layer strands and the outer layer strands are prepared, the diameter of the center strand, the diameter of the inner layer strand and the diameter of the outer layer strand are respectively 0.33-0.35 times, 0.13-0.15 times and 0.22-0.24 times as large as the diameter of a first imaginary circle circumscribed around the outer layer strands, and a fill factor is 64-67%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.