Fairlead mechanism
US6401370B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1999 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Oct 21, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/48
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A dragline comprising a main housing including a generally horizontal platform, a boom extending forwardly from the main housing, a bucket suspended from the boom, a winding drum mounted on the platform for rotation about a generally horizontal axis, a fairlead mechanism mounted on the platform forward of the drum, the fairlead mechanism including an upper sheave mounted on a generally C-shaped upper bracket for rotation relative thereto about a generally horizontal upper axis, the upper bracket opening rearwardly and being mounted on the platform for pivotal movement about a generally vertical axis, and a lower sheave mounted on a generally C-shaped lower bracket for rotation relative thereto about a generally horizontal lower axis rearward and below the upper axis, the lower bracket being substantially identical to the upper bracket, opening forwardly and being mounted on the platform for pivotal movement about the generally vertical axis, such that the vertical axis extends between the upper and lower sheaves, and such that the upper and lower sheaves are supported for pivotal movement independently of each other about the vertical axis, the fairlead mechanism having no sheaves …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.