Nested sheave arrangement for a telescopic boom and applications of same
US9527700B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2014 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Oct 1, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C23/703
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In one aspect of the invention, a telescopic boom includes a plurality of boom sections, and a sheave assembly disposed between two adjacent boom sections. The sheave assembly includes two sheave assembly sets. Each sheave assembly set includes a plurality of sheaves having different diameters. The plurality of sheaves is arranged abreast along a lengthwise direction of the adjacent boom sections and the diameters of the plurality of sheaves increase successively along the lengthwise direction of the adjacent boom sections. Each sheave is wound with one or more cables. The invention also discloses engineering machinery having the telescopic boom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.