Boom articulation assembly for aerial boom sections
US6250485A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1997 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Jul 30, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F11/044
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A mobile aerial apparatus includes a lower boom and an upper boom and pivotally mounted to a pedestal. A lift cylinder pivots the lower boom. An articulated assembly includes a common pivot support secured to the articulated ends of the booms on a common axis. A link unit has a common pivot member on said common pivot axis. An upper boom cylinder unit has a cylinder pivotally connected on the common pivot axis and a piston rod connected to an upper boom connector of the link unit. A lower boom cylinder unit has a cylinder pivotally connected on the common pivot axis and a piston rod connected to a lower boom connector of said link unit. The connections to the link unit form a triangular assembly with the pivot axis being parallel to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.