Personnel lift incorporating an outreach mechanism for an aerial work platform
US5755306A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Jul 8, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F11/04
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An outreach mechanism (34) for an aerial work platform (22) on a personnel lift (20). The outreach mechanism (34) is designed to attach an aerial work platform (22) to the upper section (24A) of a vertical lift assembly (24) of a personnel lift (20). The outreach mechanism (34) includes scissors-like arms (38, 40) that extend between the aerial work platform (22) and the upper section (24A) of the vertical lift assembly (24). The upper ends of the arms (38, 40) are pivotally attached to the aerial work platform (22) and to the vertical lift assembly (24) at pivot points (46, 48). The lower ends (50, 52) of the arms (38, 40) slidingly engage channels (42, 44) attached to the aerial work platform (22) and to the upper portion of the vertical lift assembly (24). One of the lower ends (50, 52) of the arms (38, 40), namely, the lower end (50) of the arm (38) mounted in the channel (42) adjacent the aerial work platform (22), is affixed to a continuous chain (66). Rotation of the chain (66) by a handle (86) causes the chain (66) to move, which causes the lower end (50) of the arm (38) to move upwardly or downwardly. As the lower end (50) of the arm (38) is moved upwardly or downwardly, t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.