Stabilizer for a gantry crane lift frame
US5715958A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1995 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Jan 24, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C19/007
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A gantry crane 10 is provided having a gantry structure 12 with a pair of front support legs 18 and 20 and a pair of rear support legs 26 and 28. A lift frame 14, having opposed first and second ends 14a and 14b, is suspended from the gantry structure 12. A stabilizing beam 68 operatively connects the lift frame 14 to the gantry structure 12 to prevent sway of the lift frame 14. The stabilizing beam 68 is positioned between the pair of front support legs 18 and 20 and the pair of rear support legs 26 and 28. Preferably, the stabilizing beam 68 is connected proximate a longitudinal center of the lift frame 14. The stabilizing beam 68 is connected to vertical guides 70 and 72 that are connected to the gantry structure 12 so as to be vertically moveable along the guides 70 and 72. A four corner cross-reeving/clutch system 79 is provided to dampen rotational sway of the ends 14a and 14b of the lift frame 14. A gimbal 100 is provided for connecting the stabilizing beam 68 to the lift frame 14 to permit rotation of the lift frame 14 in a horizontal plane about a vertical axis, and rotation of the lift frame about a horizontal axis. The connection between the stabilizing beam 68 and verti…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.