Motorized height access device for tower cranes
US9382099B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Sep 24, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F11/04
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A height access device enables motorized access to the driving station of a tower crane atop a mast formed of superposed mast elements. It includes a lift cabin installed inside the mast of the crane and movable vertically along the mast. The height access devices further includes a working platform positioned above and separably connected to the lift cabin. A coupling device provides a non-permanent connection of the working platform to the lift cabin and immobilizes the working platform relative to the mast at a required height. The height access device enables the crane driver to ascend and descend with the lift cabin alone when disconnected from the working platform and with the lift cabin and working platform together, particularly during the assembly and dismantling of the mast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.