Control monitoring device for tower cranes
US6634514B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2001 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Mar 9, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C13/44
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to a control monitoring device for tower cranes, in particular for small cranes, with integration of functions, and adapted for radio control. The device comprises, in respect of all the movements of the crane, such as hoisting, rotation, distribution and translation, a monitoring/control electronic unit (2) receiving at its inputs and processing the control signal (4) originating from the radio control box (3), and also receiving signals (5, 8, 9, 13, 15, 17, 19, 21) originating from sensors (6, 8, 11, 18, 20, 22, 23, 24) and from switches (14, 16). The electronic unit (2) delivers start and stop commands (27, 30, 31, 33, 34) at its outputs, while monitoring the action of the speed regulators (28) or other control members (35, 36) assigned to the movements, as well as the action of the crane's safety devices (32).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.