Counter-balanced mobile device and crane
US12037227B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2019 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | May 24, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C23/76
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A counter-balanced mobile device and a crane are provided. The counter-balanced mobile device comprises a counterweight rack (10), a connection assembly (20), a transmission assembly (30) and a driving member (40), wherein the counterweight rack (10) is configured to be connected with a turntable (100), and the connection assembly (20) is configured to be connected with a counterweight (200); and the connection assembly (20) is rotatably connected with the counterweight rack (10), the driving member (40) is fixed on the counterweight rack (10) and is connected with the connection assembly (20) by the transmission assembly (30) to drive the connection assembly (20) to rotate, so that the distance from the connection assembly (20) to a set reference on the counterweight rack (10) is adjusted. The counter-balanced mobile device can change the position of the counterweight (200) relative to the turntable (100) under the condition that the counterweight amount is unchanged, so that the counter-balancing performance and the stability of the crane are improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.