Suspension load and tipping moment detecting apparatus for a mobile crane
US5711440A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | May 7, 1996 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | May 7, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C23/905
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a suspension load and tipping moment calculating apparatus for a mobile crane which can calculate a suspension load and a tipping moment with high accuracy and use an excessive load prevention load while ensuring safety. For this reason, the apparatus is provided with sensors (50, 48, 46) for detecting a boom length, a boom angle, and an axle weight of a boom derricking cylinder (26) on a second boom (28) side, and is equipped with a controller (38) for calculating a suspension load (Wa) suspended from the second boom (28) based on signals from these sensors. In addition, for calculating a tipping moment, a boom length sensor (44) and a boom angle sensor (42) on a first boom (24) side are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.