Article carrying and unloading device
US4138159A · kind A · utility
Inventor
Key dates
| Filing date | Aug 8, 1977 |
| Grant date | Feb 6, 1979 |
| Priority date | — |
| Expiry date | Aug 8, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S414/124
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An article carrying and unloading device primarily designed to transport and unload at specific locations large, substantially cylindrical bales of hay or the like. A support frame which may be in the form of a mobile trailer has one or more cradle assemblies pivotally connected to the support frame and, accordingly, movable between a carrying and an unloading position. At least one cradle support assembly is disposed in at least partially supporting relation between each cradle assembly and the support frame wherein this cradle support assembly is movable relative to the support frame by manipulation of a locking element allowing displacement of the one cradle assembly and thereby removal of a primary support such that gravity, and weight of the carried article, automatically forces the cradle assembly from its carrying to its unloading position. The mounted disposition of the cradle assembly in its carrying position is oriented to be slightly askewed such that the bale or article carried is maintained in a slightly weight biased position against one cradle side. This off-center weighted position services to automatically transfer the cradle assembly to its unloading position upon…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.