Storage means for jib for telescopic boom of mobile crane
US3968884A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1974 |
| Grant date | Jul 13, 1976 |
| Priority date | — |
| Expiry date | Dec 20, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C23/702
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A mobile crane has a multisection telescopic boom and an optionally useable lattice jib storable alongside the boom with the base end of the jib adjacent the point end of the boom. Improved jib storage support means are provided to facilitate storing and installing the jib. Thus, one side of the boom base section is provided with a pair of longitudinally spaced apart jib storage support assemblies. Each support assembly is pivotally mounted so that it can be swung between a jib-supporting position and a stored position. Each support assembly includes a laterally extending member which is tiltable between a horizonal and a downward position so that the jib can be easily swung thereonto for storage and then subsequently locked into horizontal position, whereupon locking brackets secure the jib on the support assembly. The point end of the boom fly section and the base end of the jib are provided with cooperating disconnectable hinge members for attacing the jib to the boom so that the jib can be swung horizontally between stored and installed positions. The point end of the boom fly section and the base end of the jib are also provided with connection means for securing the jib to th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.