Crane, in particular mobile crane with a narrow track and enlarged supporting base
US8225947B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2010 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Nov 15, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C23/80
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A mobile crane includes an undercarriage with a middle section and two parallel crawler carriages; a superstructure on which a boom is mounted, the superstructure being connected to the undercarriage by a rotary joint; two longitudinal outriggers connected to the undercarriage and extending in the longitudinal direction between the crawler carriages; and two transverse outriggers connected to the undercarriage and extending outside the crawler carriages. One of the longitudinal outriggers has an end with a transverse beam supported by spaced apart outrigger cylinders which provide an extended tipping edge to further stabilize the crane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.