Swivel frame
US8267217B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2010 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Feb 5, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/0883
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A swivel frame for a swivel work machine includes a swivel base plate supported on a traveling machine body to be pivotable about a swivel axis and mounting an engine at a rear portion thereof, a support bracket provided at a front end of the swivel base plate for supporting an excavator, a partition wall provided on the swivel base plate for partitioning space forwardly of the engine in the fore/aft direction, and a pair of right and left vertical ribs provided on the swivel base plate for interconnecting the support bracket and the partition wall. The swivel base plate is divided into a rear plate portion on the rear side thereof and a front plate portion on the front side thereof, the rear plate portion being formed of a plate thinner than the front plate portion. The rear plate portion and the front plate portion are fixedly connected to each other in such in a manner that upper surfaces thereof are flush each other. A rear portion of the front plate portion projects more rearward than the partition wall. A pair of vertical walls are formed on and project from the rear plate portion. Front portions of the pair of vertical walls project more forward than the rear plate portion a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.