Drum for an excavator that can be used in particular for the production of vertical trenches in hard or very hard soils
US6944977B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2003 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Dec 31, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/205
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Excavator drum for the production of vertical trenches, including a cylindrical shell (22) mounted so sa to rotate about its axis of revolution and a plurality of excavating tools (28, 30) mounted on the external face of the shell. The tools include a plurality of first rollers (36) equipped with cutting elements (38) mounted so as to rotate about axes, the mid-plane of the rollers substantially merging with the mid-plane (P-P′) of the shell, and the length of which is less the an the length of the shell; and a plurality of pairs of second rollers (50, 52) equipped with cutting elements, the rollers of the same pair being mounted so as to rotate about cantilever axles (54, 56) each roller having a length at least equal to the distance that separates one end a first roller from the corresponding end of the shell, the casing of the external end of the second rollers being at least in the plane containing one end (32, 34) of the shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.