Trench wall cutter
US5924222A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1997 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | Nov 13, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D17/13
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a trench wall cutter with a cutting frame and a gear shield attached thereto. There is at least one cutting wheel positioned to turn on the opposite shield sides, and on it roller-shaped excavation tools distributed over the periphery are pivotally mounted. When the cutting wheel is rotating the tools form a cutting wheel cutting surface which runs essentially axially parallel to the axis of rotation of the cutting wheel. To accommodate horizontal forces, at least one additional roller is pivotally mounted on each cutting wheel, the axis of the additional roller being directed substantially radially with respect to the axis of rotation of the cutting wheel. One jacket surface of the roller on the radial face side of the cutting wheel away from the gear shield projects in the direction of the axis of rotation of the-cutting wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.