Patent ID: 6499542
Filing Date: 2002-12-31
Classification: E02D

Abstract:
A roller vehicle for ground compaction, comprising a lower ground compacting means operating for compacting ground; leveling means operative for leveling the ground; an upper part which is vibration uncoupled from said lower ground compacting means, said leveling means being mounted on said vibration uncoupled upper part and being liftable and lowerable; means for lifting and lowering said leveling means and including at least one lifting device which is formed as a telescopable extendable and retractable cylinder unit and is inclined so as to be lifted inclined upwardly a support for said leveling means in its lower position after lowering, to prevent bending of said lifting device during leveling; a circuit for producing vibrations of said ground compacting means, and a circuit for lifting and lowering of said leveling means formed so that a same hydraulic oil circulates in said circuits, said upper part being clampable with said ground compacting means so that during leveling of a surface which is inclined at a predetermined angle relative to a horizontal by said leveling means, said upper part is not inclined.