transport and base vehicles for forestry and related areas

摘要

The present invention concerns a vehicle comprising a chassis frame (1);drive arrangements (2) and cab (3);which chassis frame (1) comprises one longitudinal bearing beam structure (10) and two longitudinal bearing beam structures (10) and two pivot axes (110, 120) arranged in the middle of the said beam structure (11, 12);Arranged to allow a controlled pendulum movement in a transverse plane of the said longitudinal direction, in which each pendulum axis (11, 12) is additionally connected to the said beam structure (10) by means of a telescopically active positioning device (4) and at its ends it is equipped with wheels (5);where at least one wheel wheel (5) is equipped with a steering mechanism (6) and at least one wheel (5) is connected to the said drive arrangements (2) for the propulsion of the said vehicles, the said chassis harness (1) is equipped with a gyroscopic sensor (7) which feeds signals to a steering unit (8) equipped to steer the said positioning arrangements (4) to keep the chassis arm (1) in a predefined position in the lateral position during operation.