Device for actuating an articulated mast

Details Device for actuating an articulated mast Device for actuating an articulated mast

2003-06-30

2010-06-01

Tran, Khoi (Department: 3664)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

C701S001000, C701S050000, C198S657000, C198S666000, C198S670000, C198S318000, C222S526000, C222S527000, C222S530000, C222S533000, C212S276000, C212S223000, C212S255000, C212S347000

Reexamination Certificate

active

07729832

ABSTRACT:
A large manipulator with an articulated mast (22) is pivotally connected to a mast base (21) that is rotatable about a vertical axis. The mast (22) comprises at least three mast arms (23to27) which are pivotable to a limited extent about horizontal articulated axis (28to32) that are located parallel to each other, the pivoting movement being relative to the mast base (21) or an adjacent mast arm (23to27) and being performed by means of a respective drive unit (34to38). A control unit is provided with coordinate transformer (74, 76) which responds to a given guiding parameter (r) and measured angular values (εγ) that are determined by means of angle sensors (44to48) located on the mast arms (23to27). The coordinate transformer (74, 76) does a conversion into movement signals (Δαv) for the drive units (34to38) in accordance with predefined path/slew characteristics, the movement signals being related to the articulation axis. In order to make the inventive device lighter and easier to build, geodetic angle sensors (44to48) which determine earth referenced angular values (εγ) that are assigned to the individual mast arms (23to27) are disposed in a rigid manner on the mast arms (23to27).

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