초록 ▼

A drive assembly is disclosed which incorporates two power take-off assemblies between an input and output drive for an earthworking machine. The power take-off assemblies each have a clutch operable independently of the other clutch for drivingly connecting the input and output drives for rotating

A drive assembly is disclosed which incorporates two power take-off assemblies between an input and output drive for an earthworking machine. The power take-off assemblies each have a clutch operable independently of the other clutch for drivingly connecting the input and output drives for rotating tines of the machine in opposite directions. A drive select mechanism is selectively movable between two different operating positions wherein the clutches of the power assemblies are respectively and alternatively actuated to establish the desired drive connection between the input and output drives.

대표청구항 ▼

In a combination tilling and cultivating machine having tines rotatably mounted on a frame supported on a pair of wheels and a rotary output drive supported on the frame for operating the tines responsive to operation of a power operated unidirectional rotary input drive, a reversible drive assembly

In a combination tilling and cultivating machine having tines rotatably mounted on a frame supported on a pair of wheels and a rotary output drive supported on the frame for operating the tines responsive to operation of a power operated unidirectional rotary input drive, a reversible drive assembly mounted on the frame for drivingly connecting the input and output drives and comprising an invertible handle bar mounted on the frame and movable into opposite tilling and cultivating positions, a single transmission input gear drivingly connected to the input drive, a transmission output shaft mounted on the frame for rotation in opposite directions and drivingly connected to the output drive, first and second power take-off assemblies between the input and output drives, the power take-off assemblies each having a face gear supported for free rotation on the transmission output shaft in continuous meshing engagement with the transmission input gear for driving the face gears in opposite angular directions, the first and second power take-off assemblies each having a clutch selectively operable independently of the other clutch, each power take-off clutch being movable between a normally disengaged position and an engaged position drivingly connecting the face gear of its respective power take-off assembly and the transmission output shaft for driving the output drive in a predetermined angular direction opposite that of the other clutch in each handle bar position, and a manually operable drive select mechanism selectively movable between first and second operating positions in either handle bar position for alternatively actuating the clutches of the first and second power take-off assemblies to establish a predetermined drive connection between the input and output drives.