초록 ▼

The low-profile, lightweight tiller of compact, uncluttered design is adapted to be rigidly mounted upon the rear, powered lifting links of a garden tractor so as to be raised and lowered by the latter between transport and ground-working positions. Driving power for the transverse rotor of the till

The low-profile, lightweight tiller of compact, uncluttered design is adapted to be rigidly mounted upon the rear, powered lifting links of a garden tractor so as to be raised and lowered by the latter between transport and ground-working positions. Driving power for the transverse rotor of the tiller is obtained by a direct drive connection with the power takeoff shaft of the tractor. A right angle gearbox located inside the open bottom housing for the rotor is supported by the rotor shaft itself and has an upwardly and forwardly directed input shaft that connects directly with a telescoping, universal joint drive line connection with the power takeoff shaft. A special telescopic construction of the rotor allows the same to be adjustably shifted through the gearbox in order that the rotor may be selectively laterally offset with respect to the tractor wheels, and the rotor housing is sectionalized such that opposite end sections thereof may be detached from one end of the central section and added onto the opposite end section to properly house the rotor when the latter is likewise offset.

대표청구항 ▼

A rotary tiller mountable on the two, parallel lower lift links of a three-point hitch of a tractive vehicle for direct drive by the vehicle power takeoff shaft having a rear end disposed between, above, and forwardly of the rear ends of said links, said tiller comprising: a support; a ground-workin

A rotary tiller mountable on the two, parallel lower lift links of a three-point hitch of a tractive vehicle for direct drive by the vehicle power takeoff shaft having a rear end disposed between, above, and forwardly of the rear ends of said links, said tiller comprising: a support; a ground-working rotor carried by said support for rotation about a horizontal axis extending transversely of the normal path of travel of the tiller; a gearbox unit on said rotor having output means drivingly coupled therewith and rotatable about said axis of rotation thereof, said gearbox unit further including an input shaft coupled with said output means, disposed normal to said axis, and projecting upwardly and forwardly from said axis; and a pair of mounts on said support above and forwardly of the rotor and on opposite sides of the axis of rotation of said input shaft for rigidly attaching the tiller to said links, said mounts including link-engaging pivotal coupling means and structure for holding said support against pivoting movement relative to said links about said coupling means when the links are raised and lowered whereby to permit raising and lowering of the tiller between ground-working and transport positions without changing the angle between said links and the axis of rotation of said input shaft, said input shaft having coupling means at its upper forward end adapted for connection to the vehicle power takeoff shaft through an intermediate drive shaft having an axis of rotation which remains sufficiently aligned with the axis of rotation of the input shaft during raising and lowering of the tiller between said ground-working and transport positions to transfer driving power to said input shaft and thereby permit the rotor to remain in operation during such raising and lowering of the tiller.