Greensroller
OwnerJohn L. Humphreyinventor
Life of this patent
Estimating the term…
Abstract
A powered lawn mower of the type particularly adapted for mowing greens on golf courses and having a powered vertically adjustable reel cutting unit is converted into a greensroller when a vibratory roller unit is substituted for each reel cutting unit. The vibratory roller unit has a drum, an unbalanced shaft and a framework. The unbalanced shaft is rotatably mounted within the drum and the drum is rotatably mounted in the framework. When the greensroller is powered over a golf green, it provides a fast, smooth, consistent and somewhat firm playing surface without scalping or otherwise compromising the health of the grass.
Claims20
A greensroller comprising
- a lawn mower of a type having a power means for raising and lowering a lift bar from which a reel cutting unit has been removed, said reel cutting unit being driven by the power means and being of a type wherein a transversely extending cutting reel and bed knife assembly is carried by a frame, said frame having means for attaching the frame to said lift bar;
- and,
- a vibratory roller unit comprising a framework with a means for attaching the framework to said lift bar, a transversely extending drum rotatably mounted in the framework, said drum lifted in and out of contact with the ground under the greensroller by the lift bar and when in contact following the ground as the greensroller is moved and an unbalanced shaft driven by the power means and rotatably mounted within the drum whereby the unbalanced shaft applies a centrifugal force which is transmitted to the drum and applied to the ground under the drum as the drum rolls across the ground.
A greensroller comprising
- a lawn mower of a type having a pull frame and a hydraulic system for raising and lowering a lift bar from which a reel cutting unit has been removed, said reel cutting unit being driven by a hydraulic motor powered by the hydraulic system, said reel cutting unit being of a type wherein a transversely extending cutting reel and bed knife assembly is carried by a frame, said frame having means for attaching the frame to said lift bar and means for attaching the frame to the pull frame;
- and,
- a vibratory roller unit comprising a framework with a means for attaching the framework to said lift bar and to a pair of lift arms attached to the pull frame, a transversely extending drum rotatably mounted in the framework, said drum lifted in and out of contact with the ground under the greensroller by the lift bar and when in contact following the ground as the greensroller is moved and an unbalanced shaft driven by the hydraulic motor and rotatably mounted within the drum whereby the unbalanced shaft applies a centrifugal force which is transmitted to the drum and applied to the ground under the drum as the drum rolls across the ground.
A vibratory roller unit adapted for use on a lawn mower of a type having a power means for raising and lowering a lift bar from which a reel cutting unit has been removed, said reel cutting unit being driven by the power means and being of a type wherein a transversely extending cutting reel and bed knife assembly is carried by a frame, said frame having means for attaching the frame to said lift bar;
- said vibratory roller unit comprising a framework with a means for attaching the framework to said lift bar, a transversely extending drum rotatably mounted in the framework, said drum lifted in and out of contact with the ground by the lift bar and when in contact following the ground and an unbalanced shaft driven by the power means and rotatably mounted within the drum whereby the unbalanced shaft applies a centrifugal force which is transmitted to the drum and applied to the ground under the drum as the drum rolls across the ground.
A vibratory roller unit adapted for use on a lawn mower of a type having a pull frame and a hydraulic system for raising and lowering a lift bar from which a reel cutting unit has been removed, said reel cutting unit being driven by a hydraulic motor powered by the hydraulic system, said reel cutting unit being of a type wherein a transversely extending cutting reel and bed knife assembly is carried by a frame, said frame having means for attaching the frame to said lift bar and means for attaching the frame to the pull frame;
- said vibratory roller unit comprising a framework with a means for attaching the framework to said lift bar and to a pair of lift arms attached to the pull frame, a transversely extending drum rotatably mounted in the framework, said drum lifted in and out of contact with the ground by the lift bar and when in contact following the ground and an unbalanced shaft driven by the hydraulic motor and rotatably mounted within the drum whereby the unbalanced shaft applies a centrifugal force which is transmitted to the drum and applied to the ground under the drum as the drum rolls across the ground.
Dependencies are inferred from the claim text.