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US 4,322,936 AGranted
Self clearing raking attachment for mower
OwnerSherwood W. Whitneyinventor
Life of this patent
Estimating the term…
Abstract
The invention relates to a raking device which includes a raking head composed of a plurality of raking tines which are moved over the ground, adapted for coupling same to a riding lawn mower or other suitable vehicle for propulsion power and providing means for a riding operator. The invention additionally providing a unique means of unloading the rake and clearing the tines of clogged material, serving greatly to expedite the completing of the raking operation.
Claims3
A self-cleaning raking attachment for the front end of a riding lawn mower or other powered vehicle comprising;
- a generally U-shaped frame member having a forward end and a rearward end,
- means at the rearward end for coupling said frame member to the front end of said mower or said vehicle,
- a pair of swivel wheels mounted at the forward end of the frame member for supporting said attachment above the ground, a first and a second shaft member mounted transversely of the frame and mounted on said frame member spaced from each other in a forward and reward direction, a first set of tines attached to said first shaft member, a second set of rigid finger-like tines attached at right angles to said second shaft member to form a comb-like structure, each of said tines of said second set extending between the tines of the first set, means mounting said first and second shafts permitting partial rotation of said shafts, a first and second arm extending radially upward from each of said shafts, a third arm rotatably connected to each of said first and second arms by pins forming a parallel linkage with said frame member,
- a handle extension arm connected to said third arm extending rearward for adjusting the degree of rotative angle of said shafts,
- a lift arm secured to said frame member for raising the frame member, said lift arm extending rearward, a foot pedal mounted at the rear of the lift arm for control by an operator,
- a fulcrum element mounted fixed relative to said mower or said vehicle and operably extending to said lift arm providing the fulcrum point for lifting said frame,
- whereby upon lifting of said frame by said operator cleaning of the first set of tines is accomplished by said second set of tines.
4 more elements
Dependencies are inferred from the claim text.