Lawn tractor lift
OwnerLarry D. Morris, Terry L. Emondinventors
Life of this patent
Estimating the term…
Abstract
A lawn tractor lift consisting of a lift arm having a forward end and a rearward end, a tire wheel receiving cradle pivotally mounted upon the forward end of the lift arm; a lever arm having a forward end and a rearward end, and a curved bar providing a variable fulcrum, the curved bar having a forward end and a rearward end, and a pivot point, the rearward end of the curved bar being fixedly attached to or formed wholly with the forward end of the lever arm, the forward end of the curved bar being fixedly attached to or formed wholly with the rearward end of the lift arm, the curved bar, upon alternate levering and counter-levering of the lever arm, alternately rearwardly and forwardly moving the pivot point.
Claims8
A lawn tractor lift comprising:
- (a) a lift arm having a forward end and a rearward end, the lift arm comprising left and right lever bars;
- (b) tractor wheel mounting means fixedly attached to the forward end of the lift arm, the tractor wheel mounting means comprising a tire cradle having left and right ends;
- (c) a lever arm having a forward end and a rearward end, the lever arm comprising left and right lever bars;
- and,
- (d) variable fulcrum means having a forward end and a rearward end, the rearward end of the variable fulcrum means being fixedly attached to or formed wholly with the forward end of the lever arm, the forward end of variable fulcrum means being fixedly attached to or formed wholly with the rearward end of the lift arm, the variable fulcrum means having a floor contacting surface, the variable fulcrum means, upon alternate levering and counter levering of the lever arm, alternately moving the floor contacting surface rearwardly toward the rearward end of the lever arm and forwardly toward the forward end of the lift arm;
- the tractor wheel mounting means further comprising means for pivoting the tire cradle with respect to the lift arm, the means for pivoting the tire cradle with respect to the lift arm being connected operatively to the left and right ends of the tire cradle, the means for pivoting the tire cradle with respect to the lift arm being further connected operatively to the forward end of the lift arm, the variable fulcrum means comprising left and right curved bars, the left curved bar spanning between the left lever bar and the left lift bar, and the right curved bar spanning between the right lever bar and the right lift bar.
Dependencies are inferred from the claim text.