Importance

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Abstract

A pair of laterally spaced, upwardly extending arms are pivotally attached at their lower ends to the sides of a wheeled frame for oscillatory movement about a horizontal axis. A transverse member is pivotally connected to the upper ends of the arms. A trio of rearwardly and downwardly extending arms are secured at laterally spaced locations to the transverse member and are oscillatable about an elevated horizontal axis, each of the last-mentioned arms having a sweeping unit in the form of a lawn rake or bristled broom attached to its rear or free end. Still another arm extends forwardly from the transverse member and has its forward end pivotally connected to a power-operated crank. As the machine is moved across the surface to be swept, as when raking a lawn, the rakes are repeatedly dragged forwardly, raised and then lowered so as to form a windrow of leaves and other debris. The movement of the rakes or brooms is at a much faster rate than the machine is pushed so that the ground is effectively raked or swept. A clutch arrangement permits the raking of sweeping movement to be halted at any time under the control of the walk-behind operator.

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First Claim