Reel assembly for mower
AssigneeT.I. International, Inc.
InventorDonald F. Cotton
Life of this patent
Estimating the term…
Abstract
A mechanism for use in a reel type lawn mower for maintaining a constant uniform pressure between V-shaped reel blades and a bedknife. The blades are arranged to maintain continuous contact with the bedknife on both sides of the center of the reel. A biasing unit acts between the reel unit and the bedknife unit to apply a regulated pressure on both sides of the reel center.
Claims11
Apparatus for automatically maintaining the reel of a lawn mower in adjustment with the bedknife of the mower that includes
- a frame,
- a bedknife unit for supporting a bedknife in said frame,
- a reel unit rotatably mounted in the frame adjacent to the bedknife,
- said reel unit being divided into two adjacent, axially-aligned half-sections,
- each half-section further including a series of spaced-apart, radially disposed discs and a plurality of helically-shaped blades mounted upon the outer periphery of said discs, said blades extending transversely across each half-section from the center of the reel to the outer edge thereof,
- said helical blades being mounted in pairs on the adjacent half-sections with the inner edge of each pair being juxtaposed at the center of the reel, said blades being twisted in the direction of rotation of the reel so that at least one blade on each half-section is capable of contacting the bedknife at any given time, and
- biasing means for automatically maintaining a constant, uniform contact pressure between the blades and the bedknife as the blades move over the bedknife.
Apparatus for automatically maintaining the reel of a lawn mower in adjustment with the bedknife of the said apparatus including,
- a frame having two spaced apart side plates extending outwardly from said frame,
- a reel unit mounted for rotation between the said plates, said reel unit further including a plurality of chevron shaped blades mounted thereon with the point of the chevron being located at the center of the reel and the blades of the chevron being twisted in the direction of rotation of the reel,
- a bedknife unit pivotally mounted in said side plates adjacent to the reel unit having a bedknife that is arranged to contact each chevron blade on either side of the chevron point as the blade moves thereover,
- an adjustable biasing means acting upon the bedknife unit for maintaining a constant uniform pressure between the bedknife and the chevron blade,
- wherein said bedknife further includes a pair of raised rocker arms being positioned on either side of the reel center and said biasing means further includes a spring means action on each of the rocker arms.
Dependencies are inferred from the claim text.