Spiral grooved roller mechanism
AssigneeDeere & Company
InventorsChristopher S. Thorman, Richard D. Thier, Phillip O. Swenson
Life of this patent
Estimating the term…
Abstract
A roller mechanism for a reel mower cutting unit, wherein the roller includes a spiral member fixed with a central tube member. The spiral member includes a radially outer edge portion which rolls in contact with the ground during operation.
Claims13
A roller coupled with a reel mower cutting unit for contacting the ground and supporting the cutting unit above the ground for establishing the height at which vegetation is cut, said roller comprising:
- at least one spiral roller member having radially outer edge portions which contact the ground during operation for supporting the cutting unit above the ground, said ground contacting outer edge portions being spaced from each other to define spaces therebetween, said spiral roller member being rotatable about a laterally extending axis as the radially outer edge portions of the spiral roller member contact the surface of the ground during operation.
A cutting unit roller adapted to roll in contact with the ground for supporting the cutting unit above the ground, said roller comprising:
- at least one spiral roller member extending radially outwardly from a laterally extending axis, said spiral roller member extends in a spiral around the axis, and includes radially outer edge portions which roll in contact with the surface of the ground during operation of the cutting unit, and laterally adjacent edge portions are laterally spaced from one another.
A roller coupled with a reel mower cutting unit, said cutting unit having a cutting reel and a bedknife which cut vegetation with a shearing action, wherein said roller contacts the ground for supporting the cutting unit above the ground and for establishing the height at which vegetation is cut, said roller comprising:
- a laterally extending tube member coupled with the cutting unit for rotation about a laterally extending axis,
- at least one spiral roller member coupled with the laterally extending tube member, said spiral roller member having radially outer edge portions which contact the ground simultaneously during operation for supporting the cutting unit above the ground, said portions which contact the ground are spaced from each other to define spaces therebetween, said spiral roller member being rotatable about the laterally extending axis as the radially outer edge portions of the spiral roller member contact the surface of the ground during operation.
Dependencies are inferred from the claim text.