Patent ID: 11925142
Assignee: ARIENS COMPANY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC A  F  H | IPC A  F  H

Claim 19:
20. An assembly for mounting a blade to a spindle shaft, the assembly comprising:
a first bearing surface on one side of the blade and frictionally engaging the blade, the first bearing surface rigidly coupled for rotation with the spindle shaft;
a second bearing surface on an opposite side of the blade;
a biasing mechanism in a gap between the second bearing surface and the blade;
a fastener operable to narrow the gap and deflect the biasing mechanism; and
a gap setting component extending through the biasing mechanism to prevent the fastener from narrowing the gap beyond a preferred gap size;
wherein the biasing mechanism surrounds the gap setting component and generates a blade coupling force in response to the gap achieving the preferred gap size;
wherein the blade coupling force generates a blade coupling friction between the blade and the first bearing surface to frictionally couple the blade and the spindle shaft for rotation together; and
wherein the blade slips with respect to the spindle shaft in response to the blade encountering a force resisting rotation of the blade to an extent that overcomes the blade coupling friction.