Modular flywheel holesaw system
AssigneeMe3, Inc
InventorJohn D. Davis
Life of this patent
Estimating the term…
Abstract
A flat flywheel body fabricated by water jet cutting has radial spoke pairs with a display hanger slot in between and flywheel weights circumferentially extending at their peripheral ends. Resilient thin attachment rims for the saw blades are circumferentially connecting the flywheel weights and provide together with them a continuous peripheral sliding surface. A two piece arbor is connected to a central continuous spline of the flywheel body. The peripheral saw blades are bent into concentric curvature by radially clamping them onto the blade attachment rims.
Claims19
A modular flywheel holesaw system comprising:
- a holesaw arbor for coupling the modular flywheel holesaw system to a powered rotation source;
- a flywheel body comprising:
- at least three flywheel spokes;
- a rim attached to the spokes, with the rim comprising at least three blade attachment rim portions that are each circumferentially connecting adjacent ones of the flywheel spokes, each of the blade attachment rim portions defining an inner blade recess that is recessed radially, with each blade recess opening inwardly toward the holesaw arbor;
- and
- at least three saw blades that are each attached to the rim and positioned at least partially within one of the inner blade recesses in the blade attachment rim portions between adjacent ones of the flywheel spokes.
A flywheel holesaw blade comprising:
- a blade body;
- a cutting edge;
- a top edge that is at an opposite end of the blade body from the cutting edge;
- a pre-bend hole that is positioned centrally between the cutting edge and the top edge;
- and
- one or more blade positioning holes, with the one or more blade positioning holes comprising a plurality of fastener receiving hole areas that are different distances from the cutting edge.
A method comprising:
- positioning blades of a holesaw that is configured to rotate around an axis so that the blades are circumferentially spaced around a flywheel body of the holesaw, with each of the blades comprising a cutting edge and a top edge that is opposite the cutting edge, and with the positioning of the blades comprising, for each of the blades:
- tightening at least one fastener onto the blade in an area that is centrally located between the top edge and the cutting edge of the blade, with the tightening pressing the blade against a curved surface of the flywheel body and generating a pre-bend curvature of the blade to conform the blade to the curved surface of the flywheel body;
- following the tightening that generates the pre-bend curvature, adjusting a position of the blade to a new position that is different from a position of the blade during the tightening that generates the pre-bend curvature, with the adjusting of the position of the blade changing a distance between the cutting edge and the flywheel body in a direction of the axis;
- and
- securing the blade to the flywheel body in the new position, with a curvature of the blade in the new position matching the pre-bend curvature.
Dependencies are inferred from the claim text.