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US 12,179,513 B2Granted
Caster wheel assembly for an outdoor power equipment machine
AssigneeMTD Products Inc
InventorRyan Cmich
Life of this patent
Estimating the term…
Abstract
A caster wheel assembly for an outdoor power equipment machine includes a wheel mount and provides a double bell-shaped caster wheel including two bell-shaped halves, each bell-shaped half includes a central hub, a smooth transition portion, an outer circumferential rim, and a planar face. A ground contacting tread can be provided by the outer circumferential rims. A ground contacting tread can be provided by a resilient tread ring positioned between the two bell-shaped halves.
Claims17
A caster wheel assembly, comprising:
- a double bell-shaped caster wheel comprising two bell-shaped halves, wherein each bell-shaped half comprises a central hub, a smooth transition portion, an outer circumferential rim, and a planar face;
- a wheel mount;
- wherein the wheel mount further comprises a spindle, a mount body having a first elongate aperture receiving the spindle and a second aperture receiving an axle, and wherein the mount body is positioned between the bell-shaped halves;
- wherein each bell-shaped half is described by a surface of revolution defined by a generatrix curve and an axis of revolution corresponding to the axle;
- and
- wherein the generatrix curve has two distinct convex regions and one concave region relative to the axis of revolution.
3 more elements
A caster wheel assembly, comprising:
- a double bell-shaped caster wheel comprising two bell-shaped halves, wherein each bell-shaped half comprises a central hub, a smooth transition portion, an outer circumferential rim, and a planar face;
- a wheel mount;
- wherein the wheel mount further comprises a spindle, a mount body having a first elongate aperture receiving the spindle and a second aperture receiving an axle, the axle rotatably engaged with the central hub of each bell-shaped half;
- wherein the outer circumferential rim of each bell-shaped half comprises a limited surface area ground contacting portion;
- wherein each bell-shaped half is described by a surface of revolution defined by a generatrix curve an axis of revolution corresponding to the axle;
- and
- wherein the generatrix curve has two distinct convex regions and one concave region relative to the axis of revolution.
4 more elements
A caster wheel assembly, comprising:
- a first bell-shaped half having a first central hub, a first smooth transition portion, a first outer circumferential rim, and a first planar face;
- a second bell-shaped half having a second central hub, a second smooth transition portion, a second outer circumferential rim, and a second planar face;
- a wheel mount having a spindle, a mount body having an elongated first mount aperture receiving the spindle and a second mount aperture receiving an axle;
- wherein the mount body is positioned between the first planar face and the second planar face;
- wherein each bell-shaped half is described by a surface of revolution defined by a generatrix curve an axis of revolution corresponding to the axle;
- and
- wherein the generatrix curve has two distinct convex regions and one concave region relative to the axis of revolution.
4 more elements
Dependencies are inferred from the claim text.