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US 9,850,615 B2Granted
Pulley for washing machine
AssigneeWhirlpool Corporation
InventorsThomas D. Kleinmanns, Kurt Werner
Life of this patent
Estimating the term…
Abstract
A pulley has a plastic body having a peripheral seat and a central hub defining a through opening, with teeth extending from the central hub into the through opening. A metal insert is located within the hub and has at least a portion circumscribing the through opening.
Claims19
A pulley comprising:
- a plastic body having:
- a central hub defining a through opening;
- plastic teeth extending from the central hub into the through opening;
- a shaft end bearing surface defined radially outward from the through opening;
- and
- a nut bearing surface defined radially outward from the through opening;
- and
- a metal insert located within the central hub and having:
- a collar circumscribing the through opening;
- and
- at least two legs extending from the collar and into the central hub;
- and
- wherein a first portion of the metal insert is substantially planar with the shaft end bearing surface and a second portion of the metal insert is substantially planar with the nut bearing surface and wherein the metal insert is in communication with the shaft end bearing surface and the nut bearing surface to carry axial load applied to the pulley when the pulley is assembled to a shaft with a nut;
- and
- wherein the plastic teeth are configured to carry rotational load applied to the pulley when the pulley is assembled to the shaft with the nut and the pulley is rotated around the shaft.
12 more elements
A laundry treating appliance comprising:
- a basket at least partially defining a laundry treating chamber;
- a rotatable clothes mover located in the laundry treating chamber;
- a drive shaft operably coupled to the clothes mover and having a first spline coupling with a plurality of teeth;
- and
- a drive pulley comprising a plastic body having a central hub defining a through opening, a shaft end bearing surface, and a nut bearing surface, with a second spline coupling with a plurality of plastic teeth extending from the central hub into the through opening, and a metal insert located within the central hub and having a first axial end collar having a continuous end circumscribing the through opening and a second axial end, opposed from the first axial end, and having a discontinuous end having at least two legs extending from the collar and into the central hub wherein a first portion of the metal insert is substantially planar with the shaft end bearing surface and a second portion of the metal insert is substantially planar with the nut bearing surface to carry axial load applied to the pulley when the pulley is assembled to the drive shaft;
- wherein the teeth of the first spline coupling mesh with the teeth of the second spline coupling to couple the drive shaft to the drive pulley and to carry rotational load applied to the pulley when the pulley is assembled to the drive shaft.
3 more elements
A pulley comprising:
- a plastic body having:
- a central hub defining a through opening;
- plastic teeth extending from the central hub into the through opening;
- a first planar surface defined radially outward from through opening configured to axially abut a shaft end and defining a first portion of a shaft end bearing surface;
- and
- a second planar surface defined radially outward from the through opening configured to axially abut a nut end and defining a first portion of a nut bearing surface;
- and
- a metal insert located within the central hub and having:
- a collar circumscribing the through opening and defining a second portion of the shaft end bearing surface;
- and
- at least two legs extending from the collar and into the central hub and defining a second portion of the nut bearing surface;
- and
- wherein the metal insert is configured to carry axial load applied the shaft end bearing surface and the nut bearing surface when the pulley is assembled to a shaft with a nut;
- and
- wherein the plastic teeth are configured to carry rotational load applied to the pulley when the pulley is assembled to the shaft with nut and the pulley is rotated around the shaft.
12 more elements
Dependencies are inferred from the claim text.