Electrolux Home Products, Inc.

Kevin Carpenter

Paul Stoufer

Thomas Josefsson

Michelle Demers

David A Clemens

A self-centering mechanism for an appliance knob includes a shaft member defining a central axis, and a rotatable member engaged and rotatable with the shaft member about the central axis. The rotatable member defines a first arcuate slot opposed to a second arcuate slot. A first stationary pin extends through the first arcuate slot and a second stationary pin extends through the second arcuate slot. A centering member is pivotably engaged with the rotatable member about a pivot location, and is configured to contact the first and second stationary pins with the rotatable member disposed in a centered rotational position. A biasing member is configured to bias the centering member about the pivot location toward the shaft member and the first and second stationary pins to urge the rotatable member to the centered rotational position.

Self-centering mechanism for an appliance knob

A self-centering mechanism for a rotatable shaft includes first and second centering members. Each centering member defines a first and second arcuate slot. A stationary pin extends through the first arcuate slots of the centering members. A rotatable shaft member extends through the centers of the centering members and is disposed between the first and second arcuate slots. A support member extends radially from and is fixed to the shaft member so as to be rotatable therewith. An actuating pin extends from the support member and through the second arcuate slots, and engages the second arcuate slots to rotate one of the first and second centering members. At least one biasing member is in communication with an anchoring structure and rotationally biases at least one of the first and second centering members to a registration position upon release of the rotatable shaft.

Self-centering mechanism for a rotatable shaft

A knob assembly is provided that includes a knob having a rotatable shaft, a rotatable first circuit board rigidly attached to the rotatable shaft, and a fixed second circuit board positioned near the first circuit board. The first circuit board includes an encoding portion configured to provide positioning data of the knob, and an eccentric rotating mass (ERM) motor mounted to the rotatable, first circuit board with a shaft of the ERM motor perpendicular to the rotatable shaft of the knob. The ERM motor is configured to produce and transfer vibration to the rotatable shaft of the knob. The second circuit board includes a sensor configured to determine a position of the first circuit board and thereby the knob at least in part from the positioning data provided by the encoding portion.

Growing community of inventors

Morrisville, NC, United States of America

Kevin Carpenter