Rotary knob with a display
View Patent ↗A knob assembly comprising a rotary knob, a rotary actuated potentiometer and an electronic display. The rotary knob has a central opening and is configured to rotate. The rotary actuated potentiometer is actuated by rotation of the rotary knob. The electronic display is located within the central opening of the rotary knob. The electronic display does not rotate with rotation of the rotary knob.
1. A knob assembly comprising:
a rotary knob having a central opening, the rotary knob including a rear tube portion with a circular slot on an outer surface of the rear tube portion;
a knob shell including an inner cylinder, and an outer cylinder, the outer cylinder having an inner surface that includes at least one projection, the knob shell being configured to accent the rotary knob between the inner cylinder and the outer cylinder with the projection fitting within the circular slot of the rotary knob;
a rotary actuated potentiometer actuated by rotation of the rotary knob; and an electronic display located within the central opening of the rotary knob and connected to the knob shell, the electronic display being configured to fit between a plurality of flanges extending from a front surface of the inner cylinder;
wherein the electronic display does not rotate with rotation of the rotary knob.
2. The knob assembly of claim 1 , further including:
a circuit board having the rotary actuated potentiometer connected thereto.
3. The knob assembly of claim 2 , wherein:
the circuit board has a connector thereon, the connector including a plurality of electronic contacts located within openings in the connector; and
the electronic display includes a plurality of pins inserted into the opening of the circuit board to power the electronic display.
4. The knob assembly of claim 1 , further including:
a transfer gear transferring the rotary motion of the rotary knob to the rotary actuated potentiometer.
5. The knob assembly of claim 1 , wherein
the knob shell does not rotate with rotation of the rotary knob.
6. The knob assembly of claim 5 , further including:
a cap connected to the knob shell, the cap having a central aperture wherein the electronic display can be viewed through the central aperture.
7. The knob assembly of claim 1 , wherein:
the electronic display is a liquid crystal display.
8. The knob assembly of claim 1 , wherein:
the electronic display is a vacuum florescence display.
9. The knob assembly of claim 1 , further including:
a protective appliqué in front of the electronic display to protect the electronic display.