Abstract: A control knob assembly includes a rotating shaft coupled with a controllable device. A base is fixed to a mounting surface where the rotating shaft extends therethrough. A fork includes a detent and a tab. The fork is positioned on top of the base and slidably engaged therewith. A gear includes teeth configured to receive the detent and an upper groove. The gear is positioned on top of the fork with the rotating shaft extending therethrough. A knob includes a cavity that is fixedly engaged to the rotating shaft above the base, fork and gear, with the tab extending radially outwardly from underneath the knob. A biasing member is secured to the knob and is configured to engage the gear upper groove such that when engaged the gear rotates with the knob. A set position is established and repositioned by engaging the tab.

Abstract: A control knob assembly includes a rotating shaft coupled with a controllable device. A base is fixed to a mounting surface where the rotating shaft extends therethrough. A fork includes a detent and a tab. The fork is positioned on top of the base and slidably engaged therewith. A gear includes teeth configured to receive the detent and an upper groove. The gear is positioned on top of the fork with the rotating shaft extending therethrough. A knob includes a cavity that is fixedly engaged to the rotating shaft above the base, fork and gear, with the tab extending radially outwardly from underneath the knob. A biasing member is secured to the knob and is configured to engage the gear upper groove such that when engaged the gear rotates with the knob. A set position is established and repositioned by engaging the tab.