A detachable knob comprising: a knob housing configured to be manually rotated about a rotation axis (X), anchoring means placed inside the knob housing and configured to transit reversely between an engaged position and a disengaged position, characterized in that , the detachable knob further comprises: a plunger arranged inside the knob housing and axially displaceable along the rotation axis (X), wherein the plunger is configured to bring the anchoring means from their engaged position to their disengaged position and vice versa, biasing means arranged inside the knob housing to axially bias the plunger away from the anchoring means , wherein the plunger is axially displaceable relative to the anchoring means between two stable axial positions at axis (X), a first stable pushed-down position in which the plunger remains stable and force the anchoring means to their engaged or to their disengaged position, and a second stable release position in which the plunger remains stable and in which the anchoring means are in the other position of the respective engaged or disengaged position, and wherein the plunger is accessible from outside the knob housing to allow the plunger to be actuated pushed-down along axis (X), such that by pushing down the plunger , the plunger transits reversely between the first stable pushed-down position and the second stable release position. a knob housing configured to be manually rotated about a rotation axis (X), anchoring means placed inside the knob housing and configured to transit reversely between an engaged position and a disengaged position, characterized in that , the detachable knob further comprises: a plunger arranged inside the knob housing and axially displaceable along the rotation axis (X), wherein the plunger is configured to bring the anchoring means from their engaged position to their disengaged position and vice versa, biasing means arranged inside the knob housing to axially bias the plunger away from the anchoring means , wherein the plunger is axially displaceable relative to the anchoring means between two stable axial positions at axis (X), a first stable pushed-down position in which the plunger remains stable and force the anchoring means to their engaged or to their disengaged position, and a second stable release position in which the plunger remains stable and in which the anchoring means are in the other position of the respective engaged or disengaged position, and wherein the plunger is accessible from outside the knob housing to allow the plunger to be actuated pushed-down along axis (X), such that by pushing down the plunger , the plunger transits reversely between the first stable pushed-down position and the second stable release position. a plunger arranged inside the knob housing and axially displaceable along the rotation axis (X), wherein the plunger is configured to bring the anchoring means from their engaged position to their disengaged position and vice versa, biasing means arranged inside the knob housing to axially bias the plunger away from the anchoring means , wherein the plunger is axially displaceable relative to the anchoring means between two stable axial positions at axis (X), a first stable pushed-down position in which the plunger remains stable and force the anchoring means to their engaged or to their disengaged position, and a second stable release position in which the plunger remains stable and in which the anchoring means are in the other position of the respective engaged or disengaged position, and wherein the plunger is accessible from outside the knob housing to allow the plunger to be actuated pushed-down along axis (X), such that by pushing down the plunger , the plunger transits reversely between the first stable pushed-down position and the second stable release position. <EOS>