Patent ID: 7572991

Claim:
A knob assembly, which executes a plurality of default commands, comprising: a manipulator, rotatably pivoted and linearly displaced to the electronic device, wherein the manipulator is in an initial position at a normal state and at least has a first movement direction and a second movement direction along which the manipulator is rotated to swing back and forth, and a third movement direction along which the manipulator is pressed to move linearly, wherein the manipulator comprises: a control unit, having a control panel and a bearing portion in normal direction of the control panel; and a rotation unit, integrated with the control unit into one piece and pivoted to the electronic device, wherein the rotation unit has a chute and a guide slot adjacent to the chute in a pivoting position, the guide slot has a stopping hole in the third movement direction; and the electronic device further has a fixed shaft extruding into the chute and a fixed rod extruding into the guide slot; an elastic member, bearing against the manipulator and keeping the manipulator in the initial position; and a plurality of push switches, disposed adjacent to the manipulator corresponding to the first movement direction, the second movement direction, and the third movement direction, such that the manipulator selectively moves towards the first movement direction, the second movement direction, and the third movement direction, wherein if the manipulator touches the corresponding push switch, a trigger signal is output; if the manipulator is released from the push switch, the trigger signal is switched off.