Patent ID: 8416040

Claim:
A joystick device in which an operation shaft having one end to which an operation knob is coupled is supported by a case to be tiltable from a neutral position about a tilting center set on an axis of the operation shaft, a cylindrical rotatable cylinder having one end joined to a dial knob and surrounding the operation shaft is supported by the case to be rotatable about the axis, and rotation position detection means for detecting a rotation position of the rotatable cylinder is provided between the other end portion of the rotatable cylinder and the case, wherein the rotation position detection means comprises: a drive gear provided around an outer periphery of the other end portion of the rotatable cylinder; a rotary body formed to have a smaller diameter than the rotatable cylinder and rotatably supported by the case at a side of the rotatable cylinder, the rotary body having a driven gear provided around an outer periphery of the rotary body, the driven gear being in mesh with the drive gear; a plurality of magnets provided on the rotary body to be spaced away from each other in a peripheral direction of the rotary body; and a magnetic sensor provided in the case in such a manner as to face the other end portion of the rotary body, so as to detect a rotation position of the rotatable cylinder based on positional change relative to the magnets along with rotation of the rotary body.