Patent ID: 8539858

Claim:
An accelerator device comprising: a support member configured to be affixed to a vehicle body; a first shaft rotatably supported by the support member; an accelerator pedal integrated with the first shaft and configured to rotate the first shaft according to a quantity of depression on the accelerator pedal; a rotation angle detection unit configured to detect a relative rotation angle of the first shaft to the support member; a pedal rotor integrated with the first shaft; rotors equipped to both sides of the pedal rotor in an axial direction, respectively, and relatively rotatable to the pedal rotor; first helical teeth integrated with the pedal rotor to project toward both the rotors, respectively, as being on a side in an accelerator closing direction; second helical teeth integrated with the rotors, respectively, to project toward the pedal rotor, as being on a side in an accelerator opening direction, the second helical teeth being configured to engage with the first helical teeth and to bias both the rotors toward the support member when the pedal rotor rotates in the accelerator opening direction, the second helical teeth being formed to enable the pedal rotor to rotate to the accelerator full-close position without interfering with the first helical teeth when the pedal rotor rotates in the accelerator closing direction; a first biasing unit configured to bias both the rotors in the accelerator closing direction; and a second biasing unit configured to bias at least one of the accelerator pedal, the first shaft, and the pedal rotor in the accelerator closing direction.