US Patent 7246598 Accelerator pedal device

An accelerator pedal device is fixed through a housing to a car body. By pedaling on an accelerator pedal arm supported pivotally by the housing, the accelerator pedal arm and a interlocking member rotationally move integrally, and by a torsion spring provided between an accelerator pedal arm and a interlocking member, press force is applied to a detection part provided in the housing. The press force is output as an electric signal from the detection part through a controller to a drive part, whereby opening of a throttle valve is controlled.