To provide a throttle control device of an electronic control type in which a wave washer 9 and a drive motor 3 are assembled to an optimal position in an motor assembling part 19 of a motor housing 70 without causing the deterioration of a function as the wave washer 9.
The wave washer 9, which is biased in the direction in which the drive motor 3 is pressed against a motor assembling flange 29 of a front frame 23 fastened to the external wall face of a throttle housing 8, is interposed between the second bottom 32 of the drive motor 3 at an end yoke 30 side and the second bottom 72 of the motor assembling part 19 of the motor housing 70. The rear end of a motor shaft 25 of the drive motor 3 is rotatably supported by a thrust bearing 26, thus improving the anti-vibration property of the drive motor 3 and enabling the sure positioning of the drive motor 3 itself in the motor assembling part 19 of the motor housing 70.
ARAI MASAHITO
MIYAZAKI SHINSUKE
