Patent ID: 7973529

Claim:
A sensor magnet holder for mounting a sensor magnet on a motor shaft, the sensor magnet being provided relative to a magnetic induction sensor on the non-moving side for obtaining a signal indicative of a rotational position of the motor shaft, comprising: a shaft press fit portion for press-fitting the motor shaft; a magnet rear end holding portion; and a plurality of snap fit board portions, wherein said shaft press fit portion, said magnet rear end holding portion and said snap fit board portions are integrally formed, said snap fit board portions extending from an inner diameter of said shaft press fit portion in an axial direction of the motor shaft, a magnet front end holding portion being formed at an extending tip over an outer diameter surface of each of said snap fit board portions, said snap fit board portions having flexibility, the sensor magnet having the same number of internal flat surfaces as a number of said snap fit board portions, each of said snap fit board portions properly contacting a corresponding one of the flat surfaces of the sensor magnet due to the flexibility while the sensor magnet being held between said magnet rear end holding portion and said magnet front end holding portion.