| 摘要 |
A brush encoder includes a coding-plate support member, to which a coding plate is fixed, and a brush support member, to which a brush is fixed, the brush having a base portion and resilient contact strips. The brush support member includes a support surface to which the base portion of the brush is mounted; at least one through slot through which the resilient contact strips of the brush extend to come in sliding contact with the coding plate; and a fulcrum portion, which contacts the base portion of the brush in the vicinity of a border between the base portion and the resilient contact strips, so as to serve as a fulcrum about which the brush is biased to rotate in a direction to make the base portion contact the support surface when the resilient contact strips are pressed against the coding plate.
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