A visor assembly includes a visor body, a support arm and an anti-backlash device for selectively applying a clamping force on the support arm. The anti-backlash device includes first and second bushings, each having an end surface misalignable and engageable with each other, and an inner surface portion slidably engageable with the support arm. When the inner surface portions are aligned with each other, the end surfaces are misaligned. The anti-backlash device further includes a spring means biasing the end surfaces together for urging the end surfaces to align, thereby causing the inner surface portions to misalign and to apply the clamping force on the support arm. Sufficient rotational movement of one of the bushings, against the bias of the spring means, sufficiently realigns the inner surface portions to sufficiently release the clamping force such that the visor body may slide along the support arm.