Patent ID: 7126728

Claim:
A linear guiding mechanism for an optical scanner, the optical scanner comprising: a casing having a hollow center; a driving system installed within the casing, wherein the driving system at least includes a driving belt; and an optical system within the casing, wherein the optical system at least includes a carrier chassis and a clamping structure, the clamping structure is attached to the carrier chassis, and clamped onto a portion of the driving belt; the linear guiding mechanism comprising: a V-shaped track positioned inside the casing in the same direction as the travel path of the carrier chassis, wherein the upper section of the V-shaped track includes a pair of support surfaces, the support surfaces extend in a direction parallel to the longitudinal direction of the V-shaped track, and the support surfaces form an included angle; and a positioning wheel attached to the carrier chassis, wherein the positioning wheel is supported by the support surfaces on the V-shaped track, and the axis of the positioning wheel is perpendicular to the longitudinal direction of the V-shaped track.