Abstract: A buckling device of a scanning head is installed at an initial position of an optic module of the scanner. A slot is formed on the casing of a scanner for being positioned and inserted by a swingable piece. Two lateral surfaces of the swingable piece are pivotally installed to a pair of shaft grooves on the casing by respective projecting shafts. The swingable piece has an upper stopper for being inserted into an engaging hole of the optic module. The swingable piece is installed with a lower stopper and a sliding groove is installed on the casing. A gate is installed in the sliding groove. A hooking piece protrudes from one end of the sliding groove for hooking one end of the spring at one side of the gate; another end of the spring is connected to a hook portion at an end surface of the sliding rod passing through another end of the gate. A transverse piece and a straight piece are installed on the sliding rod. The straight piece is buckled to a resisting surface at a bottom of the optic module.

Abstract: A type of platen type scanner driving mechanism (1), comprising mainly an optical module, an elastic component, a carrier table, a fixed lever, a wire and a driving unit that are located within a scanning device composed of an upper casing and a lower casing, driving the optical module to move and perform scanning operation, to save the driving force of the driving unit, and to reduce the turning distance.

Abstract: A platen type scanner driving mechanism has a supporting structure which includes an upper casing and a lower casing. A fixed lever extends longitudinally with respect to the support structure between the upper casing and the lower casing. An optical module is slidable along the fixed lever and extends transversely to the fixed lever. A single pulling wire is fixed by two spaced apart locations proximal to the center of the optical module, and a driving unit which drives the single pulling wire. The single pulling wire drives the optical module which is in parallel motion with respect to the fixed lever. The relative disposition of the single pulling wire, driving unit, and the optical module, prevents the optical module from being swung during displacement, reduces loads applied to the driving mechanism and optimizes the driving unit's force.