Mechanical drive apparatus for printers

Details Mechanical drive apparatus for printers Mechanical drive apparatus for printers

F - Mech Eng,Light,Heat,Weapons

16

H

74/205, 74/71

F16H 25/22 (2006.01) B41J 19/20 (2006.01)

Patent

CA 1145975

DRIVE APPARATUS Abstract of the Disclosure Disclosed is drive apparatus especially useful for con- trollably displacing the carrier of a printer, the drive apparatus including a lead screw having laterally spaced apart and floating threaded followers thereon. Intermediate the threaded followers are a first pair of preloaded springs which press the followers against the opposite flanks of the threads on the lead screw to thereby inhibit backlash intermediate the followers. A second pair of springs are mounted intermediate a bracket, which is fastened to the carrier, and at least one of the followers for effecting coupling between the carrier and the follower while controlling backlash therebetween. A pair of arms extend from the followers and are coupled to a restraining shaft in such a manner as to inhibit rotational movement of the arms (and thus the followers) while permitting motion of the followers in any perpendicular direction to the lead screw to accommodate runnout or eccentricity.

371893

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