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US 4,288,710 AGranted
Drive mechanism
AssigneeAmerican Optical Corporation
InventorW. Duane Hamilton
Life of this patent
Estimating the term…
Abstract
Driving an object along a given path with a standard pitch lead screw operated by a stepping motor. Adjustment is provided for accurately completing, with full motor steps, various excursions of object travel ordinarily requiring less than a full motor step for completion of the travel. The above is accomplished by driving the lead screw askew of the axis of desired object travel.
Claims5
Apparatus for driving an object along given path with a lead screw operated by a stepping motor wherein the improvement comprises:
- a main support for said apparatus having a slideway and slide thereon, the latter carrying said object for movement along said given path;
- a bracket supporting said lead screw and motor, said bracket being pivotally connected to said main support for selective angular adjustment of axial direction of said lead screw relative to said given path;
- means pivotally interconnecting said slide and lead screw for moving said slide along said slideway with operation of said lead screw;
- and
- means for selectively locking said bracket in various positions of said angular adjustment thereof.
2 more elements
Dependencies are inferred from the claim text.