X-Y Movement mechanism
AssigneeFuji Photo Film Co., Ltd.
InventorsMakoto Murakoshi, Tamotu Yoshizawa
Life of this patent
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Abstract
An X-Y movement mechanism, having right-handed and left-handed lead screws arranged in parallel with each other and drive sources for individually rotating the lead screws. Gears placed over nuts engage the lead screws, the gears having teeth coaxially with said nuts. A base plate, either flat or cylindrical has a stage slidable thereon. A rack is fixedly provided on the stage to engage the gears. The gears operate as a gear transmission mechanism permitting the rack to move in a direction perpendicular to the direction of the axes of the lead screws and in the direction of the axes of the lead screws.
Claims13
An X-Y movement mechanism, comprising a right-handed screw and a left-handed screw arranged in parallel with each other;
- drive means for individually rotating said lead screws;
- gear means mounted on said screws;
- a base plate;
- a stage movable with respect to said base plate;
- and a rack fixedly provided on said stage to engage said gear means wherein said gear means operate as a gear transmission mechanism permitting said rack to move in a direction perpendicular to the direction of the axes of said screws or in the direction of the axes of said screws.
Dependencies are inferred from the claim text.