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US 5,013,016 AGranted
Positioning table
AssigneeSankyo Manufacturing Company, Ltd.
InventorHeizaburo Kato
Life of this patent
Estimating the term…
Abstract
A positioning table includes a pair of direct drive motors mounted on a flat surface of a base. One of the direct drive motor drives a parallel crank mechanism so as to move a table in one direction. The other direct drive motor drives an arm member connected to the table through a rail, so as to move the table in the other direction perpendicular to the one direction. Thus, the table can be moved in a common plane into a desired position by driving the pair of direct drive motors.
Claims3
A positioning table comprising:
- (a) a base;
- (b) first and second direct drive motors fixedly mounted on said base and having respective rotatable shafts directed upwardly;
- (c) a first arm member fixedly mounted at its proximal end on said rotatable shaft of said first direct drive motor;
- (d) a second arm member angularly movably mounted at its proximal end on said base;
- (e) a first rail to which distal ends of said first and second arm members are pivotally connected, said first rail cooperating with said first and second arm members to form a parallel crank mechanism;
- (f) first and second slide members mounted on said first rail for sliding movement therealong;
- (g) a third arm member fixedly mounted at its proximal end on said rotatable shaft of said second direct drive motor;
- (h) a third slide member pivotally mounted on a distal end of said third arm member;
- (i) a second rail on which said third slide member is mounted for sliding movement therealong;
- and
- (j) a table having a reverse surface to which said first and second slide members and said second rail are fixedly secured in such a manner that the direction of movement of said first and second slide members along said first rail is perpendicular to said second rail.
8 more elements
Dependencies are inferred from the claim text.