Abstract: In a device for positioning a tool in a working area wherein two spaced parallel horizontal guide tracks are provided and a guide slide is movably supported by each guide track, a coupler link is supported on each guide slide so as to be pivotable about a vertical pivot joint axis and the coupler links are joined to each other pivotably about another joint having an axis parallel to the vertical pivot joints of the coupler links, and a spindle extends from the other joint of the coupler links in alignment with the axis thereof so as to be linearly adjustable and is provided with a tool. The spindle with the tool is position-adjustable by linear movement of the guide slides along the tracks whereby the tool supported by the coupler links which are longer than the distance between the two guide tracks can cover also areas at opposite sides of the two parallel guide tracks.

Abstract: A device for positioning a tool within a predetermined working area includes two guides which are parallel to one another and run in a first coordinate direction, and on which in each case a guide slide is mounted in a longitudinally adjustable manner. The guide slides are connected by a supporting structure which carries the tool and which also permits a movement of the tool in a second coordinate direction. It is connected to the guide slides so as to be movable about in each case a first or second joint axis, respectively, parallel to a third coordinate direction. It includes two coupler links which are connected to one another by a third joint axis parallel to the first and second joint axes. Coaxially to this third joint axis, the supporting structure is provided with a spindle which carries the tool and is adjustable linearly in the direction of the third coordinate direction and independently thereof by a rotation angle about the third joint axis.