Abstract:
There is disclosed a threaded spindle and sleeve means including an externally threaded spindle means, a sleeve means surrounding the same and means for guiding the rotary and translatory movements of the spindle means relative to the sleeve means comprising at least one rolling contact bearing unit including inner and outer races, disposed to lie in a plane oblique to the axis of the spindle with the outer race secured in the interior of the sleeve means and the inner race engaging the thread of the spindle.
Abstract:
A drive mechanism is provided for backlash-free conversion of a rotary motion into a linear motion with the aid of a toothed belt and of a drive gear, in particular for a quick and reproducible positioning of tools or tool tables. At least one gear rack adjustable in one direction is present. Arcuate guides are provided at the two sides of the drive gear. The arcuate guides maintain the toothed belt in such engagement with the gear rack that one section receives the load and only a short, defined section of the toothed belt is disengaged from the teeth. Furthermore, the toothed belt is provided as an endless loop.
Abstract:
There is described a balancing element for a flap opening especially at an automobile, with two end points, which are adjustable relative to one another in the principal direction of the element, and comprising two draw yokes (15) which are operatively connected together and which are enclosed by a tension spring (20) snugly embracing them and having its end points fixed near the end points of the draw yokes (15).