Drive system for a microscope stage or the like
AssigneeGebr. Marzhauser Wetzlar oHG
InventorHeinz Marzhauser
Life of this patent
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Abstract
A drive system for slides and x-y stages in microscopes and similar instruments having the possibilities of both fine control and rapid displacement of the slides over larger distances. The drive system comprises a friction wheel and a friction track provided between the slide and the stationary slide guide. A friction wheel together with an actuation knob are solidly fixed on a common shaft and this common shaft is displaceable against a spring force so that the friction wheel is out of contact with the friction track.
Claims9
A drive system for an x-y stage of a microscope or similar instrument having a first displaceable slide and a second slide displaceable at an angle to said first slide, first stationary slide guide means for said first displaceable slide and a second stationary slide guide means for said second slide comprising:
- (a) a friction wheel connection having first and second friction wheels (7,11) and first and second friction tracks (6,10) arranged respectively between said first slide (3) and said first stationary slide guide means (1) on the one hand and between said first slide (3) and said second slide (5);
- (b) said first friction wheel (11) having a first actuation knob (13) and a first common solid shaft (12);
- (c) said second friction wheel (7) having a second actuation knob and a second common hollow shaft (8) coaxial to said first shaft;
- (d) first and second spring force means (15,16) biasing each of said first and second shafts and respective friction wheels into contact with said friction tracks;
- and
- (e) means for displacing each of said shafts (8,12) against said spring force means (15,16) and in the axial direction so that said friction wheels (7,11) connected to them no longer make contact with their associated friction tracks (6,10).
Dependencies are inferred from the claim text.