US 5,489,029 AGranted

Harvester sieve opening indicator

AssigneeNew Holland North America, Inc.

InventorsMarc R. M. Jonckheere, Dirk G. C. Leupe, Willy C. Hollevoet, Gilbert J. I. Strubbe

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Abstract

An adjustable sieve mechanism for an agricultural harvesting machine comprising louvres positioned behind one another and being movable through a range of positions between a fully closed and a fully opened position. Consecutive louvres define an opening when in an opened position. An adjustment mechanism is provided for changing the opening. Also provided is an opening indicator including a movable part which is unitarily moved with one of the louvres when the opening is adjusted. The indicator permits verification of the sieve opening even when the louvres are not accessible for measurement with gauges, and a direct link between the louvres and the movable part avoids the inaccuracies which are conceivable when the indicator is sensing the movement of further, intermediate components of the adjustment mechanism.

Claims7

Dependent claims

Adjustable sieve means for an agricultural harvesting machine comprising,

a plurality of louvers mounted on said frame behind one another and being pivotally movable through a range of positions between a fully closed and a fully opened position, consecutive louvers defining an opening when in an opened position,
adjustment means for changing said opening, and
opening indicator means including a movable part coupled to and moveable in concert with said adjustment means through a second range of positions that correspond to said range of positions of said louvers, the improvement comprising
means for coupling said movable part to at least one of said louvers for conjoint movement therewith when said opening is adjusted by said adjustment means,
said at least one louvre and said movable part being pivotable about a common axis, and
readable means indicating the position of said movable part within said second range of positions.

3 more elements

Dependencies are inferred from the claim text.