Rock door latch with opposed roller detents

Details Rock door latch with opposed roller detents Rock door latch with opposed roller detents

1985-06-13

1986-10-14

Hirsch, Paul J.

A01F 1200

Patent

active

046166610

ABSTRACT:
A rock door has its front end pivotally mounted on a combine near the crop inlet to the threshing cage and when closed has a pivoted lip structure at its rear end resting on the front end of the threshing concave. The lip structure is releasably held in its normal operating position by a latching mechanism employing a pair of oppositely acting spring biased roller detents engaging opposite sides of a detent finger carried by the lip structure. When a rock of substantial size is conveyed to the gap between the threshing rotor and the door, the force of the rock against the door causes the latch mechanism to release the door allowing the rock to be discharged.

REFERENCES:
patent: 3971390 (1976-07-01), McDuffie et al.
patent: 4195644 (1980-04-01), Ryczek
patent: 4262679 (1981-04-01), James
patent: 4271850 (1981-06-01), Ryczek
patent: 4335565 (1982-06-01), Knepper et al.
patent: 4484588 (1984-11-01), Huhman et al.

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