Shear clutch assembly with reverse drive mechanism for clearing

Details Shear clutch assembly with reverse drive mechanism for clearing Shear clutch assembly with reverse drive mechanism for clearing

1979-01-18

1980-09-02

Artis, Henry K.

64 29, F16D 356, F16D 700

Patent

active

042200199

ABSTRACT:
A shear clutch assembly for a rotatably driven power transmitting shaft and including a shear bolt which is sheared and causes a disconnect in the driving parts for the shaft. The assembly includes a flange rigidly fixed to the shaft and a rotatably driven member, for example, such as a sprocket rotatably mounted on the shaft and connected to the flange by the shear bolt. A reversing drive mechanism is carried by the driver or the driven member and when the power is transmitted in the normal or forward direction, the reversible drive connection is ineffective. However, when the shear bolt means has been severed and dislodged, power can be reversed and this causes the reverse drive connection to become effective for driving in the reverse direction. In this manner, the power shaft can be easily reversed in its direction to clear the overloaded conditions which caused the shear bolt to fail and to effect the reversal of the power shaft, it is only necessary to reverse the direction of the power to the power driven sprocket.
A machine, such as a harvester or other agricultural implement for example, is provided and which has a pair of cooperating power driven feed rolls for feeding material therethrough and the shear clutch assembly is incorporated in a power driven shaft for said feed rolls.

REFERENCES:
patent: 2659469 (1953-11-01), Unk
patent: 2847836 (1958-08-01), Morris
patent: 2855768 (1958-10-01), Plano
patent: 2962880 (1960-12-01), May
patent: 3000577 (1961-09-01), Ferguson
patent: 3487902 (1970-01-01), Persson

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