Conveyors: power-driven – Conveyor section – Endless conveyor
Patent
1975-12-03
1977-08-23
Blunk, Evon C.
Conveyors: power-driven
Conveyor section
Endless conveyor
B65G 1508
Patent
active
040434478
ABSTRACT:
A plurality of troughing rolls, that are suspended in a chain-like manner between opposite side frame members of a conveyor, support a conveyor belt so that the transverse cross-section of the belt defines a trough. The troughing rolls that are located adjacent each side of the conveyor belt are axially inclined in opposite directions. At least one arm is pivotally mounted on the frame and attached to the adjacent end of an inclined troughing roll. A locking pin is provided for retaining the arm in a first position where the troughing rolls support the conveyor belt. The locking pin can be readily moved to release the arm for pivoting to a second position where the troughing rolls are clear of the belt. The arm is mounted to pivot in a plane that is generally parallel to the adjacent inclined side edge of the belt. This plane is substantially the same plane in which extends the line of force that is applied to the arm by the troughing rolls in a belt supporting position. The pivotal axis of the arm is offset, perpendicularly, from the line of force, that is applied to the arm by the troughing rolls, when the troughing rolls are in a belt supporting position. The locking pin is positioned on this line of force.
REFERENCES:
patent: 3038588 (1962-06-01), Arndt et al.
Donnelly Charles E.
Sauve Richard G.
Blunk Evon C.
Edwards J. W.
FMC Corporation
Tripp C. E.
Verehoeven J. F.
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