Conveyors: power-driven – Conveyor section – Live roll
Patent
1991-12-04
1993-06-08
Olszewski, Robert P.
Conveyors: power-driven
Conveyor section
Live roll
198790, B65G 1306
Patent
active
052171094
ABSTRACT:
Disclosed is a method and apparatus for braking a selected group of rollers in a live roller conveyor in which groups of rollers are driven by belts looped about a torque tube carried for rotation about a drive shaft and maintained in frictional contact therewith by the tension in the means belts. The brake means comprises a member carried on a pivotally mounted cam and movable between an "on" position in which the member is in contact with and applies pressure to the torque tube and an "off" position out of contact with the torque tube. In the "on" position the member applies pressure to the torque along a line radially of the drive shaft that cause the tube to move into a position in which it is coaxially aligned with the drive shaft whereby the frictional drive between the torque tube and the drive shaft is disengaged thereby bringing the rollers associated with the torque tube to a halt. The cam is caused to move the member between the "on" and "off" positions by a pneumatic motor actuated by a sensor downstream of the group of rollers indicating the accumulation of packages at the sensor.
REFERENCES:
patent: 3650375 (1972-03-01), Fleischauer et al.
patent: 3696912 (1972-10-01), Fleischauer et al.
patent: 4355715 (1982-10-01), Chorlton
patent: 4588073 (1986-05-01), Abell
patent: 4819788 (1989-04-01), Van Der Schie
Gastineau Cheryl
Link 51 Limited
Olszewski Robert P.
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