B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
201/87
B65G 13/07 (2006.01) B65G 47/26 (2006.01)
Patent
CA 1201677
"ZERO PRESSURE ACCUMULATION CONVEYOR & BRAKE ASSEMBLY Donn R. Van Der Schie ABSTRACT OF THE DISCLOSURE A live roller zero pressure accumulation conveyor and brake assembly are described. The brake assembly includes a rotatable drive shaft surrounded by a tubular torque tube. The drive shaft extends into the torgue tube and has a diameter such that the cylindrical surface of the drive shaft is capable of frictionally engaging the interior of the torque tube to rotate the torque tube when the drive shaft is rotated, but to slip relative to the torque tube when rotation of the torque tube is restrained. Clamping means surrounds the torque tube and is movable relative to the exterior surface of the torque tube between a first position in which its clamping surfaces are moved out of contact with the tongue tube and the rotating drive shaft rotates the torque tube, and a second position in which the clamping surfaces move into contact with the exterior of the torque tube to restrain the torque tube from rotating with the drive shaft. The drive shaft is preferably formed of steel and the torque tube of nylon. A plurality of roller sections having live rotatable rollers are drive by endless belts looped about the rollers and pulleys on the torque tube and by independently rotating torque tubes in each of the sections. Each of the sections includes one of the brake assemblies and a trigger assembly for controlling movement of the rollers in a section. The conveyor may be operated to handle articles in either a slug or singulation mode.
410233
Ermanco Incorporated
Osler Hoskin & Harcourt Llp
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