Conveyors: power-driven – Conveyor section – Endless conveyor
Patent
1991-05-01
1992-04-21
Valenza, Joseph E.
Conveyors: power-driven
Conveyor section
Endless conveyor
198840, 198834, B65G 1706
Patent
active
051059371
ABSTRACT:
A closed-hinge conveyor belt constructed of interconnected modules in which the tracking of drive sprockets is achieved by belt link end structure forming tracking recesses that mate with the tracking teeth of drive sprockets. In conventional open-hinge belts in which tracking is so achieved, tracking recesses are formed in link end structure that forms pivot rod bearing holes only partly surrounded by the link end structure, thereby exposing the pivot rod directly to contamination in such an open-hinge construction. According to this invention, shallow tracking recesses are formed in link end structure that forms pivot rod bearing holes to ensure that no part of the pivot rod across the width of the belt is left openly exposed, but rather is surrounded by link end structure. Thus, the access of grit and grime to the pivot rod in such a closed-hinge belt is restricted, thereby affording longer belt operating life, particularly in abrasive environments.
REFERENCES:
patent: 4051949 (1977-10-01), Lapeyre
patent: 4171045 (1979-10-01), Lapeyre
patent: 4213527 (1980-07-01), Lapeyre et al.
patent: 4729469 (1988-03-01), Lapeyre
patent: 4925016 (1990-05-01), Lapeyre
patent: 4993543 (1991-02-01), Lapeyre
Cronvich James T.
The Laitram Corporation
Valenza Joseph E.
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