Conveyors: power-driven – Conveyor section – Endless conveyor
Patent
1994-01-18
1994-12-13
Valenza, Joseph E.
Conveyors: power-driven
Conveyor section
Endless conveyor
198834, B65G 1706
Patent
active
053722485
ABSTRACT:
A modular plastic conveyor belt formed of rows of plastic belt modules pivotally interlinked by transverse pivot rods and specially adapted for following a curving conveyor path. The modules include a top, product-conveying surface and a bottom, sprocket-driven surface. A central elongate element extends across the width of each module transverse to the direction of belt travel. The elongate element is formed by a thin, corrugated strip forming a series of regularly spaced alternating grooves and ridges. Link ends extend outward from the ridges on each side of the corrugated strip. Each link end has a thick portion at the end of the link end distant from the corrugated strip. Transverse holes in the link ends are aligned to accommodate a pivot rod. When the link ends of consecutive rows of side-by-side modules are intercalated, the pivot rod serves as a hinge pin in a hinged joint between consecutive interlinked rows. To permit the belt to flex sidewise, the holes in the link ends extending from one side of the corrugated strip are slotted longitudinally in the direction of belt travel. The thick end portions of the link ends include a chamfered surface for engagement by the tooth of a rotating sprocket. The outer edges of the belt are formed by edge modules characterized by an outer sidewall having a cylindrical groove terminating in an angled occlusion to confine headless pivot rods in position between adjacent belt rows. Other versions of the belt are constructed with various edge modules, each including provisions for preventing the belt from rising up out of a conveyor tray as the belt rounds a turn. Various edge modules include one or more integral projections extending outward from a sidewall for engaging a conveyor side rail or tabbed projections extending downward from the bottom surface of the module for engaging support surfaces beneath the conveyor carryway.
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Cronvich James T.
The Laitram Corporation
Valenza Joseph E.
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