B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
B65G 17/08 (2006.01) B65G 17/06 (2006.01)
Patent
CA 2140419
A modular plastic conveyor belt formed of rows of plastic belt modules pivotally linked 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 an end 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 linked rows. To permit the belt to flex sidewise, the holes in the link ends on one side of the corrugated strip are slotted longitudinally in the direction of belt travel. The 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.
Cassan Maclean
Laitram L.l.c.
The Laitram Corporation
LandOfFree
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