Drive mechanism for glass sheet roller conveyor of furnace

Details Drive mechanism for glass sheet roller conveyor of furnace Drive mechanism for glass sheet roller conveyor of furnace

1990-11-30

1992-02-18

Yuen, Henry C.

Heating

Advancing structure flexing, looping or coiling sheet, web...

432236, 432246, F27B 928

Patent

active

050889206

ABSTRACT:
A drive mechanism (32) for a roller conveyor (28) of a furnace (12) for heating flat glass sheets includes a primary drive loop (34) received by primary drive wheels (36) and also includes a plurality of secondary drive loops (50) each of which is associated with a pair of conveyor rolls (30). Internal teeth (42) of the primary drive loop (34) and external teeth (52) of the secondary drive loops (50) are engaged to provide a driving relationship therebetween, while internal teeth (54) of the secondary drive loops (50) drive gears (56) secured to the conveyor rolls (30). A plurality of idler gears (64) mesh with the external teeth (54) of the secondary drive loops (50) to maintain tensioning that prevents backlash and provides uniform reversal of all conveyor rolls as the driving changes from one direction to the other as well as allowing the conveyor rolls to be positioned with their high sides aligned so as to maintain planarity during the conveyance. The primary drive loops (34) has a metal core (70) and an elastomeric covering (72) that forms its internal teeth (42). Engagement rollers (80) of the drive mechanism maintain engagement between inclined faces (42a,52a) of the internal teeth 42 of the primary drive loop (34) and the external teeth (52) of the secondary drive loops (50).

REFERENCES:
patent: 3810735 (1974-05-01), Moser
patent: 4767321 (1988-08-01), Chilva
patent: 4802845 (1989-02-01), Kajiura

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