Conveyors: power-driven – Conveyor section – Endless conveyor
Patent
1978-03-10
1980-04-08
Rimrodt, Louis
Conveyors: power-driven
Conveyor section
Endless conveyor
29116R, B65G 1508
Patent
active
041968050
ABSTRACT:
A roller made of a synthetic resin, used for supporting a conveyor belt, possesses an anti-electrostatic-charge capability. Utilizing insert-forming injection molding, a conveyor carrier roller body is integrally formed concentrically about a thin walled metallic housing containing a rotary bearing assembly therein at the innermost position for concentrically forming a conveyor carrier roller body integrally with the metallic housing. The inner race of the bearing is force-fitted onto the roller shaft and the outer race of the bearing is force-fitted inside the metallic housing. A roller of such a construction will readily discharge the static electricity charged on the surface of the roller by conducting it to ground through a snap ring (fitted in a circular groove formed inside of the boss portion of the roller), the housing, the bearing, and the shaft. The snap ring positioned adjacent the electricity charging place functions like a lightening conductor through the point-discharging.
REFERENCES:
patent: 2393191 (1946-01-01), Robertson
patent: 3075632 (1963-01-01), Watt
patent: 3219175 (1965-11-01), Watt
patent: 3688370 (1972-09-01), Cahill et al.
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