Conveyors: power-driven – Conveyor section – Reciprocating conveying surface
Patent
1987-09-21
1988-11-01
Spar, Robert J.
Conveyors: power-driven
Conveyor section
Reciprocating conveying surface
414750, B65G 2500
Patent
active
047812850
ABSTRACT:
A drive for an article transfer device in which a carrier is driven into contact with a stationary part to lift the part upwardly from a stationary support employs a drive motor which provides a constant speed input during a lifting cycle. The constant speed input is transmitted to the carrier by a motion transmission mechanism which drives the carrier in an elevating stroke in which the velocity of the carrier is momentarily reduced to zero at the instant the carrier contacts the part to avoid an undesirable impact between the carrier and part. The mechanism may be set up to accommodate contacting the part at a predetermined point other than the midpoint of the carrier stroke and includes a mechanism which operates at a maximum mechanical advantage at the time of part contact.
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Schlatter Howard
Wisne Lawrence A.
Dayoan D. Glenn
Progressive Tool & Industries Company
Spar Robert J.
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