Patent ID: 7462148
Filing Date: 2008-12-09
Classification: B65G

Abstract:
1. A transfer apparatus comprising: a drive disk rotatable at a transfer station about a central axis and defining an eccentric axis offset from the central axis; an inner drive shaft centered on the eccentric axis and rotatably journaled in the drive disk at the eccentric axis; an inner arm fixed to and extending angularly from the inner drive shaft and having an outer end; an outer arm pivoted at the inner-arm outer end and having an outer end; a grab pivoted on the outer-arm outer end; drive means for rotating the drive disk about the central axis and thereby orbiting the inner arm, the outer arm, and the grab about the central axis; inner control means including for changing an inner angle formed between the inner arm and the outer arm; and outer control means for changing an outer angle formed between the inner arm and the outer arm, the inner and outer cam disks axially flanking the drive disk.