Transfer apparatus
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United States of America Patent
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-
May 24, 2011
Grant Date -
Oct 2, 2008
app pub date -
Mar 25, 2008
filing date -
Mar 30, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A transfer apparatus includes a fixed base, a swivel, a lift mechanism for raising and lowering the swivel relative to the fixed base, a swivel mechanism for turning the swivel about a vertical swivel axis, a linear movement mechanism supported by the swivel, and a hand supported by the linear movement mechanism for transportation of a work along a linear horizontal travel stroke. The lift mechanism includes N (N is an integer equal to or greater than 2) lift members arranged for telescopic expansion and retraction relative to the fixed base. The lift mechanism also includes N lift drive mechanisms each for raising and lowering one of the lift members relative to an immediate lower-stage lift member. The swivel is supported by an uppermost one of the lift members. (FIG. 5)
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