LIFTING DEVICE FOR A TOOL
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United States of America Patent
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Issued Date -
Jan 9, 2014
app pub date -
Feb 17, 2012
filing date -
Feb 18, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a lifting device for a tool, in particular for a lower tool of a deep drawing machine or traysealer, having a framework, at least one tool-receiving portion that is supported in the framework in a liftable manner, and at least one displacement transducer that is arranged between the framework and the tool receiving portion. The framework and this tool receiving portion are connected to each other via at least one knee joint rod assembly, said displacement transducer having at least one crank drive that acts on the knee joint rod assembly. The crank drive has two end positions, each of which is formed in the region of a dead center, and the knee joint rod assembly has an extended dead center position, said extended dead center position of the knee joint rod assembly being formed in one of the dead center positions of the crank drive.
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