| 摘要 |
<p>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 the 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.</p> |
