Patent ID: 7246457

Claim:
A construction machine with a quick coupler for the coupling of a tool to a boom having a quick coupling part on the boom side and a quick coupling part on the tool side having a power circuit coupling, in particular a hydraulic coupling, having a plate-like supports of the power coupling parts for the automatic coupling of a power connection on the tool side to a power connection on the boom side, with there being integrated in the plate-like supports, on the one hand, male and female connector pieces as energy connections and, spaced apart therefrom, at least one guide bolt or at least one guide bore which ensure a precisely fitting lying on one another of the plate-like supports in the coupled state such that the plate-like supports are arranged largely parallel to one another while forming a small gap, wherein a write/read head is arranged in or at one of the two plate-like supports and a data carrier is arranged in the oppositely disposed plate-like support such that both can exchange data with one another in the coupled state.