Quick coupler
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United States of America Patent
Stats
-
Jun 27, 2017
Grant Date -
Aug 13, 2015
app pub date -
Feb 6, 2015
filing date -
Feb 13, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A quick coupler for coupling a tool like for example a scoop, shell grab or demolition tongs to a tool guide such as an excavator arm or the like, including a coupling receptacle for receiving a first locking part and a locking receptacle for receiving a second locking part, wherein to the coupling receptacle a securing element is associated for catching and/or securing the first locking part in the coupling receptacle, and to the locking receptacle a locking element is associated for locking the second locking part in the locking receptacle, wherein the locking element and the securing element are actuable via a common pressure circuit having an unlocking pressure port and a locking pressure port selectively connectable with a pressure source or a return line via a valve. The securing element is actuable by a double-acting, reversible actuator and is movable both into an opening and a closing position.
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