Patent ID: 9388549
Filing Date: 2016-07-12
CPC Classification: E02F

Claim Text:
1. A quick-coupler for coupling a tool to an excavator arm, comprising: a coupling mount for receiving a first locking part of the tool, and a locking mount for receiving a second locking part of the tool, wherein a securing element is associated with the coupling mount for capturing and/or securing the first locking part in the coupling mount, wherein a locking element is associated with the locking mount for locking the second locking part in the locking mount, wherein the locking element is configured to be actuated by a pressure circuit which has an unlocking pressure connection and a locking pressure connection, the locking pressure connection and the unlocking pressure connection being selectively connectable to a pressure source or to a return line, via a valve device, wherein the securing element of the coupling mount is configured to be actuated by the pressure circuit, and wherein the quick-coupler further comprises a time control device which reduces the actuation pressure built up at the securing element within a specific time duration after reaching a specific actuation pressure value at the securing element.