US 12,291,837 B2
Coupling assembly and method of hydraulically coupling to a tool
Peter Lauterslager, Oss (NL)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Deerfield, IL (US)
Filed on Jun. 8, 2021, as Appl. No. 17/303,786.
Application 17/303,786 is a division of application No. 16/442,916, filed on Jun. 17, 2019, granted, now 11,053,660.
Prior Publication US 2021/0292992 A1, Sep. 23, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. E02F 3/36 (2006.01); E02F 3/96 (2006.01); E02F 3/413 (2006.01)
CPC E02F 3/3627 (2013.01) [E02F 3/3654 (2013.01); E02F 3/3663 (2013.01); E02F 3/963 (2013.01); E02F 3/4133 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A coupling assembly comprising:
a mount attachable to a work machine and configured to receive a tool in a mounted position of the tool;
a retaining body movable in translation relative to the mount along a translation axis between a retaining position for retaining the tool to the mount and a release position for releasing the tool from the mount;
a first actuator and a second actuator independently operable to move the retaining body between the retaining and release positions;
a hydraulic coupling manifold movable in translation relative to the mount along the translation axis between a coupling position that hydraulically couples the tool to the work machine and a decoupling position wherein the tool is hydraulically decoupled from the work machine, wherein the hydraulic coupling manifold uses the first and second actuators as guides for moving along the translation axis; and
a control valve configured to prevent movement of the retaining body from the retaining position to the release position unless the hydraulic coupling manifold is in the decoupling position.