Abstract: A quick coupler for attaching a tool having first and second generally parallel pins to an excavator or the like has a coupler body and a lock plate assembly. The coupler body includes a pair of generally parallel sidewall plates spaced from and generally parallel to each other, and a set of cross members extending generally between the sidewall plates. The set of cross members includes at least first and second cross members spaced from each other and defining a slide port. The pair of sidewall plates defines a first slot facing in a first direction for engagement with the tool first pin and a second slot facing in a second direction transverse to the first direction for engagement with the tool second pin. The lock plate assembly, for releasable securing engagement of the second slot with the second pin, includes a lock plate and a lock pin.

Abstract: A latch member for a tool coupler engages with a latch receptacle on a tool to lock the tool to the tool coupler. The latch member includes a first fluid channel extending through the latch member to provide a first fluid connection to the tool through the latch receptacle.

Abstract: A non-spill, multi-line fluid connector includes a first part and a second part adapted to be removably connected to the first part. Each of the first part and the second part includes a plurality of fluid channels that each connect to a corresponding fluid channel of the other part without fluid spillage. The fluid channels in each part can be arranged concentrically, which enables the parts to be rotated relative to each other while maintaining the fluid connections. One part can be incorporated into a latch pin of a tool coupler, and the other part can be incorporated into a latch bracket attached to a hydraulically operated tool, wherein the latch bracket receives the latch pin to lock the tool to the tool coupler and to establish one or more hydraulic connections to the hydraulic tool.

Abstract: The invention provides a coupling assembly for coupling a tool to a dipperstick, or arm, on an apparatus which has a hydraulic system for moving the tool. The coupling assembly includes a coupler body having a frame that defines a central cavity, and also having link structure for pivotally coupling to the dipperstick. An actuator assembly positioned within the central cavity includes a latch pin that can slide between an engaged position and a retracted position. In the engaged position, an end of the latch pin projects out from a rear end of the frame for engaging a receptacle defined by the tool. In the retracted position, the end of the latch pin does not project out from the frame. A bias structure normally urges the latch pin toward the engaged position with a bias force. A hydraulic latch cylinder has a fixed part and a movable part rigidly coupled to the latch pin such that, when the movable part is extended from the fixed part, the latch pin is urged to the retracted position.

Abstract: The invention provides a coupling assembly and method for coupling a tool to a dipperstick, or arm, on an apparatus which has a hydraulic system for moving the tool. The coupling assembly includes a coupler body having link structure for pivotally coupling to the dipperstick. A latch member is movable between an engaged position for engaging the tool and a disengaged position for disengaging from the tool. A spring is arranged to provide a spring force to urge the latch member to the engaged position. A hydraulic motor has a part that is stationary relative to the coupler body and a movable part that can be extended relative to the stationary part when hydraulic pressure is applied to one end of the hydraulic motor. The movable part is coupled to the latch member such that extension of the movable part urges the latch member to the retracted position in opposition to the spring force.