Abstract: An excavator coupler including a front jaw for receiving a first attachment pin of an accessory and a rear pin receiving area for receiving a second attachment pin of the accessory, a first closure mechanism for the rear pin receiving area, the first closure mechanism including an actuator and a movable second pin engaging surface for selectively securing the second attachment pin in the rear pin receiving area and for pulling the first attachment pin into the front jaw of the coupler, a second closure member for the front jaw for selectively retaining the front attachment pin in the front jaw, and a front latch control component for selectively controlling the second closure member between an open state and a closed state wherein the actuator includes a release member for selectively engaging a release arm on the front latch control component to activate or deactivate the front latch control component.

Abstract: A coupler including a housing with a top part for attachment to an excavator arm of an excavator, and a bottom part for attachment to an accessory for the excavator, such as an excavator bucket, the bottom part including a front jaw open to a front of the coupler for receiving a first attachment pin of an accessory and a rear pin receiving area for receiving a second attachment pin of the accessory, a latching member for the rear pin receiving area, the latching member including a body, a further jaw extending below the body, a release member extending forward of the body, an attachment point for an end of an actuator and a hole through the body into which a sprung member is located, wherein the sprung member extends through and to under the body and into or partially across a mouth of the further jaw.

Abstract: A coupler control system (10) for coupler on an excavator arm (14) of an excavator (12), the coupler comprising a hydraulic actuator (60), the excavator comprising a solenoid valve (20) for controlling operation of the coupler's hydraulic actuator (60), the excavator arm (14) comprising a boom arm (36) and a stick (40), both operated by separate hydraulic actuators, and a bucket actuator (44) for rotating an accessory relative to the stick (40), the coupler control system (10) comprising a controller linked to the solenoid valve (20) for controlling operation of the coupler's hydraulic actuator (60), a status indicator (22), a coupler control switch (24) for locating in the cab of the excavator and a pressure sensor (28) for connecting to the hydraulic system for at least one of the hydraulic actuators for the boom arm, the stick or the bucket actuator, wherein the coupler control switch and the status indicator are connected to the controller, the pressure sensor is arranged to sense when the hydraulic fluid