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.

A method of coupling a tool to a work machine including inserting a front lug of a coupling assembly into a front recess on the tool, inserting a rear lug of the coupling assembly into a rear recess on the tool, moving a retaining member of the coupler assembly to a retaining position relative to the tool to releasably mount the tool to the work machine, while simultaneously preventing movement of a hydraulic coupling manifold on the coupling assembly from moving; and moving the hydraulic coupling manifold to a coupling position with a hydraulic power transmission coupling on the tool to hydraulically couple the tool to the work machine in response to the retaining member reaching the retaining position.

A coupler for coupling an attachment to an excavator. The coupler has first and second spaced-apart coupling formations for coupling with respective corresponding coupling formation of the attachment. The coupler also has a power actuated locking member for retaining the respective attachment coupling formation in engagement with the first coupling formation. A detection system is capable of detecting if the respective attachment coupling formation is in a desired position with respect to the first coupling formation, wherein the detecting means comprises at least one non-contact sensor, preferably an ultrasonic sensor.

A quick hitch for mounting an implement on a machine. The quick hitch has at least one lug for connection to a machine and a securing mechanism for securing the quick hitch to an implement. The quick hitch also has at least one removable plate for engagement with a surface of an implement.

An arrangement for a construction machine includes a machine frame; and an articulated boom. The articulated boom is arranged on the machine frame. The articulated boom includes a proximal arm that is mounted in an articulated manner to the machine frame and a distal arm that is connected in an articulated manner to the proximal arm. The arrangement is configured to be operated in an operational mode, in which the proximal arm and the machine frame are interlocked.

A method of coupling a tool to a work machine including inserting a front lug of a coupling assembly into a front recess on the tool, inserting a rear lug of the coupling assembly into a rear recess on the tool, moving a retaining member of the coupler assembly to a retaining position relative to the tool to releasably mount the tool to the work machine, while simultaneously preventing movement of a hydraulic coupling manifold on the coupling assembly from moving; and moving the hydraulic coupling manifold to a coupling position with a hydraulic power transmission coupling on the tool to hydraulically couple the tool to the work machine in response to the retaining member reaching the retaining position.

A system to couple an implement to a work vehicle includes a first lock assembly coupled to an arm of the work vehicle. The first lock assembly includes a latch. The first lock assembly also includes a first hook and a second hook positioned on opposite lateral sides of the latch. The first lock assembly further includes a first actuator configured to drive rotation of the latch to trap a laterally-extending bar of the implement between a curved inner surface of the latch and respective curved bar-contacting surfaces of the first and second hooks to form a first connection that couples the implement to the work vehicle.

A tool holder includes a locking cylinder provided with two first gripping pins extending laterally from each side of the fixed part thereof, and two second gripping pins extending laterally from each side of the moving part thereof. The tool includes at least two reception assemblies each having a first receiving portion and a second receiving portion the openings of which are each facing and provided to receive one of the first gripping pins and one of the second gripping pins for retaining the tool on the tool holder. The tool is locked on the tool holder by means of the locking cylinder by moving each gripping pin into abutment at the bottom of the associated receiving portion thereof.

An implement coupling device (1) on a working machine (2) comprises a coupling means (11) provided with a first shaft (21); an engagement means (12) provided with a second shaft (22) arranged parallel to the first shaft (21); at least one linkage (13, 14) comprising a first portion (23, 24) connected to the first shaft (21) and second portion (25, 26) connected to the second shaft (22), which first and second portions are connected by a pivot joint (27); and a wedge (28) means arranged to be removably mounted between the first and second portions (23, 24; 25, 26), wherein the coupling means (11) and the engagement means (12) are displaceable relative to each other in a direction at right angles to the first and second shafts (21, 22) to attach or release the implement. At least one portion (23, 24; 25, 26) making up a linkage (13, 14) is detachably fixed to its respective shaft (21, 22) by a locking means (31, 32, 33, 34) in a longitudinal recess (41, 42, 43, 44) at right angles to the shaft (21, 22) and engaging with a tangential recess (51, 51, 51) in the outer surface of the shaft (21, 22).

A quick-hitch for coupling a tool to an excavator arm or a similar tool manipulator includes two hitch halves that can be latched together, coupled to one another at a first pair of latching parts, and pivoted together, about the coupled first pair of latching parts, into a coupling position in which a second pair of latching parts of the hitch halves can be latched. Energy coupling parts are provided on and a coupling carrier is attached to each of the two hitch halves.