The automatic connection device includes a fixed connection plate, that is attached to or integrated with the tool holder and stationary relative to same, a movable connection plate, that is mounted movably on the tool so as to be able to both pivot and slide relative to same, and a centering device provided on the tool holder and the tool such that, when said tool is mounted and assembled mechanically on the tool holder, the connection plates are mutually centered and the electrical, pneumatic and/or hydraulic couplers of same are mutually connected so as to connect at least one of the electrical, pneumatic and/or hydraulic networks of the tool to that of the tool holder.

An attachment assembly for use with a work machine includes an attachment adapter coupled to the work machine and fixed relative thereto and an attachment frame including a member defining an attachment point configured to engage, into an engaged mode, with the attachment adapter when a front suspension system of the work machine is raised to a raised position, and configured to disengage, into a disengaged mode, from the attachment adapter when the front suspension system is lowered to a lowered position, the attachment adapter configured to travel with the work machine when in the engaged mode and the disengaged mode, and the attachment frame configured to travel with the work machine when in only the engaged mode.

A pin grabber coupler for coupling an attachment with an excavator having a housing at least between the plates; a rear receiving arch and a forward receiving arch formed by the spaced-apart plates for receiving a pin of the attachment; a wedge lock extending between the spaced-apart plates; and a main actuator driving the wedge lock into the rear receiving arch and retracting the wedge lock from the rear receiving arch. A locking system for locking or unlocking the wedge lock has a latch having a latch end, a lever end, and a pivot therebetween; the latch end engaging the wedge lock once the wedge lock is fully extended into the rear receiving arch; a biasing member coupled to the lever end and biasing the latch end towards the wedge lock; and an unlock actuator opposing the biasing member to disengage the latch end from the wedge lock.

An attachment system for a work vehicle implement includes an implement attachment assembly. The implement attachment assembly includes a support structure coupled to a receiver assembly. The support structure includes a first mounting feature configured to engage a first corresponding mounting feature extending downwardly from a bottom surface of a work vehicle, and a second mounting feature configured to engage a second corresponding mounting feature extending downwardly from the bottom surface of the work vehicle. The first and second mounting features of the support structure are spaced apart from one another along a longitudinal axis relative to a direction of travel of the work vehicle, and the first and second mounting features of the support structure are configured to substantially block horizontal and vertical movement of the support structure relative to the work vehicle via engagement with the first and second corresponding mounting features of the work vehicle.

A bracket for mounting an excavation bucket on a coupler of an articulated arm. The bracket comprises a body extending in a plane and having a central portion. A first concavity on a first side of the body substantially has an arc-of-circle shape to conform with a surface of a cylinder and hinge therearound. The bracket comprises a second concavity on a second side of the body opposite the first side with respect to the central portion. A third concavity on the second side of the body substantially has the arc-of-circle shape. The bracket comprises a first abutment edge formed by the central portion of the body; and a second abutment edge aside the first abutment edge and further from the central portion of the body compared to the first abutment edge. This bracket allows reversible mounting of the coupler of the excavation bucket.

The present invention provides a coupling apparatus for coupling an attachment to a dipper arm of a machine. The apparatus includes a coupler body; a first, fixed engaging means mounted on the coupler body for engaging a first coupling pin of the attachment, in use; a latch member associated with and pivotable with respect to the first, fixed engaging means between latched and unlatched positions; and a locking member pivotable about a pivot point between first and second positions, and provided in mechanical communication with the latch member. The latch member includes an aperture located therethrough, and the locking member includes a trunnion member or other such protrusion located thereon, extending into or through the aperture of the latch member and engaging the same such that when the locking member is in the first position, the latch member is in the latched position, and when the locking member is moved to the second position, the trunnion member moves the latch to the unlatched position.

An excavator bucket locking and security device that is engageable with a backfill blade of an excavator. The locking and security device has a connection device for connection to the excavator bucket. The connection device includes an upper pipe for engaging the bucket's upper receptacles. The connection device also has a lower pipe that is positionable next to the bucket's lower receptacles. An insertable pole is insertable through the lower pipe and through the lower bucket receptacles. The locking and security device also includes a pipe connection device for connecting the upper pipe to the lower pipe. A hook is connected to the pipe connection device. The hook is engageable with a backfill blade of an excavator.

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.

The invention relates to an implement coupling device (1) on a working machine (2), which device 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-coupler for coupling a tool, including a coupling mount for receiving a first locking part and a locking mount for receiving a second locking part, wherein a securing element, which can be actuated by a pressure medium, is associated with the coupling mount for capturing and/or securing the first locking part in the coupling mount and a locking element, which can be actuated by a pressure medium, is associated with the locking mount for locking the second locking part in the locking mount. The securing element of the coupling mount can likewise be actuated by the pressure circuit for actuating the locking element of the locking mount, with the securing element being connected to the pressure circuit via a switching valve which is controllable by a sensor arranged at the coupling mount for detecting the locking part.