A quick coupler system for connecting a work tool to an arm of a work machine includes an adapter bracket with spaced apart side walls each having first and second adapter openings for receiving first and second bracket pins of a work tool bracket. The adapter bracket is disposed between bracket side walls of the work tool bracket when the adapter openings receiving the corresponding bracket pins. A coupler link having first and second coupler openings receives and engages the first and second bracket pins to connect the work tool to the arm, with the coupler link being disposed between the adapter side walls. The adapter bracket may have an adapter hydraulic interface block that is aligned with a coupler hydraulic interface block of the coupler link to form a fluid flow path for hydraulic fluid from a pressurize fluid source of the work machine to the work tool.

A coupler unit for coupling a work tool with a work machine includes a coupling bracket. The coupler unit includes a pin, at least one side plate, a boss extending from the side plate, and a slider movably coupled with the boss. Based on a contact of the work tool with the slider, the slider is configured to move relative to the boss from a first position to a second position. In the first position, the slider is misaligned relative to the boss and the side plate, and the slider prevents receipt of the pin within the boss and the side plate. In the second position, each of the coupling bracket, the slider, the boss, and the side plate are in alignment with each other, and the pin is receivable within each of the coupling bracket, the slider, the boss, and the side plate.

Front loaders typically have interchangeable implements that require an operator to drive toward a desired implement and to attempt to align the implement attachment points with the attachment points on an implement mount that is attached to the loader. This is made more difficult because the operator's view of the various attachment points (catch hook and support pins, rods, links) of the implement and the implement mount is often blocked by the front loader arms (booms) or other front loader components, thus, aligning the implement and the implement can be very difficult. The present disclosure provides for a system and method to simplify the above-described implement alignment processes.

A coupler for a wheel loader is disclosed. The coupler is used for coupling an attachment to a lifting arm of the wheel loader. A bracket is installed between the lifting arm and the attachment. The bracket's back face is pivotally connected to a lifting arm and the bracket's front face is detachably connected to the attachment. The attachment has a pair of protrusions rearwardly extending from the lower back of the attachment and have locking holes pierced through their width. The bracket has a pair of receiving slots formed at the lower front of the bracket and engaged with the protrusions. The coupler has a shaft, and a pair of locking pins combined with the shaft by threads. The threads formed at one end of the shaft are right handed and the threads formed at the other end of the shaft are left handed. When users turn the shaft in one direction, the locking pins are extended and engaged with the locking holes (a coupling position). When users turn the shaft in the other direction, the locking pins are shortened and released from the locking holes (a release position).

A skid steer implement has an implement body with a front side adapted to engage material to be moved, and a back side opposite the front side, and a connection plate disposed on the back side of the implement body. The connection plate has an upper bracket extending horizontally across a central width of the connection plate and defining a downwardly-facing recess running along the central width, and a lower lock plate disposed below, and spaced from, the upper bracket and defining therein multiple lock ports for receiving locking pins to releasably secure the implement to a vehicle for use. The multiple lock ports comprise multiple pairs of lock ports, the lock ports of each pair spaced apart laterally from each other a set distance across the implement, the pairs of lock ports defining respective implement mount positions enabling the implement to be locked to the vehicle in each of multiple, selectable, lateral positions.

A locking system for securing an attachment to a working arm of a working machine, the locking system including a latch member movable between an engaged position, where the attachment is secured to said working arm, and a disengaged position, where the attachment can be removed from said working arm; and a hydraulic circuit configured to lock the latch member in the engaged position. The hydraulic circuit includes a lock configured to open when the circuit reaches a predetermined pressure such that the latch member is released from the engaged position, a relief valve configured to activate below the predetermined pressure, such that the lock remains closed in normal operation, and an isolation arrangement configured to selectively isolate the relief valve from the circuit upon an operator input, to enable the circuit to reach the predetermined pressure such that the latch member is released.

A front loader includes a working tool and an attachment body to which the working tool is attached, including a lock pin configured to attach and fix the working tool, a lock lever configured to move the lock pin between a releasing position and an attaching position, and a latching portion having a retaining mechanism configured to retain the lock lever at the releasing position and another mechanism configured to move the lock lever to the attaching position.

A universal backhoe bucket coupler for a work machine includes a first pair of apertures positioned to be spanned by the mounting flanges of a first style bucket having mounting holes for receiving at least one front mounting pin, a second pair of apertures positioned to be spanned by the mounting flanges of a second style bucket having mounting holes for receiving at least one front mounting pin. A pair of like pivotal spacers is disposed laterally intermediate corresponding outer and inner side portions of the coupler and are pivotable between stowed positions and deployed positions aligned with the first pair of apertures for minimizing lateral bucket motion.

A work vehicle including a work implement having a left mounting pin and a right mounting pin laterally spaced from the left mounting pin and a boom assembly configured to manipulate the work implement. The work vehicle includes first and second holders coupling the work implement to the boom assembly, and each of the holders having a left holder opening and a right holder opening laterally spaced from the respective left holder opening. In a first configuration, the left mounting pin connects to the left holder opening of the first holder and the right mounting pin connects to the right holder opening of the second holder. The first and second holders are identical and interchangeable such that in a second configuration, the left mounting pin connects to the left holder opening of the second holder and the right mounting pin connects to the right holder opening of the first holder.

A carrier for coupling loader arms to an implement of a work vehicle includes a pair of brackets coupled by a cross-rod. Each bracket includes an inner wall spaced apart from an outer part. At least one of the inner walls defines a latch slot. The carrier includes a latch mechanism movable between latched and unlatched positions. The latch mechanism includes a latch plate having a retaining flange with an engagement surface, a pair of lock pins and a pair of latch receptacles associated with the brackets. When in the latched position, the latch mechanism has the lock pins received in the latch receptacles and the engagement surface disengaged from the one of the inner walls. When in the unlatched position, the latch mechanism has the retaining flange passed through the latch slot and the engagement surface engaged with the one of the inner walls.