Abstract: A loader coupler includes left and right inner rib mounts that mate with left and right ribs of a first type of attachment coupling structure. The coupler also includes left and right outer rib mounts that mate with left and right ribs of a second type of attachment coupling structure. Left and right plunger assemblies each move between a locked and unlocked position and each includes both a first lock plunger and a second lock plunger. The left and right first lock plungers extend into left and right inner locking regions when the left and right plunger assemblies are located in the locked position. The left and right second lock plungers extend into left and right outer locking regions when the left and right plunger assemblies are located in the locked position.

Abstract: A coupler includes a first hook assembly comprising a first hook adapted to receive a first associated attachment pin and a second hook assembly comprising a second hook adapted to receive a second associated attachment pin. The second hook assembly selectively pivots under force of an actuator relative to the first hook assembly by an actuator. The actuator comprises a screw jack that includes a locking sleeve to prevent unintended rotation of the screw member. The actuator can be a hydraulic cylinder and the coupler can include a locking cam that moves between a retracted position and an extended position, with a supplemental lock that selectively prevents movement of the locking cam from the extended position to the retracted position. In such case, the actuator is operatively coupled to the second hook assembly and the locking cam.

Abstract: A coupler includes a first hook assembly comprising a first hook adapted to receive a first associated attachment pin and a second hook assembly comprising a second hook adapted to receive a second associated attachment pin. The second hook assembly selectively pivots under force of an actuator relative to the first hook assembly by an actuator. The actuator comprises a screw jack that includes a locking sleeve to prevent unintended rotation of the screw member. The actuator can be a hydraulic cylinder and the coupler can include a locking cam that moves between a retracted position and an extended position, with a supplemental lock that selectively prevents movement of the locking cam from the extended position to the retracted position. In such case, the actuator is operatively coupled to the second hook assembly and the locking cam.

Abstract: A loader coupler includes a body with a front region, a rear region, an upper region, a lower region, and left and right lateral sides, a tilt actuator pin-on location, and left and right arm pin-on locations. Left and right laterally spaced-apart inner rib mounts are provided on the body and are adapted to mate respectively with left and right ribs of a first type of attachment coupling structure. Left and right inner locking regions are defined by the body and are vertically aligned with the left and right inner rib mounts, respectively. Left and right laterally spaced-apart outer rib mounts are provided on the body and are adapted to mate respectively with left and right ribs of a second type of attachment coupling structure. Left and right outer locking regions are defined by the body and are vertically aligned with the left and right outer rib mounts, respectively. A lock system includes left and right plunger assemblies that each move between a locked and unlocked position.

Abstract: An attachment control system includes an electrical control system and hydraulic control system. The electrical control system interfaces with the hydraulic control system to ensure that attachment decoupling in response to operator electrical control can occur only when at least one hydraulic threshold condition is satisfied as indicated by a hydraulic pressure sensor. Attachment decoupling is prevented unless the pressure sensor outputs an electrical signal that indicates that the attachment is safely positioned (e.g., full-extend or full-curl). In one example, this is indicated with the attachment positioning cylinder is pressurized above a select threshold as indicated by a pressure sensor.

Abstract: A coupler includes a first hook assembly comprising a first hook adapted to receive a first associated attachment pin and a second hook assembly comprising a second hook adapted to receive a second associated attachment pin. The second hook assembly selectively pivots under force of an actuator relative to the first hook assembly by an actuator. The actuator comprises a screw jack that includes a locking sleeve to prevent unintended rotation of the screw member. Alternatively, the coupler includes a locking cam that moves between a retracted position and an extended position and a supplemental lock that selectively prevents movement of the locking cam from the extended position to the retracted position, and the actuator is operatively coupled to the second hook assembly and the locking cam.

Abstract: An attachment control system includes an electrical control system and hydraulic control system. The electrical control system interfaces with the hydraulic control system to ensure that attachment decoupling in response to operator electrical control can occur only when at least two different hydraulic threshold conditions are satisfied. In one example, decoupling is prevented unless the attachment is safely positioned (e.g., full curl) in response to operator manipulation of a joystick or other attachment positioning device. This can be detected, for example, when the hydraulic system has an overall operating pressure at or above a first threshold and a joystick pilot pressure at or above a second threshold.

Abstract: An arm assembly for an excavator includes an arm comprising a first hook including a first open mouth. The arm further includes a first pin capturing system that selectively obstructs the first open mouth. A link is movable relative to the arm and comprises a second hook including a second open mouth. The second open mouth is oriented toward the arm, and the link further comprises a second pin capturing system that selectively obstructs the second open mouth. The first and second pin assemblies of an attachment are selectively captured in the first and second hooks. The pin assemblies include a sleeve rotatably positioned on an attachment pin that extends between ribs of the attachment. The sleeve includes a bore that closely receives the attachment pin and the length of the sleeve is selected so that the sleeve fits closely between the attachment ribs, thereby allowing the arm assembly to pick-up various attachments with different pin diameters, ribs spacings and pin-to-pin distances.

Abstract: A coupler includes a body having first and second recesses that are adapted for respectively receiving first and second associated pins of an associated bucket or other implement. A wedge lock member is movably secured to the body and is movable between a retracted position one or more extended positions. The wedge lock member at least partially obstructs the second recess when it is moved to an extended position so as to capture a second associated pin in the second recess. An actuator is operably coupled to the wedge lock member and is operable to move the wedge lock member between its retracted and extended positions. A supplemental lock arm member is movably secured to the coupler body and is movable between an unlocked position and one or more locked positions. When the supplemental lock arm member is in its locked position, it engages and prevents movement of the lock member from the one or more extended positions to the retracted position.

Abstract: A coupler includes first and second spaced-apart ribs each defining first and second bores. The first bore of the first rib is aligned with the first bore of the second rib on a first pin-on axis, and the second bore of the first rib aligned with the second bore of the second rib on a second pin-on axis. A first hook assembly includes a first hook adapted to receive a first associated attachment pin. The first hook assembly is fixed relative to the first and second ribs. A second hook assembly includes a second hook adapted to receive a second associated attachment pin. The second hook assembly is selectively pivotable relative to the first and second ribs toward and away from the first hook assembly. An actuator is operatively connected to the second hook assembly to pivot the second hook assembly selectively relative to the first and second ribs.

Abstract: An attachment control system includes an electrical control system and hydraulic control system. The electrical control system interfaces with the hydraulic control system to ensure that attachment decoupling in response to operator electrical control can occur only when at least two different hydraulic threshold conditions are satisfied. In one example, decoupling is prevented unless the attachment is safely positioned (e.g., full curl) in response to operator manipulation of a joystick or other attachment positioning device. This can be detected, for example, when the hydraulic system has an overall operating pressure at or above a first threshold and a joystick pilot pressure at or above a second threshold.

Abstract: A coupler includes a body having first and second recesses that are adapted for respectively receiving first and second associated pins of an associated bucket or other implement. A wedge lock member is movably secured to the body and is movable between a retracted position one or more extended positions. The wedge lock member at least partially obstructs the second recess when it is moved to an extended position so as to capture a second associated pin in the second recess. An actuator is operably coupled to the wedge lock member and is operable to move the wedge lock member between its retracted and extended positions. A supplemental lock arm member is movably secured to the coupler body and is movable between an unlocked position and one or more locked positions. When the supplemental lock arm member is in its locked position, it engages and prevents movement of the lock member from the one or more extended positions to the retracted position.

Abstract: A coupler includes a body having first and second recesses that are adapted for respectively receiving first and second associated pins of an associated bucket or other implement. A wedge lock member is movably secured to the body and is movable between a retracted position one or more extended positions. The wedge lock member at least partially obstructs the second recess when it is moved to an extended position so as to capture a second associated pin in the second recess. An actuator is operably coupled to the wedge lock member and is operable to move the wedge lock member between its retracted and extended positions. A supplemental lock arm member is movably secured to the coupler body and is movable between an unlocked position and one or more locked positions. When the supplemental lock arm member is in its locked position, it engages and prevents movement of the lock member from the one or more extended positions to the retracted position.

Abstract: A quick-coupler for operably connecting a bucket or other implement to the arm or dipper-stick of an excavator, backhoe and/or other machine includes a first and second laterally spaced-apart rib assemblies. A first upper bearing plate is connected to the first rib assembly and a second upper bearing plate connected to the second rib assembly. At least one of the first and second upper bearing plates and the lower bearing plate includes a tab projecting outwardly therefrom that is inserted into a corresponding tab-opening defined in one of the first and second rib assemblies. A lock member is slidably positioned in the slot, and an actuator is located in the space between the first and second rib assemblies. The actuator is operably coupled to the lock member for moving the lock member between first and second operative positions. A method of constructing a coupler is disclosed.

Abstract: An arm assembly for an excavator includes an arm comprising a first hook including a first open mouth. The arm further includes a first pin capturing system that selectively obstructs the first open mouth. A link is movable relative to said arm and comprises a second hook including a second open mouth. The second open mouth is oriented toward the arm, and the link further comprises a second pin capturing system that selectively obstructs the second open mouth. The first and second pin assemblies of an attachment are selectively captured in the first and second hooks. The pin assemblies include a sleeve rotatably positioned on an attachment pin that extends between ribs of the attachment. The sleeve includes a bore that closely receives the attachment pin and the length of the sleeve is selected so that the sleeve fits closely between the attachment ribs, thereby allowing the arm assembly to pick-up various attachments with different pin diameters, ribs spacings and pin-to-pin distances.

Abstract: A coupler includes first and second spaced-apart ribs each defining first and second bores. The first bore of the first rib is aligned with the first bore of the second rib on a first pin-on axis, and the second bore of the first rib aligned with the second bore of the second rib on a second pin-on axis. A first hook assembly includes a first hook adapted to receive a first associated attachment pin. The first hook assembly is fixed relative to the first and second ribs. A second hook assembly includes a second hook adapted to receive a second associated attachment pin. The second hook assembly is selectively pivotable relative to the first and second ribs toward and away from the first hook assembly. An actuator is operatively connected to the second hook assembly to pivot the second hook assembly selectively relative to the first and second ribs.

Abstract: A quick-coupler for operably connecting a bucket or other implement to the arm or dipper-stick of an excavator, backhoe and/or other machine includes a first and second laterally spaced-apart rib assemblies. A first upper bearing plate is connected to the first rib assembly and a second upper bearing plate connected to the second rib assembly. A lower bearing plate is connected to both the first and second rib assemblies and is spaced from the first and second upper bearing plates so that a slot is defined between the lower bearing plate and the first and second upper bearing plates. At least one of the first and second upper bearing plates and the lower bearing plate includes a tab projecting outwardly therefrom that is inserted into a corresponding tab-opening defined in one of the first and second rib assemblies. A lock member is slidably positioned in the slot, and an actuator is located in the space between the first and second rib assemblies.