Abstract: This invention related to a coupler for securing an attachment to an earth working machine. The coupler comprises a coupler body that presents a receptacle having a capture region. A pin of an attachment can move into and out of the capture region. A retainer can capture the pin in the capture region but the retainer can be moved by a hydraulically driven driver to a position to allow release the pin from the capture region. A trigger that the pin will strike when the pin moves into or out of the capture region, decouples the driver from the retainer and the retainer is then allowed to be biased back to its retaining position by a spring.

Abstract: A wedge locking element (10) for a locking device of a quick coupler A for coupling the pin P2 of an attachment to earth working machinery. The wedge locking element (10) has a sloping wedge surface (13). Projecting from the wedge surface (13) is an engagement surface (12) with which the attachment pin P2 can engage but not apply any substantial driving force to the wedge locking element (10) in the event of failure of a force maintaining the wedge locking element (10) in a position where the pin P2 is retained with the coupler A. The pin engagement surface (12) lies in a plane that is substantially in line with the direction in which the locking element (10) is, in use, moved by the driving force.

Abstract: A coupler for securing an attachment to an earth working machine. The coupler comprises a coupler body that presents a receptacle having a capture region. A pin of an attachment can move into and out of the capture region. A retainer can capture the pin in the capture region but the retainer can be moved by a hydraulically driven driver to a position to allow release the pin from the capture region. A trigger that the pin will strike when the pin moves into or out of the capture region, decouples the driver from the retainer and the retainer is then allowed to be biased back to its retaining position by a spring.

Abstract: A coupler for securing an attachment to an earth working machine. The coupler comprises a coupler body that presents a receptacle having a capture region. A pin of an attachment can move into and out of the capture region. A retainer can capture the pin in the capture region but the retainer can be moved by a hydraulically driven driver to a position to allow release of the pin from the capture region. A trigger that the pin will strike when the pin moves into or out of the capture region, decouples the driver from the retainer and the retainer is then allowed to be biased back to its retaining position by a spring.

Abstract: A coupler for securing an attachment to an earth working machine. The coupler comprises a coupler body that presents a receptacle having a capture region. A pin of an attachment can move into and out of the capture region. A retainer can capture the pin in the capture region but the retainer can be moved by a hydraulically driven driver to a position to allow release the pin from the capture region. A trigger that the pin will strike when the pin moves into or out of the capture region, decouples the driver from the retainer and the retainer is then allowed to be biased back to its retaining position by a spring.

Abstract: Quick couplers release one attachment and quickly attach another attachment to the end of the arm. Different attachments are available with differing widths. The attachments comprise of a front and a back pin that are able to engage with the quick coupler. The front pin and/or the back pin are preferably presented mounted to side plates that are secured to the bucket of the attachment. The spacing between the side plates may vary from attachment to attachment. The present invention is a packer that is able to engage with a quick coupler so as to prevent slop when attachments narrower than the quick coupler are used.

Abstract: This invention related to a coupler for securing an attachment to an earth working machine. The coupler comprises a coupler body that presents a receptacle having a capture region. A pin of an attachment can move into and out of the capture region. A retainer can capture the pin in the capture region but the retainer can be moved by a hydraulically driven driver to a position to allow release the pin from the capture region. A trigger that the pin will strike when the pin moves into or out of the capture region, decouples the driver from the retainer and the retainer is then allowed to be biased back to its retaining position by a spring.

Abstract: This invention related to a coupler for securing an attachment to an earth working machine. The coupler comprises a coupler body that presents a receptacle having a capture region. A pin of an attachment can move into and out of the capture region. A retainer can capture the pin in the capture region but the retainer can be moved by a hydraulically driven driver to a position to allow release the pin from the capture region. A trigger that the pin will strike when the pin moves into or out of the capture region, decouples the driver from the retainer and the retainer is then allowed to be biased back to its retaining position by a spring.

Abstract: An indicator for a quick coupler for the mounting of an attachment to an earth working machine. The indicator (10) has a sensor (14,15) which, in response to movement of a movable pin engagement component (F) of a coupler (A), determines that the pin engagement component (F) will have moved sufficiently to engage and lock a pin (P2) of an attachment with the coupler (A). The indicator (10) has an indicating part (17) which is caused to be moved in response to the sensor (14,15) to thereby provide a visual indication (25) that engagement and locking of the pin (P2) has occurred.

Abstract: A locking mechanism 10 for a quick coupler A has a movable locking element 11. A biasing element 13 is adapted to bias the locking element 11 to move in a first direction. An operator 12 is arranged to move the locking element 11 against the bias of the biasing element 13. The locking element 11 has teeth or serrations 19 which, when the locking element 11 is moved by the biasing element 13 in the first direction, is engageable with further teeth or serrations 20 coupled to a movable wedge element F of the quick coupler A to lock the wedge element 11 against movement. The movement of the locking element 11 creates a compressive force that causes the teeth/serrations 19, 20 to positively mesh and remain meshed.

Abstract: An implement pivots with respect to an earth moving or materials handling machine to which the implement is attached. The implement may be a bucket adapted to pivot laterally with respect to an excavator or other machine to which the bucket is attached. An adjustment arrangement includes a linear actuator which operates along a substantially fixed axis to drive the pivoting movement. The linear actuator may drive a rack which engages with a pinion to cause pivoting movement.

Abstract: A mounting for a tooth bar to a mounting surface of a thumb sub-assembly, the mounting including one or more inwardly narrowing slots located adjacent the mounting surface and into which a part of a mounting portion of the tooth bar can be wedgingly engaged, there being fixing means for fixing the tooth bar into engagement with the mounting surface following the mounting portion being wedgingly engaged.

Abstract: A safety locking device 18 for a quick hitch/coupler 10 of an earth working machine. The safety locking device 18 has a locking element 21 which is biased into a locking position to automatically lock a front pin of an implement when it is engaged in the hook 14 of the coupler 10. The safety locking device 18 has an hydraulic operable mechanism to move the locking element 21 to an unlocking position. The hydraulic supply to the safety locking device 18 is independent of the hydraulic supply to a locking mechanism 16 of the coupler 10.