Quick coupler
AssigneeWedgelock Equipment Limited
InventorsAndre Richard Anderson, Marshall Andrew Stewart Hanlon, Garth Colin Keighley, Andrew James Phillip Rider, Michael Hugh James Rider
Life of this patent
Estimating the term…
Abstract
A coupler for securing an attachment to an earth working machine. The coupler Includes 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.
Claims20
A coupler for securing an attachment to an earth working machine, the coupler comprising a coupler body that comprises a receptacle comprising a mouth opening via which a pin of the attachment can pass to move through a passage of the receptacle to a captive region of the receptacle, the passage of the receptacle able to be occluded sufficient to prevent the pin from moving out of the captive region by a retainer moveably presented from and relative to the coupler body, the retainer being biased to a passage occluded first position at which the retainer prevents the pin from moving out of the captive region and being movable to a second position relative the passage to allow:
- (i) ingress of said pin into the captive region by forcing said pin against the retainer to move the retainer against its bias towards said second position;
- and
- (ii) egress of said pin from the captive region, by a driver able to be moved relative the coupler body to be (a) coupled with the retainer, to allow the retainer to be moved by the driver to its second position and (b) decoupled from the retainer, preventing the driver from controlling the retainer's movement between its first and second positions,
- wherein the driver is coupled to or engageable with a driver actuator to cause the driver to move in a manner able to move the retainer,
- wherein a second receptacle is provided by the coupler body at a location away from said first mentioned receptacle, said second receptacle provided to receive and retain a second pin of the attachment when said first receptacle is retaining said first pin,
- wherein a second retainer is provided, the second retainer able to be moved relative the coupler body between a second retainer first position where it prevents the second pin located in the second receptacle from moving out of the second receptacle, and a second retainer second position where the retained second pin can be released from the second receptacle,
- wherein the second retainer is actuated for movement by a second retainer actuator between the second retainer's first position and second position, and
- wherein the driver actuator is actuated directly or indirectly by the second retainer actuator.
Dependencies are inferred from the claim text.