Quick coupler
AssigneeWedgelock Equipment Limited
InventorsAndre Richard ANDERSON, Garth Colin KEIGHLEY, Andrew James Phillip RIDER, Michael Hugh James RIDER
Life of this patent
Estimating the term…
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.
Claims43
A coupler for securing an attachment to an earth working machine, comprising a coupler body that presents a receptacle comprising a mouth opening via which a pin of an attachment can pass to move through a passage of the receptacle to a capture 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, biased to a passage occluded first position at which the retainer prevents the pin from moving out of the captive region and that can be moved to a second position relative the passage to allow:
- (i) the 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 able to (b) decoupled from the retainer, preventing the driver from controlling the retainer position between its first and second positions,
- wherein the coupler further comprises a trigger that is moveable relative the coupler body in a manner to be engaged and able to be moved by said pin as the pin moves through the passage in a manner so that the trigger can, when so moved by said pin, cause the driver to decouple from the retainer.
A coupler for releasably coupling an attachment that includes a coupling pin, to an earth working machine, the coupler comprising,
- a. a coupler body secured or able to be secured to the earth working machine,
- b. a receptacle presented by the coupler body adapted to receive said pin
- c. a retainer presented by the coupler body in a moveable manner relative to the body to, in a pin retaining position relative the coupler body, retain the pin in the receptacle, the retainer coupleable and de-coupleable with a driver that, when coupled to the retainer, can move the retainer from the pin retaining position to a position where the pin can egress the receptacle,
- d. a trigger that is able to be contacted by said pin as the pin moves relative to the body to enter and leave the receptacle to cause the retainer and the actuator to decouple.
A coupler for releasably coupling an attachment that includes a coupling pin to an earth working machine, the coupler comprising,
- a. a coupler body,
- b. a receptacle presented by the coupler body to receive said pin via a mouth of the receptacle,
- c. a retainer located by the body in a manner able to move relative the receptacle between a first position to retain said pin in the receptacle and a second position to allow the release of said pin from the receptacle, the retainer able to move, against a bias urging the retainer towards the first position, to or towards the second position by each of:
- i. the pin when the pin moves via the mouth into the receptacle to allow the pin to move into the receptacle to be retained thereat by said retainer, and
- ii. a driver located by the body in a manner to be able to move between an actuator coupled and decoupled condition and that can be actuated to move relative to the coupler body to move the actuator it its second position, and
- d. a trigger located by the body and presented relative the receptacle to be contacted by said pin and be moved by said pin relative the body when said pin moves in at least one of (i) a direction to move into the receptacle, and (ii) a direction to move out of the receptacle, to cause a coupled retainer and driver to move to decouple so that the retainer, if not in its first position, is able to move to its first position by the bias.
A coupler for securing an attachment, that includes a mounting pin, to an earth working machine, the coupler comprises a coupler body that presents a receptacle having a capture region to receive the mounting pin and a retainer to capture the pin in the capture region when in a retaining position relative to the body, the retainer able to be moved relative to the body by a driven driver to a position to allow release of the pin from the capture region and a trigger presented from said body in a manner that the pin will strike the trigger when the pin moves into and out of the capture region that then moves to decouple the driver from the retainer and the retainer is then allowed to move back to its retaining position under the influence of a bias acting on the retainer.
A coupler for securing an attachment, that includes a mounting pin, to an earth working machine, the coupler comprises a coupler body that presents a receptacle having a capture region to receive the mounting pin and a retainer to capture the pin in the capture region when in a retaining position relative to the body, the retainer able to be moved relative to the body by a driven driver to a position to allow release of the pin from the capture region and a trigger presented from said body in a manner that the pin will strike the trigger when the pin moves into and out of the capture region that then moves to decouple the driver from the retainer and the retainer is then not constrained by the driver to move back to its retaining position.
Dependencies are inferred from the claim text.