Importance

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Abstract

A quick coupler for attaching a tool having first and second generally parallel pins to an excavator or the like has a coupler body and a lock plate assembly. The coupler body includes a pair of generally parallel sidewall plates spaced from and generally parallel to each other, and a set of cross members extending generally between the sidewall plates. The set of cross members includes at least first and second cross members spaced from each other and defining a slide port. The pair of sidewall plates defines a first slot facing in a first direction for engagement with the tool first pin and a second slot facing in a second direction transverse to the first direction for engagement with the tool second pin. The lock plate assembly, for releasable securing engagement of the second slot with the second pin, includes a lock plate and a lock pin. The lock plate is moveable relative to the coupler body along a lock plate axis generally transverse to a longitudinal axis of the second pin, between a first lock plate position engaged with the slide port for obstructing the second slot to secure engagement of the second slot with the second pin, and a second lock plate position removed from obstruction of the second slot for removal or insertion of the second pin in engagement with the second slot. The lock pin, for releasable engagement with the lock plate, is moveable between a first lock pin position engaged with the lock plate in manner to resist removal of the lock plate from its first position engaged with the slide port, and a second lock pin position releasing the lock plate.

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First Claim