Patent ID: 8328459
Filing Date: 2012-12-11
Classification: E02F,Y10T

Abstract:
1. A coupler for an excavator, the coupler comprising: a body having first and second recesses for receiving first and second pins, respectively, of an attachment; a power operated latching hook mounted on the body and movable into and out of a latching state in which it prevents the second pin from being removed from said second recess; and a blocking bar mounted on the body and movable into and out of a blocking state in which the blocking bar prevents the first pin from being removed from the first recess, wherein said latching hook and said blocking bar are separate from one another such that said latching hook is capable of movement into and out of the latching state, said movement being independent of movement of said blocking bar, and wherein said latching hook and said blocking bar are configured so that, with the latching hook in said latching state, said blocking bar is movable independently of movement of said latching hook, and wherein, said latching hook and said blocking bar are configured so that, with said blocking bar in said blocking state, upon movement of the latching hook out of the latching state, the latching hook is engagable with the blocking bar to retain the blocking bar in the blocking state.