Patent ID: 6379075
Filing Date: 2002-04-30
Classification: E02F,Y10T

Abstract:
Quick coupler apparatus for releasably attaching a work implement having spaced apart parallel first and second attachment pins to a boom of a prime mover, comprising:a body portion releasably securable to the boom and having spaced apart first and second recess areas operative to respectively and releasably receive the first and second work implement attachment pins; a latch member carried by said body portion for movement relative thereto between (1) a locking position in which said latch member engages a first side portion of the first attachment pin in a manner captively retaining the first and second attachment pins respectively in said first and second recess areas, and (2) an unlocking position in which said latch member is disengaged from the first attachment pin and permits removal of the first and second attachment pins respectively from said first and second recess areas; a drive structure operative to selectively drive said latch member between said locking and unlocking positions; a locking structure operative to releasably hold said latch member in said locking position; said locking structure comprising a spring structure resiliently biasing said latch member toward said locking position and a stop structure operative to engage the first attachment pin on a second side portion thereof and being adjustable toward and away from said latch member, said locking structure further including an opposed pair of openings formed in said body portion, and a blocking member extendable through said openings, when said latch member is in said locking position, and being operable to mechanically block movement of said latch member from said locking position to said unlocking position.