Bucket attachment device with remote controlled retractable pins

A quick coupling device for attaching and releasing an implement to a boom of an earth moving vehicle, such as an excavator, said quick coupling device comprising:

• a main body having a first end and a second end, said first end having a hook member integrally formed therein for engaging said implement, said second end of said main body having a bore therethrough;
• means for connecting said main body to said boom wherein said quick coupling device is mounted to an end of said boom of said earth moving vehicle;
• a first pivot pin located in said bore in said main body;
• a second pivot pin separate from said first pivot pin located in said bore in said main body and axially aligned with respect to said first pivot pin;
• means for biasing mounted in said bore of said main body between said first and second pivot pins such that said biasing means biases said first and second pivot pins in directions away from each other so that an end portion of each of said first and second pivot pins projects from said bore in said main body;
• and
• means for selectively moving said first and second pivot pins in a direction toward each other, such that said first and second pivot pins are contained within said bore of said main body, said moving means being capable of overcoming said biasing means, said means for selectively moving said first and second pivot pins comprising:
• a first hydraulic cylinder attached to and aligned with said first pivot pin for moving said first pivot pin to a position in which said first pivot pin is contained within said main body;
• and
• a second hydraulic cylinder attached to and aligned with said second pivot pin for moving said second pivot pin to a position in which said second pivot pin is contained within said main body;
• whereby after said main body is connected to said boom, and said boom is manipulated to engage said hook member with said implement at a predetermined point on said implement, and said first and second pivot pins are contained within said main body by said moving means, said bore in said main body is then aligned with a bore in said implement such that when said moving means is disengaged, said biasing means cause said first and second pivot pins to engage said bore in said implement, thereby connecting said implement to said main body and said boom.