초록 ▼

A coupling for releasably attaching a tool to the boom of a material handler includes a receiver having attachment member on one end, a generally circular cavity in the other end, and a plurality of circumferentially spaced arcuate ribs intermediate the axial length thereof defining an axially exten

A coupling for releasably attaching a tool to the boom of a material handler includes a receiver having attachment member on one end, a generally circular cavity in the other end, and a plurality of circumferentially spaced arcuate ribs intermediate the axial length thereof defining an axially extending circular passage centrally thereof and axially extending channels between the spaced ends thereof. Stops on one end of the ribs extending upwardly and stops on the other end extend downwardly. A connector has one end portion seated in the receiver passage with radially extending lugs extending under the ribs. A locking member is movably seated in a passage in the receiver to preclude rotation of the connector.

대표청구항 ▼

A coupling for releasably attaching a tool to a boom of a material handler, comprising: (a) a receiver having (i) attachment means on one end adapted for mounting on one of said tool and the boom of said material handler, (ii) a generally circular cavity in the other end thereof, (iii) a plurality o

A coupling for releasably attaching a tool to a boom of a material handler, comprising: (a) a receiver having (i) attachment means on one end adapted for mounting on one of said tool and the boom of said material handler, (ii) a generally circular cavity in the other end thereof, (iii) a plurality of circumferentially spaced ribs of arcuate configuration extending radially inwardly of said cavity intermediate the axial length thereof and defining an axially extending circular passage centrally thereof and axially extending channels between the spaced ribs thereof, a surface of said ribs facing said other end providing a guide surface and an opposite surface providing a retention surface, (iv) first stops on one circumferential end of said ribs extending axially toward said other end of said receiver, (v) second stops on the other circumferential end of said ribs extending axially toward said one end of said receiver, the circumferential spacing between said ends of said ribs and said first and second stops defining said axially extending channels; (b) a connector having (i) one end portion of generally circular cross section seated in said circular passage of said receiver, (ii) a plurality of circumferentially spaced, radially extending lugs adjacent the end of said one end portion extending under said retention surface of said ribs and abutting said second stops, said lugs being cooperatively dimensioned and configured with respect to said axially extending channels to permit passage of said lugs therethrough, (iii) attachment means on its other end adapted for mounting on the other one of the tool and boom; and, (c) a locking member movably seated in a passage in said receiver, said locking member having (i) an inner end portion abutting one of said lugs to preclude rotation of said connector in said circular passage of said receiver; and (ii) means for effecting the movement of said inner end portion in said circular passage to free said one lug and thereby said connector for rotation, whereby said connector may be coupled to said receiver by moving said connector axially into said passage in said one end of said receiver until said lugs abut said guide surface of said ribs, effecting relative rotation of said connector toward said axially extending channels until said lugs abut said first stops and are in axial alignment with said channels, axially moving said connector further into said circular passage of said receiver and said lugs axially in said channels, and effecting relative rotation until said lugs abut said second stops.