Loader with ejector-type bucket

Claim 1

In a vertically swinging boom-type loader having a forwardly open bucket pivotally connected to the front end of a boom for tilting movement between rollback, loading and dumping positions and bucket tilt mechanism including an upright lever pivotally connected to an intermediate portion of the boom and a longitudinal link disposed above said boom connected at its opposite ends to the bucket and the upright lever, respectively; an ejector mechanism, comprising: a top ejector part extending substantially the full width of said bucket and pivotally connected on a transverse axis to an upper portion of said bucket, a bottom ejector part extending substantially the full width of said bucket and pivotally connected on a transverse axis to the lower end of said top ejector part, a link part pivotally connEcted at one end to an upper portion of said bucket and pivotally connected at its other end to said bottom ejector part, an ejector actuating linkage including a pair of elements connected to one another for limited relative movement between contracted and expanded positions and means biasing said elements toward said contracted position, means pivotally connecting one of said elements to one of said parts, and means pivotally connecting the other of said elements to said lever on an axis spaced above said connection of said link to said lever, said top and bottom ejector parts being automatically positioned, by said ejector actuating linkage, at the rear of the bucket to form the rear wall thereof when said bucket is in its rollback and loading positions and said ejector mechanism being automatically positioned, by said ejector actuating linkage, in a forwardly disposed eject position when said bucket is moved to its dumping position.