Patent ID: 6691844
Filing Date: 2004-02-17
Classification: A01B,F16D,Y10T

Abstract:
A drive assembly for agricultural implements with rotatingly driven masses, comprising:a shear pin coupling defining a longitudinal axis having a coupling hub with a seat face, and a bearing seat; a first projection projects radially from the seat face with reference to the longitudinal axis and a first attaching mechanism, said seat face being axially arranged between the first projection and the bearing seat; a coupling sleeve supported on said bearing seat of the coupling hub, said coupling sleeve rotatable relative to said coupling hub; a second projection extending radially relative to the longitudinal axis; a second attaching mechanism having a ratchet gear, said ratchet gear having a bearing bore, said ratchet gear supported on the seat face of the coupling hub and being rotatable relative to said coupling hub, and at least one holding face on said ratchet gear; a shear pin received in receiving bores of the first projection, second projection and ratchet gear, said receiving bores aligned with one another and said shear pin firmly connecting said projections in the direction of rotation around the longitudinal axis, and said receiving bores arranged radially offset relative to the longitudinal axis; a locking device having a locking element, said locking element held in an inactive position, said locking element being displaced manually, either directly or via an actuating device, out of said inactive position into contact with said holding face of the ratchet gear for stopping rotational movement of the ratchet gear.