Patent ID: 6564728
Filing Date: 2003-05-20
Classification: A01B

Abstract:
A resetting mechanism for mounting a ground-engaging tool to an agricultural toolbar having a generally upright rear surface, comprising:a shank carrying said tool; a toolbar mount mountable to the toolbar and including at least one side plate engaging said toolbar and extending rearwardly thereof; a first pivot mount carrying said shank and pivotally mounted at a first location to the at least one side plate for rotation from a use position when the tool is in a field use position to a tripped position generally above said use position when the tool engages an obstacle; a spring assembly including at least one pre-loaded coil spring and having a lower end pivotally mounted to the first pivot mount; a second pivot mount pivotally mounting said spring assembly to the at least one side plate so as to orient the spring member to de an action line; at least one member rigidly linked to and extending from the at least one side plate and having a lower edge providing a limit position for the first pivot mount in said tripped position, the member positioned so as to prevent the action line from passing over center of the first pivot location; and a saddle member mounted to and extending from the at least one side plate and extending below the first pivot mount to limit the downward motion of the first pivot mount when the shank is in the field use position.