Patent ID: 7966795
Filing Date: 2011-06-28
Classification: A01D,Y10T

Abstract:
1. A rotary mowing implement, comprising: a rotary cutter bar disc; at least one hub connected to the cutter bar disc, the hub having a vertically disposed opening therein disposed about a vertical axis; a blade element having a hole therein; a coupling pin disposed about a longitudinal axis, the coupling pin having a groove of a predetermined shape coupling the blade element to the hub, the pin being insertable through the hole in the blade and through the vertically disposed opening in the hub and being removeably coupled to the hub; and a retaining device that can be moved in a direction transverse to the vertical axis of the opening in the opening in the hub between a first position wherein the retaining mechanism is disposed in the groove of the coupling pin to lock the coupling pin to the hub and a second position wherein the retaining device is not in the groove of the coupling pin to release the pin so that it can be removed from the hub, the retaining device having a top portion, a bottom portion, a left portion and a right portion; and wherein the hub includes guide structure in an abutting relationship with the the left portion and right portion of the retaining device in at least the first and second positions of the retaining device for guiding the retainer member in a linear direction as the retainer member moves between the first and second position thereof.