Patent ID: 8869369
Filing Date: 2014-10-28
Classification: A01D,Y10T

Abstract:
1. A device facilitating removal and mounting of a blade having an axial mounting hole for powering by a rotary drive shaft, the device comprising: (a) a housing having a bottom, a false floor defining an axial opening having the configuration of the axial mounting hole of the blade, and the housing having a sidewall slot-opening defining a channel accepting a central portion of the blade between the housing bottom and false floor, said axial opening of the false floor defining a passageway into said channel; (b) a blade-lock member having an axial tip acceptable to said axial opening, the axial tip downstanding toward said axial opening when said blade-lock member is in a raised position, and downstanding substantially into said channel and through the axial mounting hole of the blade when said blade-lock member is in a lowered position, said housing sidewall further comprising a lever port for accepting a lever for raising said blade-lock member to the raised position; and (c) a locking means comprising at least one compression spring between the cap and the blade-lock member for biasing the axial tip of the blade-lock member to the lowered position and locking the blade into said channel; and (d) a cap having a fastening means comprising an axial aperture accepting a drive-bolt which is rotatably fastened within a threaded axial bore of the rotary drive shaft linking the device to the rotary drive shaft.