CONTROL ELEMENT DRIVE MECHANISM MOTER ASSEMBLY HAVING FOUR(4) OR MORE LATCHES

摘要

In the control element drive mechanism motor assembly of the present invention, a latch assembly including a group consisting of four or more latches is formed in an upward end and a downward end. Thereby, abrasion around a latch or pin can be reduced by dividing a force applied to a latch to move a driving shaft. Also, latches are additionally arranged on the outer surface of the driving shaft so that they are symmetrically combined in driving a motor assembly or the latches guides the driving shaft to be located in the center of the motor assembly, assists driving stability, and improves durability as the number of the latch assemblies are increased. Also, the contract area of the latch and the driving shaft is maximized by forming four latches or more. The width and size of the latch can be minimized by arranging them with constant distance along the outer surface of the driving shaft.