Patent ID: 6729812
Filing Date: 2004-05-04
Classification: B23B,Y10T

Abstract:
A method of assembling a power driver, said method comprising the steps of:(a) providing a power driver motor having an output shaft; (b) providing a power driver housing that defines a chamber in which said output shaft is disposed; (c) providing an assembled geared tool holder that includes a generally cylindrical chuck body having a nose section and a tail section opposite said nose section, wherein said nose section has an axial bore formed therein and wherein said bore is configured to receive a tool therein, a plurality of jaws disposed within said chuck body and movable toward and away from said axial bore, a planetary gear assembly disposed operatively about the axis of, and in driving communication with, said tail section so that a plurality of input planetary gears of said gear assembly are simultaneously rotatable about their respective gear axes in driving engagement with each other to rotationally drive said chuck body about said axis of said tail section when said jaws grip a tool received within said axial bore, and a tool holder housing, at least a portion of which is shaped matingly with respect to at least a portion of said chamber; and (d) following step (c), assembling said geared tool holder with said power driver motor and said power driver housing so that said output shaft is directly received in driving engagement with said input planetary gears and so that said at least a portion of said tool holder housing is matingly received by said chamber to axially retain said assembled geared tool holder within said power driver housing.