Electro-mechanical fastener driving tool

Details Electro-mechanical fastener driving tool Electro-mechanical fastener driving tool

B - Operations, Transporting

27

F

1/12

B27F 7/11 (2006.01) B25C 1/06 (2006.01)

Patent

CA 2013798

ABSTRACT An electromechanical flywheel containing fastener driving tool. The tool comprises a frame supporting a housing, a guide body and a fastener containing magazine. A free floating driver within said frame. Forward and rearward flywheels are arranged in tandem within the tool frame with their peripheral surfaces opposed. A pair of beam-like arcuate load springs are located to either side of the frame. The load spring rearward ends carry bearings in which the shaft of the rearward flywheel is journaled. The load spring forward ends carry rotatable eccentric bearing housings in which the shaft of the forward flywheel is journaled. The bearing housings are rotatable to shift the forward flywheel between operative and inoperative positions wherein the opposed surfaces of the flywheels are spaced by a distance less than and a distance greater than the thickness of the driver, respectively. The load springs permit the forward flywheel to yield slightly from its operative position when the driver is introduced between the flywheels. An electric motor and gear train drive the flywheels in counterrotation regardless of the position of the forward flywheel. A driver return system comprises a stationary idler roller and a return roller and gear train constantly driven by the rearward flywheel and pivotable thereabout between operative and inoperative positions. The driver is shiftable between a retracted position and an extended position A driver trigger released locking means maintains the driver in its normal position. A driver actuator introduces the released driver between the flywheels. The tool has a safety which controls the driver trigger, the driver actuator and the positions of the forward flywheel and the return roller.

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