Patent ID: 7219587
Filing Date: 2007-05-22
Classification: B23D,B27B,Y10T

Abstract:
1. A hand-guided power jigsaw ( 10 ) with a jigsaw blade ( 33 ) which can be detachably clamped between the ends of two essentially parallel arms ( 221 , 222 ) comprised of a U-shaped frame ( 22 ) in the form of a tube, and which can be driven in a reciprocating manner by a motor ( 11 ) integrated into the jigsaw ( 10 ), wherein a protruding handle ( 13 ), with a switch button ( 15 ) of an on/off switch is disposed on one of the arms ( 221 , 22 ), wherein a lower one of said arms ( 221 ) carries the motor ( 11 ) and a transmission mechanism ( 114 , 115 , 116 , 119 , 67 ) for moving the saw blade ( 33 ) back and forth in a base housing ( 12 ), wherein a crankshaft ( 116 ) coupled to the motor ( 11 ) by means of a connecting rod ( 67 ) engages an elastic support ( 51 , 57 ) in order to secure the jigsaw blade ( 33 ) in a detachable fashion, wherein the motor ( 11 ) is a direct current motor having a separate motor housing ( 110 ) that encapsulates a rotor with a motor shaft ( 1103 ), its bearings, and a stator comprised of permanent magnets, and which can be connected to a main voltage source via an electronic rectifier.