Patent ID: 6910433
Filing Date: 2005-06-28
Classification: D05B

Abstract:
1. A presser device for a sewing machine comprising: a push-up lever rotatably supported at the back side of a sewing machine frame, said push-up lever being forced in one direction by a spring, a coupling lever coupled to the push-up lever, an oscillating shaft rotatably supported on a bush, with a part of the oscillating shaft being engaged with the coupling lever, a presser base coupled to a crank piece of the oscillating shaft through a pin, with a presser foot being fixed at the leading end of the presser base, and an elastic member engaged with the presser base, whereby the leading end of the presser base is elastically forced downward about the oscillating shaft by the elastic member, and the cloth is pressed to a platform of the sewing machine bed, said device is characterized in that a bracket is supported on the back side of the sewing machine frame detachably and changeably in a fixing position vertically, said bush is fixed in the bracket, said crank piece of the oscillating shaft is separable in two pieces, and the engaging faces of the two separated crank pieces are fixed anew by deviating by 180 degrees when changing the fixing position of the bracket, so that an eccentric portion of the crank piece is not changed from an initial setting position.