Patent ID: 7574970
Filing Date: 2009-08-18
Classification: D05B

Abstract:
1. A presser device for a sewing machine which includes a presser bar, a needle and a needle bar assembly, the presser device comprising: a presser foot assembly which is connected to a lower end of the presser bar to press workpiece cloth to be sewn; a first lever having a cloth pressing portion which is swingably mounted on the presser foot, the cloth pressing portion being swung so as to be switchable between a cloth pressing position where a part of the workpiece cloth located near a needle location of the needle is pressed by the cloth pressing portion when the needle is moved downward and a raised position to which the cloth pressing portion is raised from the cloth pressing position; a second lever having a support portion where the second lever is pivotally supported on an upper part of the first lever and an abutment portion which is normally in abutment with the needlebar assembly moved up and down; a first biasing member which biases the first lever so that the first lever is caused to pivot in such a direction that the cloth pressing portion becomes a cloth pressing position; and a second biasing member which biases the second lever so that the second lever is caused to pivot in such a direction that the abutment portion of the second lever abuts against the needlebar assembly.