Patent ID: 6843188
Filing Date: 2005-01-18
Classification: D05B

Abstract:
1. A sewing machine comprising: a needle bar driving mechanism for vertically moving a needle bar by rotation of a main shaft; a needle thread take-up driving mechanism for vertically moving a needle thread take-up by rotation of the main shaft in phase with vertical movement of the needle bar; a mounting member on which the needle bar driving mechanism and the needle thread take-up driving mechanism are mounted; and a machine frame supporting the mounting member, wherein the mounting member has two sides provided on the left and right of the needle bar driving mechanism and the needle thread take-up driving mechanisms respectively, the mounting member is supported in one of the sides by the main shaft, a rotating shaft rotated with the main shaft or a bearing member for the main shaft or the rotating shaft so that the mounting member is rotated relative to the machine frame and the main shaft or the rotating shaft, the mounting member is supported on the other side by the main shaft or a supporting shaft substantially concentric with the rotating shaft and extending in a same direction as the rotating shaft so that the mounting member is rotated relative to the machine frame and the main shaft or the rotating shaft, and the mounting member is fixed by a fixing member so that rotation thereof is disallowed.