Patent ID: 7430974
Filing Date: 2008-10-07
Classification: D05B

Abstract:
1. A fly sewing machine for sewing plural flies made of fabric piece to a long slide fastener chain continuously, comprising: a fly carrying portion disposed on an upstream side of a fly carrying passage between a fly supply portion and a sewing portion and a carrying speed adjusting portion disposed on a downstream side, wherein the fly carrying portion comprises plural pairs of carrying rollers including drive rollers and supporting rollers disposed vertically so as to oppose to each other, the carrying speed adjusting portion comprises a pair of a drive roller and a supporting roller disposed vertically and roller gap adjusting means for adjusting a gap between the drive roller and the supporting roller, and wherein a carrying speed for the fly carrying portion by each pair of the carrying rollers is the same, a carrying speed of the carrying speed adjusting portion is set lower than the carrying speed of the fly carrying portion, and a sewing speed of the sewing portion is set lower than the carrying speed of the carrying speed adjusting portion.