capsule machine with rotary hook for sewing lockstitch comprising means to reduce the clearance between the capsule and the basket and to reduce noise.

摘要

A rotary hook for a lockstitch sewing machine, comprising at least a looper body comprising a circular cavity, from a free to rotate in the circular cavity basket (6), by a capsule (8) housed in the drum (6) and by a bobbin housed in the capsule (8), further comprising means (30) adapted to create a friction between the capsule (8) and the basket (6), so as to prevent the capsule (8) to move and vibrate freely within the games present between said capsule (8) and said basket (6) and consequently reduce the noise produced during sewing.