KINKER (BROADENER) MOVING MECHANISM FOR SEWING MACHINE Russian patent published in 2007 - IPC D05B57/30 

FIELD: sewing engineering.

SUBSTANCE: kinker (broadener) moving mechanism has feeler fixed on drive shaft and adapted for engagement with spherical member positioned so as to be shifted on clamp finger. Feeler is made in the form of thin balanced disk with spherical working path on outer eccentric surface. Spherical member is made in the form of sleeve with spherical circular groove on its outer cylindrical surface. Spherical working path of feeler is positioned in groove. Constant contacting of feeler and sleeve spherical surfaces is provided by means of compression spring located between lever fixed on kinker pin and adjustment screw.

EFFECT: reduced inertia and vibration during rotation of feeler and increased service life of kinker moving mechanism.

3 dwg