Flyer assembly for roving frame

A flyer for a roving frame, comprising:

• at least one flyer arm extending alongside a bobbin to be wound on the flyer frame and means for rotating the flyer to orbit the flyer arm about a bobbin axis;
• a pressing finger pivotally mounted on said flyer arm so as to pivot about a pivot axis on said flyer arm located at a centrum of said pressing finger located at a radius R from said bobbin axis upon orbitting of said flyer arm, said pressing finger comprising:
• a pressing-finger bar extending along said flyer arm and pivotally connected thereto,
• a pressing-finger arm rigidly connected to said pressing-finger bar, extending transversely thereto and swingable toward and away from said bobbin upon pivoting of said pressing-finger bar about said pivot axis on said flyer arm, and
• a pressing-finger blade on an end of said pressing-finger arm for guiding a roving onto said bobbin, said pressing-finger bar being engageable by an actuating element for swinging said arm into an outwardly swung position, said pressing finger having a center of gravity shiftable from within said radius R to outside said radius R upon swinging about said pivot axis;
• and
• at least one spring having a spring force acting upon said pressing finger only while said center of gravity is within said radius R, said spring includes a retaining rod which is guided through fastening eyes of the flyer arm and the pressing finger together, whereby the retaining rod at a lower end is fastened so as to be nonrotatably engaged with the flyer arm and at an upper end is fastened in a clamping piece which rests on the upper fastening eye of the flyer arm whereby the clamping piece simultaneously is an abutment for the pressing finger rod in an outwardly swung position of the pressing finger in which the center of gravity of the pressing finger continues to lie outside the radius R.

A flyer for a roving frame, comprising:

• at least one flyer arm extending alongside a bobbin to be wound on the flyer frame and means for rotating the flyer to orbit the flyer arm about a bobbin axis;
• a pressing finger pivotally mounted on said flyer arm so as to pivot about a pivot axis on said flyer arm located at a centrum of said pressing finger located at a radius R from said bobbin axis upon orbitting of said flyer arm, said pressing finger comprising:
• a pressing-finger bar extending along said flyer arm and pivotally connected thereto,
• a pressing-finger arm rigidly connected to said pressing-finger bar, extending transversely thereto and swingable toward and away from said bobbin upon pivoting of said pressing-finger bar about said pivot axis on said flyer arm, and
• a pressing-finger blade on an end of said pressing-finger arm for guiding a roving onto said bobbin, said pressing-finger bar being engageable by an actuating element for swinging said arm into an outwardly swung position, said pressing finger having a center of gravity shiftable from within said radius R to outside said radius R upon swinging about said pivot axis;
• and
• at least one spring having a spring force acting upon said pressing finger only while said center of gravity is within said radius R, an abutment piece resting on an upper fastening eye of the flyer arm and having a receiver for an actuating means guided through upper fastening eyes in common of the flyer arm and the pressing finger and a spring element provided on the abutment piece to actuate the pressing finger against a spring force when the pressing finger is swung out of the region in which the center of gravity of the pressing finger lies outside the radius R.