Patent ID: 6647749
Filing Date: 2003-11-18
Classification: D04B

Abstract:
A yarn feeding device of a flat knitting machine comprising at least a pair of front and back needle beds which are so disposed that their front ends confront each other in an abutment relation; a number of knitting needles arranged in line on the needle beds in such a manner as to be freely advanced and retracted; a yarn guide rail arranged over the needle beds to extend in parallel with a longitudinal dimension of the needle beds; a yarn carrier for feeding a yarn to the knitting needle which is movably arranged in the yarn guide rail; carrier accompanying means including an accompanying member for releasing the yarn carrier from accompaniment at any position of the needle beds, the yarn carrier comprising:a carrier base having, at an upper end on a center side thereof, an engaging portion engageable with the accompanying member of the carrier accompanying means and supported on the yarn guide rail in such a manner as to move in reciprocation along the longitudinal dimension of the needle beds; reciprocating means supporting on the carrier base in such a manner as to move in reciprocation with respect to a traveling direction of the carrier base and having, at an outside of the engaging portion of the carrier base with respect to the traveling direction, an engaging surface temporarily engageable with the accompanying member of the carrier accompanying means; feeder means having, at its front end, a main-yarn feeding hole and a plating-yarn feeding hole, extending vertically downwardly from the carrier base, and supporting at least one of the yarn feeding holes in such a manner as to freely rotatable about an axis in a longitudinal direction of the feeder means; and movement conversion means for converting reciprocating movement of the reciprocating means into rotation movement of the yarn feeding holes provided in the feeder means in such a manner that when the reciprocating means is moved with its engaging surface engaged with the accompanying member, the yarn feeding holes of the feeder means can be rotationally displaced to change a positional relationship between the main-yarn feeding hole and the plating-yarn feeding hole over a needle bed gap between the needle beds, wherein the carrier accompanying means is electrically controlled so that when the yarn carrier is accompanied by the accompanying member and/or is released from the accompaniment, the carrier accompanying means can be selectively engaged with or disengaged from the engaging surface of the reciprocating means.