Feed blade and yarn length measuring device using the same

摘要

Problem to be solved: to provide a feed blade which is hard to deteriorate and can be used for a long period and a yarn length measuring and storing apparatus using the same.Solution: the support blade is made of aluminum, aluminum alloy, which is provided with a plate shaped support portion curved in an arc shape and a plurality of sliding contact portions arranged at predetermined intervals along the circumferential direction on the outer circumferential surface radially outward of the support part. Made of magnesium or magnesium alloy, the sliding contact is made of ceramics mainly composed of aluminum oxide or zirconium oxide.Diagram