ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHUPLSK..HR............JDIM350 (Ver 2.1 Jan 2001) 1620000/01473400EUROPEAN PATENT APPLICATIONA320041208EP04425274.020040420ItEnEnfi20030045 U20030422IT20041208200450200411032004457 7D 06B 23/04 A 7B 65H 75/10 BdeDurchlässige halb-feste Garnspule aus formplastischem Material zur FarbbehandlungenPervious semi-rigid bobbin of molded plastics material for spools of yarn intended for treatments in dye worksfrBobine semi-rigide et perméable d'un matériau de moulage de plastic pour traitement de coloration2Romagnoli, Tiziano0181890147327Via Machiavelli n. 4059100 PratoITRomagnoli, TizianoVia Machiavelli n. 4059100 PratoITMannucci, Micheleet al00062522Ufficio Tecnico Ing.A. Mannucci S.R.L, Via della Scala 450123 FirenzeITATBEBGCHCYCZDEDKEEESFIFRGBGRHUIEITLILUMCNLPLPTROSESISKTRALHRLTLVMK20041208200450

On its cylindrical wall the bobbin has adjacent longitudinal rows of holes (5) of substantially rectangular shape with the short sides (5A) orientated circumferentially and the long sides (5B) curving towards the inside of the hole, the holes in one row being offset with respect to those in adjacent longitudinal rows in such a way as to create undulating longitudinal linear structures (9) between the longitudinal rows of adjacent holes (5); the curved longitudinal edges of each hole can lie alongside each other in the intermediate zone following uniform radial compressive stressing of the transverse cross-section of the bobbin, while longitudinal shortening of the bobbin is made easier.