Pervious semi-rigid bobbin of molded plastics material for spools of yarn intended for treatments in dye works

(19)

(11)

EP 1 473 400 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	08.12.2004 Bulletin 2004/50

(43)	Date of publication A2:
	03.11.2004 Bulletin 2004/45

(21)	Application number: 04425274.0

(22)	Date of filing: 20.04.2004

(51)	International Patent Classification (IPC)⁷: D06B 23/04, B65H 75/10

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL HR LT LV MK

(30)

Priority:

22.04.2003 IT fi20030045 U

(71)	Applicant: Romagnoli, Tiziano
	59100 Prato (IT)

(72)	Inventor:
	Romagnoli, Tiziano 59100 Prato (IT)

(74)	Representative: Mannucci, Michele et al
	Ufficio Tecnico Ing.A. Mannucci S.R.L, Via della Scala 4 50123 Firenze 50123 Firenze (IT)

(54)	Pervious semi-rigid bobbin of molded plastics material for spools of yarn intended for treatments in dye works

(57) 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.

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