Reinforcing frame for abrasive discs

(19)

(11)

EP 1 510 292 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	25.05.2005 Bulletin 2005/21

(43)	Date of publication A2:
	02.03.2005 Bulletin 2005/09

(21)	Application number: 03028542.3

(22)	Date of filing: 11.12.2003

(51)	International Patent Classification (IPC)⁷: B24D 5/04, B24D 5/08, B24D 7/04, B24D 7/08

(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 PT RO SE SI SK TR
	Designated Extension States:
	AL LT LV MK

(30)

Priority:

29.08.2003 IT BO20030502

(71)	Applicant: Davide Maternini S.p.A.
	21046 Malnate (Varese) (IT)

(72)	Inventor:
	Maternini, Giuseppe 21046 Malnate (Varese) (IT)

(74)	Representative: Dall'Olio, Giancarlo
	INVENTION s.a.s., Via delle Armi, 1 40137 Bologna 40137 Bologna (IT)

(54)	Reinforcing frame for abrasive discs

(57) The frame for abrasive discs includes a one-piece gridlike structure, obtained by molding of a material which can be molded by injection.
The frame (1) includes a plurality of concentric and substantially thread-like circumferential elements (2), which are disposed, at predefined distances one from another, between an inner edge circumferential element (3) and an outer edge circumferential element of the (4). The frame (1) includes also a plurality of radial elements (5,6), substantially thread-like and extending for predetermined lengths and with predetermined angular distances. Each of said radial elements (5,6) is connected to at least a part of the circumferential elements (2) in the region of relative intersection points (7).

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