(19)
(11) EP 1 570 923 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.01.2007 Bulletin 2007/04

(43) Date of publication A2:
07.09.2005 Bulletin 2005/36

(21) Application number: 05075457.1

(22) Date of filing: 25.02.2005
(51) International Patent Classification (IPC): 
B08B 15/00(2006.01)
 F16L 27/08(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 02.03.2004 IT MI20040380

(71) Applicant: Airbox S.r.l.
00125 Roma (IT)

(72) Inventor:
  • Bellieni, Lucio
    00100 Roma (IT)

(74) Representative: Colombo, Stefano Paolo et al
Marchi & Partners S.r.l., Via G.B. Pirelli, 19
20124 Milano
20124 Milano (IT)

   


(54) Pantograph suction arm with variable fastening of the balancing springs


(57) A pantograph suction (110) arm is described, said arm comprising a first tube section (111) connected to a base (117), a second tube section (112) connected to a frame in the form of a hinged quadrilateral (118) on the base side, and a first elongated resilient balancing element (122) cooperating with said hinged quadrilateral frame (118) on the base side, one end (122a) of said elongated resilient balancing element (122) being pivotably mounted on said hinged parallelogram frame (118) on the base side, the other end (122b) of said resilient element (122) being pivotably mounted at a point (130) movable depending on the position of said hinged parallelogram (118).







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