(19)
(11) EP 1 134 178 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
06.11.2002 Bulletin 2002/45

(43) Date of publication A2:
19.09.2001 Bulletin 2001/38

(21) Application number: 01105315.4

(22) Date of filing: 07.03.2001
(51) International Patent Classification (IPC)7: B66C 13/50, B66C 23/66, B66C 13/06
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 10.03.2000 IT TO000220

(71) Applicant: FASSI GRU IDRAULICHE S.p.A.
I-24021 Albino (Bergamo) (IT)

(72) Inventor:
  • Guidorossi, Achille
    24128 Bergamo (IT)

(74) Representative: Modiano, Guido, Dr.-Ing. et al
Spandonari & Modiano S.r.l., Corso Duca degli Abruzzi, 16
10129 Torino
10129 Torino (IT)

   


(54) Limit stop device for lifting cranes, particularly cranes with telescopic arms


(57) A limit stop (10) for lifting cranes (1), particularly cranes with telescopic arms (4), which is constituted by a rigid housing (11) made of metal plate which contains, so that it is freely rotatably pivoted, a pulley (8) for guiding a lifting cable (7) and has, at one end, a contact surface (12) for rigid coupling of the housing to an outer portion (4b) of a telescopic arm (4) which has an inlet (13) for the lifting cable (7) and, at the other end, an outlet (14) for the cable (7), surrounded by contact edges (15) for the abutment portion of the lifting hook (9). The profile of the contact edges (15) is shaped like an arc traced by the involute to a circle whose evolute is a circular contour which is concentric and internal or external or coincident with respect to a pitch circle of the guiding pulley (8).






Search report