(19)
(11) EP 0 294 748 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.06.1989 Bulletin 1989/26

(43) Date of publication A2:
14.12.1988 Bulletin 1988/50

(21) Application number: 88109010.4

(22) Date of filing: 06.06.1988
(51) International Patent Classification (IPC)4: A47L 11/40
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR LI LU NL SE

(30) Priority: 12.06.1987 IT 2178987 U

(71) Applicant: IDROPLINA S.r.l.
I-43012 Sanguinaro di Fontanellato (Parma) (IT)

(72) Inventor:
  • Torta, Nello
    I-43014 Felegara di Medesano (Parma) (IT)

(74) Representative: Lunati, Vittoriano 
LUNATI & MAZZONI S.a.s. Via Carlo Pisacane, 36
20129 Milano
20129 Milano (IT)


(56) References cited: : 
   
       


    (54) A drive system for floor and surface sweeping machines


    (57) The invention relates to a drive system for a floor and surface sweeping machine, comprising an electric motor (2), a reduction gear (3) for stepping down the electric motor (2) rpm, two drive wheels (5) placed side-by-side at a distance apart, and two hubs (4a), each engaged coaxially with one drive wheel (5) and led to the reduction gear (3), the hubs (4a) being carried directly on the reduction gear (3) and equally driven rotatively from the reduction gear (3), and between the drive wheels (5) and the hubs (4a) there being inserted two free-wheel mechanisms (6) adapted to permit free rotation of the drive wheels (5) relatively to the hubs (4a) in the same direction of rotation as the hubs (4a) and direction of advance of the sweeping machine.







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