(19)
(11) EP 0 621 392 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.03.1995 Bulletin 1995/10

(43) Date of publication A2:
26.10.1994 Bulletin 1994/43

(21) Application number: 94200784.0

(22) Date of filing: 30.03.1994
(51) International Patent Classification (IPC)5: E06B 9/40, E06B 9/90, E06B 9/60
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI NL SE

(30) Priority: 05.04.1993 IT MI930665

(71) Applicant: ACRIMO ITALIA S.r.l.
I-22060 Figino Serenza (Como) (IT)

(72) Inventor:
  • Bianchi, Alberto
    I-22072 Cermenate, Como (IT)

(74) Representative: Fusina, Gerolamo et al
Ing. Barzanò & Zanardo Milano S.p.A, Via Borgonuovo, 10
I-20121 Milano
I-20121 Milano (IT)


(56) References cited: : 
   
       


    (54) Automatic tensioning and locking device for roller blinds and mosquito-curtains


    (57) An automatic tensioning and locking device for fabric and/or netting roller blinds and mosquito-curtains, to be associated with a roller box endpiece provided with a support pin (16) for a winding roller in which a return spring (18) and a drive bush (19) for said roller interact between said roller and said support pin (16), about said drive bush (19) there being wound a spiral spring (18) the ends of which alternately abut against a cam unit which is rotatable coaxially with the drive bush and carries a pin (26) which interacts with an elastically loaded stop element rockable at least between a position in which said fabric and/or netting can freely unwind, a position in which unwinding/rewinding are prevented with stoppage of said pin, and a position in which said fabric and/or netting can be wound.






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