(19)
(11) EP 0 276 045 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.06.1989 Bulletin 1989/23

(43) Date of publication A2:
27.07.1988 Bulletin 1988/30

(21) Application number: 88300007.7

(22) Date of filing: 04.01.1988
(51) International Patent Classification (IPC)4: E06B 9/56
(84) Designated Contracting States:
BE DE ES FR IT NL SE

(30) Priority: 17.01.1987 GB 8700987
22.05.1987 GB 8712184

(71) Applicant: Clark Door Limited
Carlisle, CA2 5RR (GB)

(72) Inventors:
  • Ashley, Paul
    Dalston Carlisle, Cumbria (GB)
  • Chapman, John Unite
    Carlisle Cumbria (GB)

(74) Representative: Lyons, Andrew John et al
ROYSTONS Tower Building Water Street
Liverpool L3 1BA
Liverpool L3 1BA (GB)


(56) References cited: : 
   
       


    (54) Improvements in and relating to roller doors


    (57) A roller door assembly has means (18-26) for tensioning same wherein a load is applied to a bottom edge of the roller (12) and means (30-38) for counterbalancing the weight of the door (10) wherein a load is applied to the roller, the loads exerted by both said means being dependent on the amount of door off the roller.







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