(19)
(11) EP 0 234 925 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.11.1987 Bulletin 1987/46

(43) Date of publication A2:
02.09.1987 Bulletin 1987/36

(21) Application number: 87301623

(22) Date of filing: 25.02.1987
(84) Designated Contracting States:
AT BE CH DE FR GB LI LU NL

(30) Priority: 28.02.1986 DE 3606563
28.02.1986 DE 8605429
28.02.1986 DE 8605430

(71) Applicant: COLT INTERNATIONAL HOLDINGS A.G.
 ()

(72) Inventors:
  • Peters, Norbert
     ()
  • Daams, Dietmar
     ()

   


(54) Ventilation device for building roofs


(57) The device has a rectangular housing (2) defining a ventilation opening controlled by flaps (5) pivotally movable about hinge axes (6) by means of a drive device (not shown). The flaps (5) each consist of an elongated, flat, extruded hollow-section body (102) of plastics material having a rear edge reinforcing tube (105) with a flange extension (106) at the bottom and an inserted reinforcing section (108) at its underside with two added bearing blocks (111) for a pivot drive. The pivot blocks (111) are disposed close to the ends of the hollow-­section body (102) and are connected at their front end, to the reinforcing section (108) and at their rear end to the flange extension (106) to form a reinforced skeleton for the flap.







Search report