(19)
(11) EP 0 692 640 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.07.1997 Bulletin 1997/31

(43) Date of publication A2:
17.01.1996 Bulletin 1996/03

(21) Application number: 95610033.3

(22) Date of filing: 12.06.1995
(51) International Patent Classification (IPC)6: F15B 15/26
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
LT LV

(30) Priority: 14.06.1994 DK 680/94

(71) Applicant: V. KANN RASMUSSEN INDUSTRI A/S
DK-2860 Soborg (DK)

(72) Inventor:
  • Rasmussen, Asmus
    DK-5591 Gelsted (DK)

(74) Representative: Raffnsoee, Knud Rosenstand et al
Internationalt Patent-Bureau Hoeje Taastrup Boulevard 23
DK-2630 Taastrup
DK-2630 Taastrup (DK)

 
Remarks:
A request for correction to page 5 line 33 has been filed pursuant to Rule 88 EPC. A decision on the request will be taken during the proceedings before the Exanining Division ( Guidelines for Examination in the EPO , A-V, 2.2 ).
 


(54) A pressure medium controlled operator device for opening and closing a roof window or a hatch


(57) The invention provides an operator device having a cylinder (1) and a piston which is axially displaceable therein and connected with a piston rod (10) for opening a roof window or a hatch. By pressure medium supply to the cylinder, the piston can be actuated for movement between a first end position, in which the window or the hatch is closed, and a second end position corresponding to an open position of the window or the hatch. In the cylinder, a spring-loaded locking mechanism is arranged which is actuated against the spring load by the movement of the piston in a direction towards the second end position, so as to block the piston in this position. A single locking mechanism is used, which is so designed that it can only be deactuated by pressure medium supply to the cylinder. The locking mechanism may be formed as a ball lock having a number of locking balls which are made to block the movement of the piston at movement of the piston. At the supply of pressure medium the balls are released so that the piston can be moved back to its starting position. The locking mechanism can be optionally placed as a bottom or top lock to enable its application for all types of windows or hatches.






Search report