Patent ID: 6935398
Filing Date: 2005-08-30
Classification: E06B

Abstract:
1. Operating unit for operating a covering which wholly or partially covers at least one opening in a building structure, comprising: a stationary, first profile, a stationary, second profile, a third profile movable between the first and second profile; covering material which is mountable between the third movable profile and the first or second stationary profile and with which the opening can be covered. displacing unit for displacing the movable, third profile, wherein the displacing unit includes a first rotatable winding shaft which is arranged in at least one of said first or second stationary profiles and on which a first and a third winding cord is wound, and extends to said movable, third profile; and a second rotatable winding shaft which is arranged in at least one of said first or second stationary profiles and on which a second and a fourth winding cord is wound, and extends to said movable, third profile, wherein the second winding shaft extends adjacent, and substantially parallel to the first rotatable winding shaft.