Device with shutter winding about a drum
AssigneeDynaco International S.A.
InventorBenoit Coenraets
Life of this patent
Estimating the term…
Abstract
The invention relates to a shutter device co-operating with driving means enabling the shutter (1) to be displaced between an open position and a closed position, this shutter (1) being guided by a guide track (4, 5) and being designed to close off a bay (6) or other opening, this device comprising a drum (8) about which the shutter (1) is wound when the latter is in the open position forming a roll (31) made up of turns formed by successive layers of the shutter (1), and from which the shutter (1) can be unwound into its closed position, confining means being provided to prevent the turns from forming wrinkles as the shutter (1) is being displaced into the closed position and/or to prevent these turns from slipping relative to one another.
Claims22
Shutter device designed to close off a bay (6) or other opening co-operating with driving means enabling the shutter (1) to be displaced between an open position and a closed position and comprising a drum (8) about which the shutter (1) is wound into its open position forming a roll (31) made up of turns formed by the successive layers of the shutter (1), and from which the shutter (1) can be unwound into its closed position, characterised in that confining means (11) are provided to prevent the turns from forming wrinkles as the shutter (1) is displaced into its closed position and/or to prevent these turns from slipping relative to one another.
Device as claimed in claim 18, characterised in that the incompressible component is wound around the drum when the shutter is in its open position forming superposed turns, the incompressible component being provided with hooking means to fix the successive turns one to the other such that a thrust force is applied on the incompressible component along its longitudinal direction as the shutter is unwound by driving the drum. 20. Device as claimed in claim 18 or 19, characterised in that said projecting part is provided at the lower end of the shutter.
Dependencies are inferred from the claim text.