Closure device with a flexible screen
AssigneeDynaco International S.A.
InventorBenoit Coenraets
Life of this patent
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Abstract
According to the invention, the lateral edges of the screen are substantially incompressible or rendered incompressible in their lengthwise direction. A driving device is provided making it possible to apply a thrust force to these edges in the longitudinal direction of the edges in their guide channels in order to move the screen towards its closed position and towards its open position. The screen is provided, near or on the lateral edges mentioned above, with a series of members which are substantially rigid in the longitudinal direction of these edges. These members are able to bear against one another in the direction of the lateral edges, and are preferably able to be articulated with respect to each other such as to allow the rolling up or flexion of the screen in its open position.
Claims29
A closing device comprising a flexible screen (1) having lateral edges (2) guided in guide channels (3) to permit the screen (1) to be moveable between a closed position and an open position, wherein said edges (2) are substantially incompressible in a direction of movement of the screen towards the closed position in a longitudinal direction of said edges, and driving means for applying a thrust force on the lateral edges (2) in the longitudinal direction of the edges when in the guide channels (3) to move the screen towards the closed position;
- wherein the screen (1) is provided, at the lateral edges (2), with a series of separate substantially rigid link members which are incompressible along the longitudinal direction of the lateral edges (2), the rigid link members being able to bear against one another, in the longitudinal direction of the lateral edges (2), and the rigid link members being articulated with respect to each other in order to allow the screen (1) to be moved to an open position;
- wherein the rigid link members surround at least partially the lateral edges (2) of the screen (1), forming a protrusion with respect to a surface of the lateral edges (2) the protrusion being moveably held in the guide channels (3);
- wherein the lateral edges (2) of the screen (1) have a substantially continuous bead (7) around which are fixed the rigid link members;
- and
- wherein the continuous bead (7) of the lateral edges (2) encloses a hollow pipe (8) containing a fluid.
A closing device comprising a flexible screen (1) having lateral edges (2) guided in guide channels (3) to permit the screen (1) to be moveable between a closed position and an open position, wherein said edges (2) are substantially incompressible in a direction of movement of the screen towards the closed position in a longitudinal direction of said edges, and driving means for applying a thrust force on the lateral edges (2) in the longitudinal direction of the edges when in the guide channels (3) to move the screen towards the closed position;
- wherein the screen (1) is provided, at the lateral edges (2), with a series of separate substantially rigid link members which are incompressible along the longitudinal direction of the lateral edges (2), the rigid link members being able to bear against one another, in the longitudinal direction of the lateral edges (2), and the rigid link members being articulated with respect to each other in order to allow the screen (1) to be moved to an open position;
- wherein when the screen (1) is in an open position the screen is rolled up around an axis (17), and the guide channels extend around the axis (17) in a spiral (18) in a plane perpendicular to the axis, wherein in the open position, the lateral edges (2) of the screen (1) are held in the spiral guide channels (18);
- and
- wherein the rigid link members are fitted in the spiral guide channels (18) so that they can undergo an angular movement of at most 10.degree. about a central axis (25) of the spiral guide channels during their movement along the central axis.
A closing device comprising a flexible screen (1) having lateral edges (2) guided in guide channels (3) to permit the screen (1) to be moveable between a closed position and an open position, wherein said edges (2) are substantially incompressible in a direction of movement of the screen towards the closed position in a longitudinal direction of said edges, and driving means for applying a thrust force on the lateral edges (2) in the longitudinal direction of the edges when in the guide channels (3) to move the screen towards the closed position;
- wherein the screen (1) is provided, at the lateral edges (2), with a series of separate substantially rigid link members which are incompressible along the longitudinal direction of the lateral edges (2), the rigid link members being able to bear against one another, in the longitudinal direction of the lateral edges (2), and the rigid link members being articulated with respect to each other in order to allow the screen (1) to be moved to an open position;
- wherein when the screen (1) is in an open position the screen is rolled up around an axis (17), and the guide channels extend around the axis (17) in a spiral (18) in a plane perpendicular to the axis, wherein in the open position, the lateral edges (2) of the screen (1) are held in the spiral guide channels (18);
- wherein a radial distance between turns of the spiral guide channels (18), is such that, in the rolled up position, superimposed layers of the screen do not touch each other;
- and
- wherein the driving means comprises at least one telescopic arm (19) cooperating with an end of the lateral edges (2) of the screen (91) on a side of the axis (17).
A closing device comprising a flexible screen (1) having lateral edges (2) guided in guide channels (3) to permit the screen (1) to be moveable between a closed position and an open position, wherein said edges (2) are substantially incompressible in a direction of movement of the screen towards the closed position in a longitudinal direction of said edges, and driving means for applying a thrust force on the lateral edges (2) in the longitudinal direction of the edges when in the guide channels (3) to move the screen towards the closed position;
- wherein the screen (1) is provided, at the lateral edges (2), with a series of separate substantially rigid link members which are incompressible along the longitudinal direction of the lateral edges (2), the rigid link members being able to bear against one another, in the longitudinal direction of the lateral edges (2), and the rigid link members being articulated with respect to each other in order to allow the screen (1) to be moved to an open position;
- wherein the guide channels (3) further comprise two fixed portions (3a) and (3b) which prolong one another, a mobile guide connector (58) being interposed between the two fixed portions and being articulated on an edge of one openings with the portion (3a) located towards the open position of the screen, in order to pivot between a first position, in which the connector (58) extends in the prolongation of the two fixed portions (3a) and (3b) and a second position, in which the connector is orientated by an opposite opening outside the guide channels in order to allow reinsertion during the movement of the screen towards open position of the lateral edges (2) of the screen (1) when disengaged from a first portion (3b) of said two fixed portions, means (65) being provided to hold in and bring the connector (58) into said first position when the lateral edges (2) of the screen are moving in the guide channels and, allowing the connector to pivot towards said second position for the reinsertions of the edges (2) which might have become disengaged from the guide channels (3).
A closing device comprising a flexible screen (1) having lateral edges (2) guided in guide channels (3) to permit the screen (1) to be moveable between a closed position and an open position, wherein said edges (2) are substantially incompressible in a direction of movement of the screen towards the closed position in a longitudinal direction of said edges, and driving means for applying a thrust force on the lateral edges (2) in the longitudinal direction of the edges when in the guide channels (3) to move the screen towards the closed position;
- wherein the screen (1) is provided, at the lateral edges (2), with a series of separate substantially rigid link members which are incompressible along the longitudinal direction of the lateral edges (2), the rigid link members bearing against one another, in the longitudinal direction of the lateral edges (2), and the rigid link members being articulated with respect to teach other in order to allow the screen (1) to be moved to an open position;
- wherein said guide channels (3) are parallel and perpendicular to ground on which said guide channels are erected and the screen moves to the open position and the closed position within said guide channels.
Dependencies are inferred from the claim text.