Shutter device with guideways
The invention relates to a shutter device intended to close an opening, the shutter ( 1 ) being able to be moved downwards and upwards between an open position and a closed position, this shutter ( 1 ) having flexible or articulated roughly continuous lateral edges ( 8, 9 ) running with respect to guideways ( 10, 11 ) mounted on fixed supports ( 12 ) on each side of the opening, means being provided to allow a passage to be created between the guideways ( 10, 11 ) that is wider than the distance between the lateral edges ( 8, 9 ) of the shutter ( 1 ) when the latter is in the open position.
1. Shutter device intended to close an opening, the shutter device including flexible guideways ( 10 ), fixed supports ( 12 ) on which said flexible guideways ( 10 ) are mounted on each side of the opening, and a shutter ( 1 ) being able to be moved between an open position and a closed position, said shutter ( 1 ) having lateral edges ( 8 , 9 ) running in said flexible guideways ( 10 , 11 ), characterized in that elastic means are provided to connect the flexible guideways to the fixed supports such that the distance between the guideways ( 10 , 11 ) downstream of the lower edge ( 14 ) of the shutter ( 1 ) is greater than the width of the shutter ( 1 ) when the latter is in the open position, and such that, when the shutter is moved towards the closed position, the distance between the guideways ( 10 , 11 ) is gradually adapted to the width of the shutter ( 1 ) in a transition zone ( 18 ) along the guideways as the lateral edges ( 8 , 9 ) of the shutter ( 1 ) slide in the guideways ( 10 , 11 ), wherein at least the part of the guideways situated in the transition zone is flexible along the longitudinal direction of the guideways.
2. Device according to claim 1 , characterized in that the guideways ( 10 , 11 ) are mounted in an elastic manner with respect to the support ( 12 ) such that, in the open position of the shutter ( 1 ), the guideways ( 10 , 11 ) downstream of the lower edge ( 14 ) of the shutter ( 1 ) are in a close-up position ( 16 ) with respect to the support ( 12 ), and such that, in the closed position of the shutter ( 1 ), the guideways ( 10 , 11 ) are in a separated position ( 17 ) with respect to the support ( 12 ), and such that the guideways ( 10 , 11 ) are moving gradually towards said separated position ( 17 ) during movement of the shutter ( 1 ) towards the closed position.
3. Device according to claim 1 , characterized in that the guideways ( 10 , 11 ) are flexible, at least in their upstream part ( 15 ) with respect to the lower edge ( 14 ) of the shutter ( 1 ) when the latter is in the open position.
4. Device according to claim 1 , characterized in that the guideways ( 10 , 11 ) are mounted so as to be able to move with respect to the fixed supports ( 12 ).
5. Device according to claim 1 , characterized in that the guideways ( 10 , 11 ) are mounted elastically on the fixed supports ( 12 ).
6. Device according to claim 1 , characterized in that the guideways ( 10 , 11 ) are articulated with respect to the fixed supports ( 12 ).
7. Device according to claim 6 , characterized in that the guideways ( 10 , 11 ) are provided with at least one arm ( 13 ) extending between the supports ( 12 ) and the guideways ( 10 , 11 ), this arm ( 13 ) being articulated with respect to the supports ( 12 ) so that it can be folded down.
8. Device according to claim 1 , characterized in that the guideways ( 10 , 11 ) are provided with a flexible strip ( 13 ) extending between the supports ( 12 ) and the guideways ( 10 , 11 ) over substantially the entire length of the guideways ( 10 , 11 ).
9. Device according to claim 1 , characterized in that a pulling member is provided between the supports ( 12 ) and the guideways ( 10 , 11 ) allowing the guideways ( 10 , 11 ) to be folded down or brought closer to the supports ( 12 ).
10. Device according to claim 1 , characterized in that the shutter ( 1 ) comprises at least one strip of elastic material extending continuously or discontinuously along the entire length of the shutter ( 1 ).
11. Device according to claim 1 , characterized in that the shutter ( 1 ) consists of a continuous tarpaulin comprising a roughly elastic region which extends near to at least one lateral edge ( 8 , 9 ) of the shutter ( 1 ).
12. Device according to claim 1 , characterized in that practically the entire shutter ( 1 ) is made of a roughly elastic material.
13. Device according to claim 1 , characterized in that the ends ( 15 ) of the guideways ( 10 , 11 ) upstream of the lower edge of the shutter ( 1 ), when the latter is in the open position, are mounted a fixed distance apart which corresponds substantially to the width of the shutter ( 1 ).
14. Device according to claim 2 , characterized in that the guideways ( 10 , 11 ) are flexible, at least in their downstream part ( 16 ) with respect to the lower edge ( 14 ) of the shutter ( 1 ) when the latter is in the open position.
15. Device according to claim 2 , characterized in that the guideways ( 10 , 11 ) are mounted so as to be able to move with respect to the fixed supports ( 12 ).
16. Device according to claim 3 , characterized in that the guideways ( 10 , 11 ) are mounted so as to be able to move with respect to the fixed supports ( 12 ).
17. Device according to claim 14 , characterized in that the guideways ( 10 , 11 ) are mounted so as to be able to move with respect to the fixed supports ( 12 ).
18. Device according to claim 2 , characterized in that the guideways ( 10 , 11 ) are mounted elastically on the fixed supports ( 12 ).
19. Device according to claim 3 , characterized in that the guideways ( 10 , 11 ) are mounted elastically on the fixed supports ( 12 ).
20. Device according to claim 14 , characterized in that the guideways ( 10 , 11 ) are mounted elastically on the fixed supports ( 12 ).