EP1492934A1

EP1492934A1 - Door assembly

Info

Publication number: EP1492934A1
Application number: EP03711725A
Authority: EP
Inventors: Benoit Coenraets
Original assignee: Dynaco International SA
Current assignee: Entrematic Belgium NV
Priority date: 2002-04-10
Filing date: 2003-04-03
Publication date: 2005-01-05
Anticipated expiration: 2023-04-03
Also published as: DE60332928D1; ATE470781T1; BR0309151A; KR20050006142A; IL164307A0; US7699088B2; CA2480699A1; ES2346302T3; PL371762A1; NZ535814A; UA79608C2; JP2005527720A; TW200306379A; TWI276732B; AR039626A1; CN100449107C; EP1492934B1; PT1492934E; US20050252619A1; RU2004133030A

Abstract

The invention concerns a door assembly for closing an opening (3) in a wall (4), comprising a first flexible door (17) and a second door (2) having at least a rigid lower edge (17), each of said doors (1, 2) being capable of being subjected to a rising movement and a lowering movement respectively between an opening position and a closing position, the second door (2) being designed to create a slot (31) between the wall (4) and the rigid lower edge (17) of said second door (2) during its rising movement towards the opening position. The flexible door (1) is arranged at least partly between said second door (2) and said wall (4) and can move through said slot (31) between its closing position and its opening position when the second door (2) is in the opening position.

Description

DOOR ASSEMBLY

The invention relates to a set of doors for closing a bay in a wall, comprising a first flexible door and a second door having a rigid lower edge, each of these doors being able to be subjected to an upward movement and a movement descending respectively between an open position and a closed position, the second door being arranged so that the lower edge moves away from the wall during its upward movement towards the open position by creating a slit between the wall and the lower edge of this second door.

Said second door is, for example, formed by a sectional door which consists of a succession of rigid sections hinged with respect to each other. When this second door is in its closed position, the sections and the lower edge of the door fit against the wall, while in the open position a slit is created between the part of the wall located above the bay and the bottom edge of the door.

The sets of doors currently known have a relatively bulky and complex construction. Furthermore, these known sets of doors do not make it possible to obtain a sealed closure when the flexible door is in the closed position and said second door is in the open position. In particular, spaces are present through which insects, a draft or dust can enter the enclosure closed by this set of doors. Thus, it is relatively complicated to produce a set of doors which has a satisfactory seal. Document US 2,501,454 describes a set of two doors which are each wound on a drum in order to allow their opening. We tried to achieve a seal between the wall and all of these doors by mounting a housing above the bay in which said drums are enclosed. It is clear that the mounting of such a housing is relatively complex and that it is not possible to use such a housing when one of these doors is not wound around a drum. This could, for example, be the case when the second door consists of a rigid door or a sectional door.

One of the essential aims of the present invention is to present a set of doors which are relatively compact and of very simple construction. In addition, this set of doors makes it possible to obtain complete sealing in a very efficient and simple manner when one of the doors of this set is closed.

To this end, according to the invention, the flexible door is arranged at least partially between said second door and the aforementioned wall, this flexible door being able to move through said slot between its closed position and its open position when the second door is in the open position.

According to a particular embodiment of the set of doors, according to the invention, when said second door is in the open position while said flexible door is moved towards its closed position or towards its open position, this the latter is supported, during its movement, against a guide surface provided on the wall above the opening and / or on the lower edge of the second door.

According to a specific embodiment of the invention, the flexible door comprises a flap, the lateral edges of which are guided with respect to guide paths passing through said slot between the wall and the lower edge of the second door.

Advantageously, when said second door is in the open position while said flexible door is in its closed position, the latter, on the one hand, is in contact with the wall above the opening in providing a seal between this wall and the flexible door and, on the other hand, bears against the lower edge of the second door in order to maintain said contact and, therefore, to ensure the aforementioned seal. Interestingly, the guide tracks form a seal between the wall and said second door when the latter is in the closed position.

According to an advantageous embodiment of the set of doors, according to the invention, the lower edge of the second door is provided with a guide surface allowing the sliding shutter door to slide on this edge during the upward movement or descending from the shutter.

Advantageously, the wall located above the opening is provided with a guide surface allowing the sliding shutter door to slide relative to this wall during the upward or downward movement of the shutter.

According to a very interesting embodiment of the set of doors, according to the invention, the flexible shutter door is provided with a sealing element extending over substantially the entire width of the flexible door which, in the position for closing the flexible door, extends between this door and the wall located above the opening by making a tight seal between this wall and this door.

Interestingly, the flexible door is provided with a sealing element extending over substantially the entire width of the flexible door which, in the closed position of the flexible door, extends between this door and the lower edge of the second door, so that the flexible door is clamped between the wall and this lower edge.

Other details and particularities of the invention will emerge from the description given below, by way of nonlimiting example, of some particular embodiments of a set of doors, according to the invention, with reference to the drawings. attached. Figure 1 is a schematic section of a set of doors, according to a first embodiment of the invention, with a sectional door in the closed position and a flexible door in the open position.

Figure 2 is a section along line II-II of Figure 1. Figure 3 is a section similar to that of Figure 1 when the sectional door is in the open position and the flexible door is in the position closing. Figure 4 is a schematic section of a set of doors, according to a second embodiment of the invention, with a sectional door in the closed position and a flexible door in the open position.

Figure 5 is a section similar to that of Figure 4 when the sectional door is in the open position and the flexible door is in the closed position.

FIG. 6 is a schematic section, on a larger scale, along line VI-VI of FIG. 4.

FIG. 7 is a diagrammatic section, on a larger scale, along line VII-VII of FIG. 5.

Figure 8 is a schematic section similar to that of Figures 6 and 7, when the flexible door and the sectional door are in the open position.

Figure 9 is a detail of the part above the bay of the door assembly of Figure 4. Figure 10 is a detail of the part above the bay of the door assembly of Figure 5.

Figure 11 is a detail of the part above the bay of the door assembly according to the embodiment of the invention of Figures 4 to 10, when the flexible door and the sectional door are in the open position . Figure 12 is a detail of the part above the bay of the set of doors when the flexible door is provided with a flap and is in the closed position.

Figure 13 is a detail of the part above the bay of the set of doors when the flexible door is provided with a thickening and is in the closed position.

Figure 14 is a very schematic front view of the set of doors according to the second embodiment of the invention.

Figure 15 is a schematic section of a set of doors, according to another embodiment of the invention, with a sectional door in the closed position and a flexible door in the open position.

Figure 16 is a section along line XVI-XVI of Figure 15.

Figure 17 is a section along line XVII-XVII of Figure 15. Figure 18 is a schematic section of the door assembly of Figures 15 to 17, when the sectional door is in the open position and the flexible door is in the closed position.

Figure 19 is a section along the line XIX-XIX of Figure 18. Figure 20 is a schematic section of a set of doors according to the invention, comprising a tilting door and a flexible door.

In the various figures, the same reference numerals relate to the same or similar elements.

In general, the present invention relates to a set of doors for closing a bay in a wall. This set of doors comprises a first flexible door and a second door which are arranged one behind the other in order to be able to close the opening with one of these doors, when the other door is open.

The use of such a set of doors is particularly advantageous when said second door is formed by a rigid door whose movement between the closed position and the open position is relatively slow. If there is a passage of people or traffic with a relatively high frequency through this bay, the opening or closing of this rigid door causes a considerable loss of time when we have to wait for the opening of this rigid door. The presence of a flexible door, which can be closed or opened at high speed, overcomes this drawback. Thus, the rigid door is put in its open position when a passage with a relatively high frequency is expected and this door is put in the closed position overnight when no passage is expected.

The use of a flexible door has the additional advantage that such a door requires only a very limited space for its assembly.

Advantageously, the flexible door comprises a flap whose lateral edges preferably cooperate with guide paths provided on either side of the opening, so that the opening can be closed by this flap. By the word "shutter", it is necessary to understand, within the framework of the present invention, any flat element of reduced thickness, at least partially flexible, flexible, possibly with one or more transverse stiffeners, such as a sheet , a mosquito net or other insects, a plastic strip, a canvas, a grid or a metal sheet, etc. ...

It should, however, be noted that a pronounced preference is given to flexible shutters formed, for example, by a tarpaulin. Thus, the figures relate to a flap consisting of a sheet whose lateral edges are, for example, provided with a bead or a succession of small rigid blocks articulated relative to one another.

FIGS. 1 to 3 represent a first embodiment of the set of doors, according to the invention, comprising a flexible door 1 and a rigid door 2 which can close a bay 3 in a wall 4.

The flexible door 1 comprises a flap 9 and two guide paths 5 and 6, extending on either side of the opening 3, in which the lateral edges 7 and 8 of the flap 9 are guided when this flap 9 is moved between a closed position and an open position. At a level above the opening 3 is provided a drum 10 around which the flap 9 is wound during its movement towards the open position or from which it is unwound during its movement towards the closed position. Advantageously, drive means are provided for this purpose, not shown in the figures.

The guide tracks 5 and 6 are preferably mounted resiliently with respect to the wall 4, so that, when the flap 9 is moved to the closed position, these guide tracks 5 and 6 are approached automatically towards each other ensuring that the distance between them corresponds to the width of the flap 9. When the flexible door 1 is open and the flap 9 is, therefore, wound on the drum 10, the guide tracks 5 and 6 are moved back and apart from each other automatically, as a result of their elastic mounting, so as not to be in the opening 3. The rigid door 2, which is formed by a sectional door comprising a succession of sections 11 which are articulated with respect to each other, extends mainly along the flexible door 1 in such a way that the latter is arranged between, on the one hand, this rigid door 2 and, on the other hand, bay 3 and wall 4. At the place where the sects ions 11 are articulated relative to each other rollers 12 are provided which are guided in corresponding guide paths 13 and 14. These guide paths 13 and 14 extend substantially vertically on either side of the bay 3 and are curved at the location of the upper part of the bay 3, then extending transversely relative to the wall 4.

The guide paths 5 and 6 of the flexible door 1 are arranged between the guide paths 13 and 14 of the rigid door 2 and the wall 4. In this way, the guide paths 5 and 6 of the flexible door 1 form a seal between the wall 4 and the rigid door 2 when the latter is in the closed position, as shown diagrammatically in FIG. 2. In particular, the lateral edges of the sections 11 are supported, in the closed position of the rigid door, against the guide tracks 5 and 6 of the flexible door 1, preferably by somewhat compressing these guide tracks 5 and 6 which are made of a slightly elastic material.

When the flexible door 1 is in the open position, the lower edge 16 of the flap 9 is located above the opening 3 between the upper section 11 of the rigid door 2 and the wall 4, thus providing a seal between the rigid door and the wall 4 located above the opening 3. The lower edge 16 of the flap 1 is, in particular, clamped between the wall 4 and the corresponding section 11 of the rigid door when the latter is in its closed position . For this reason, the lower edge 16 of the shutter 1 preferably comprises an elastic bead extending along substantially the entire width of the shutter 1. When the rigid door 2 is opened, the lower edge 17 of this door departs somewhat from the wall 4 so that the flap 9 of the flexible door can easily move through the slot 31 which is thus created between the wall 4 and the lower edge 17 of the rigid door 2. This slot 31 is not therefore present only when the rigid door 2 is open and is not present when this door is closed. When the rigid door 2 is in the open position and the flexible door 1 is in the closed position, it is important that the latter can close the opening 3 in a sealed manner. To this end, the part of the flap 1 extending at the location of the lower edge 17 of the rigid door, when the latter is in the open position, can bear against this lower edge 17. In this way, it a space is avoided between the shutter 9 and the wall 4 above the opening 3. Such a space could for example occur when, under the effect of a draft or a slight pressure, the flap 9 is moved away from the wall 4 above the opening 3. In order to ensure permanent contact between the flap 9 and the wall 4 situated above the opening 3, when the flexible door is in the closed position, a guide surface is advantageously provided. on this wall 4 extending over substantially the entire width of the flap 1. This guide surface is, for example, formed by a thickening 18 which is provided at the location above the opening 3 where the flap 1 comes in contact with the wall 4. Thus, this thickening ensures, on the one hand, a sliding with a minimum of friction of the shutter 9 when the shutter is closed or opened and, on the other hand, the seal between the shutter 9 and the wall 4.

Similarly, a guide surface can be provided on the lower edge 17 of the rigid door 2 in order to allow the flap 9 to slide on this lower edge 17 during the downward or upward movement of the flap 9.

Figures 4 to 11 show a second embodiment of the set of doors, according to the invention, with a conventional sectional door and a flexible door 1, in which the guide tracks 5 and 6 of the latter are fixed in the rack 3. This is illustrated in Figures 6, 7 and 8.

The guide paths 5 and 6 of the flexible door include, in particular, a profile having two parallel wings linked together in their longitudinal direction by a central crosspiece, this profile thus having an H-shaped section. The edges of a wings are folded towards the edges opposite the other wing, so that two channels 19 and 20 are formed. In one of these channels 19 the corresponding edge 7 or 8 of the flap 9 can move when the flexible door 1 is closed or opened, while in the other channel 20 is fixed a mounting strip 21.

This mounting strip 21 is fixed in the bay 3 on the wall 4. As shown in the figures, the mounting strip 21 is provided with lateral edges 22 and 23 having a thickness which is greater than that of the part of the strip 21 located between these edges 22 and 23. The mounting strip 21 is fixed at the location of an edge 23 on the wall in the bay 3 by means of a fixing strip 24 so that the mounting strip 21 is tightened between the fixing strip 24 and the wall 4. The other edge 22 of the mounting strip 21 is held in the corresponding channel 20 of the above profile. The mounting strip 21 is made of a flexible and preferably elastic material, such as an elastomer, polypropylene or polyurethane. The above profile is preferably made of a relatively material flexible, so that this profile can bend and twist somewhat and maintain uniform tension of the flap.

When the flexible door 1 and the rigid door 2 are open, as shown in FIG. 8, the mounting strip 21 is elongated so that it is located outside the opening 3.

During the closing of the flexible door 1 by the downward movement of the flap 9, the width of which is less than the width of the opening 3, the profiles on the two sides of the opening 3 are gradually approached towards each other by arrow the corresponding mounting strips 21. This is illustrated in Figure 7. Since the mounting strips 21 tend to elongate, the flap 9 always remains substantially taut when the latter is in the closed position.

When the flexible door 1 is opened by the upward movement of the flap 9, the mounting strips 21 gradually return to their elongated position, as shown in FIG. 8. When the flexible door 1 is open and the rigid door is in the closed position, as illustrated in FIG. 6, the mounting strip 21 is bent and bears, with the above-mentioned profile, against the surface of the sections 11 of the rigid door 2. The mounting strip 21 and this profile thus form a seal between the wall 4 and the rigid door 2. Figures 5 and 10 show the set of doors according to the invention, with the rigid door in the open position and the flexible door in the closed position. The lower edge 17 of the rigid door 2 is provided with a guide surface formed by a cylinder 25, which can optionally undergo rotation around its axis, which extends along this lower edge 17 over a distance substantially corresponding to the width of the flap 9. Interestingly, this cylinder 25 is formed by a succession of coaxial rollers. This guide surface allows the flap 9 to slide with a minimum of friction against this lower edge 17 of the rigid door 2 during the movement of the flap 9 towards the closed position or the open position thereof. In addition, the flap 9 bears against this guide surface, or in particular against the cylinder 25, when it is closed, avoiding that a space could form between flap 9 and the part of the wall 4 situated above above the bay 3. This part of the wall 4 located above the opening 3 is also provided with a guide surface formed by a cylinder 25 on which the flap 9 can slide during its movement towards the closed or open position.

In order to ensure that a tight seal is produced between the shutter 9 and, on the one hand, the lower edge 17 of the rigid door 2 and, on the other hand, the wall 4 located above the opening 3 , the flap 9 is provided with a sealing element 26. This sealing element 26 extends over substantially the entire width of the flap 9 at the location of the latter opposite the lower edge 17 of the rigid door 2 when the latter is in its open position and the flexible door 1 is in the closed position. Thus, this sealing element 26 is clamped between the lower edge 17 of the rigid door and the part of the wall 4 above the opening 3 and in this way achieves the desired sealing.

The sealing element 26 can be formed by a compressible flap 27, as shown very schematically in FIG. 12. This flap 27 is flattened when the flap 9 is wound on the drum 10 in order to open the opening 3 and straightens when the shutter is unwound from the drum 10 towards its closed position.

In Figure 13 an alternative embodiment of the sealing member 26 is shown. The sealing element comprises, in particular, a bead 28 of an elastic material which is clamped between the wall and the lower edge of the second door when the latter is in the open position while said flexible door is in its closed position.

In order to be able to move the flap 9 in an upward and downward movement, drive means are provided comprising a toothed wheel 29 which cooperates with a rack 30 extending along the lateral edge of the flap 9, as shown very schematically in the Figure 7. The toothed wheel 29 is located above the guide tracks 13 and 14 of the rigid door 2 and is controlled by an electric motor, not shown.

The guide tracks 5 and 6 of the flexible door 1 extend as close as possible to this toothed wheel 29. Since the width of the flap 9 is less than the distance between the guide paths 5 and 6 by which the flap 9 is guided, these guide paths 5 and 6 are somewhat twisted in the area between the opening 3 and the toothed wheel 29 when the flexible door 1 and the rigid door 2 are in their position opening. The lower part of the flap 9 and the lower edge 16 are always held in the guide paths 5 and 6. This is shown schematically in Figures 11 and 14. Figure 14 shows, in particular, the path of the guide paths of the flexible door 1 by a line of dots and dashes, while bay 3 is indicated by a line of dashes.

When the flexible door 1 is opened, the shutter 1 can be wound around a drum or the shutter 9 can be extended above the horizontal part of the guide tracks 13 and 14 of the rigid door, as illustrated very diagrammatically in FIGS. 4 to 11. In a very interesting manner, the set of doors, according to the invention, can be produced from an existing door having at least one rigid lower edge. For example, when a sectional door is provided in front of a bay, it is possible to mount a flexible door between this existing door and the wall. In particular, when the sectional door is subjected to an upward movement towards its open position, this sectional door moves away from the wall, thus creating, in its open position, a slot between the wall above the opening and the bottom edge of the door. This slot generally has a width of the order of 1 to 4 cm.

The set of doors according to the invention is then produced by mounting two guide tracks for the flexible door on either side of the opening extending through said slot between the lower edge of the sectional door. and the part of the wall located above the bay. A drum for winding a shutter is, for example, fixed on the wall above the opening so that the shutter can be moved through said slot between a closed position and an open position when the sectional door is in the open position. In this way a flexible door is mounted which cooperates with the sectional door while maintaining the original height of the passage present below the sectional door, when the latter is its open position.

In Figures 15 to 19 such a set of doors is shown. As illustrated in FIGS. 15 and 16, when the sectional door 2 is in the closed position, it extends against the wall 4 around the opening 3 by providing a seal between this wall 4 and the sectional door 2. During the upward movement of sectional door 2 to the open position, sections 11 of this door gradually move away from the wall 4. Thus, as explained above, a slot 31 is created between the wall 4 and the lower edge 17 in the open position of the sectional door, as shown in FIGS. 17 and 18.

The flexible door 1, comprising a flap 9 formed by a cover, is mounted between the sectional door 2 and the wall 4 so that the guide tracks 5 and 6 of the flexible door 1 extend through said slot 31 and that during the upward or downward movement of the shutter 9 between its closed position and its open position, the latter is moved through the slot 31.

In the embodiment of the invention shown in FIGS. 15 to 19, the guide tracks 5 and 6 of the flexible door 1 are mounted in a manner analogous to that described for FIGS. 4 to 11.

When the sectional door 2 is in its closed position, the upper section 11 'of this door is slightly inclined relative to the wall 4. Thus a space is formed between the wall 4 and this upper section 11' through which s extend the guide tracks 5 and 6 of the flexible door 1.

At the upper edge 33 of the upper section 11 'a flexible joint 32 is provided extending along this section 11' between the latter and the wall 4 when the sectional door 2 is in its open position. When the sectional door 2 is closed, this seal is elastically deformed at the point where the guide tracks 5 and 6 of the flexible door 1 pass through the space between the wall 4 and the sectional door 2, as shown schematically in Figure 17. In this way, a seal is obtained between the upper section 11 'of the sectional door 2 and the wall 4 notwithstanding that the guide tracks 5 and 6 of the flexible door 1 are arranged between this section 11 'and the wall 4. It is clear that it is not necessary for the upper section 11' to be inclined relative to the wall 4 in the closed position of the sectional door 2. It is possible, for example , provide a cutout in this upper section 11 'or in the wall 4 at the location of the guide tracks 5 and 6 of the flexible door 1 in which the latter are housed when the sectional door 2 is in its closed position. By the fact that the slot 31 is used between the wall 4 and the lower edge

17 of the sectional door 2 as a guide for the flap 9 of the flexible door 1, the drive means, comprising a drum 10, for the flexible door 1 can be mounted above the sectional door 2. In this way, the original height of the passage in the bay 3 below the sectional door 2 is not reduced by the mounting of a flexible door, according to the invention .

Figure 20 shows another embodiment of a set of doors according to the invention. This set of doors comprises a flexible door 1 and a rigid door 2 consisting, in particular, of a conventional tilting door, for example, used to close a garage. When this rigid door 2 is closed, it fits in a sealed manner to the wall 4 in the opening 3, while in the open position of this rigid door 2, as shown in FIG. 20, a slot 31 is present between the rigid lower edge 17 of the latter and the part of the wall 4 situated above the opening 3.

Guide tracks 5 and 6 are fixed in the bay 3 and extend through said slot 31. When the flap 9 of the flexible door 1 is moved between the open position and the closed position, the latter takes bearing against the lower edge 17 of the rigid door 2 and against the wall 4 above the opening 3. Thus, the flap 9 is guided through the slot 31.

In an alternative embodiment of the set of doors, according to the invention, a flexible sealing flap is provided which is fixed along the rigid lower edge 17 of the second door 2. When the second door is in the open position, this flap seals the slot 31 between the rigid lower edge 17 and the wall 4. During the downward movement of the flap 9 of the flexible door 1 towards its closed position, this flap undergoes bending by the action of the lower edge 16 of the flap 9, so that the latter is guided between the wall 4 and the flap.

When the second door is in the closed position, the flap seals between the lower edge 17 of this door and the floor.

It is understood that the invention is not limited to the embodiments described above and shown in the accompanying drawings, but that many other variants can be envisaged without departing from the scope of the present invention. Thus, it is possible that the aforementioned profile and the mounting strip 21 form a whole.

Although the embodiments described all relate to a set of doors with a first flexible door and a second door which is formed by a sectional door or a tilting door, it is clear that this second door can be constituted by any door which is provided with a rigid or semi-rigid lower edge. In particular, this second door could, for example, be formed by a flexible door with a rigid lower edge.

In certain cases the guide path 5 or 6 of the flexible door can be formed by a bead around which the corresponding lateral edge 7 or 8 of the flap 9 fits.

Claims

1. Set of doors for closing a bay (3) in a wall (4), comprising a first flexible door (1) and a second door (2) having at least one rigid lower edge (17), each of these doors (1,2) being able to be subjected to an upward movement and a downward movement respectively between an open position and a closed position, the second door (2) being arranged so as to create a slot (31) between the wall (4) and the rigid lower edge (17) of this second door (2) during its upward movement towards the open position, the flexible door (1) being arranged at least partially between said second door (2) and the above-mentioned wall (4), this flexible door (1) being able to move through said slot (31) between its open position and its closed position when the second door (2) is in the open position, characterized in that, when said second door (2) is in the positi opening while said flexible door (1) is in its closed position, the latter bears against the lower edge (17) of the second door (2).

2. Assembly according to claim 1, characterized in that when said second door (2) is in the open position while said flexible door (1) is in its closed position, the latter, on the one hand, is in contact with the wall (4) above the opening (3) by providing a seal between this wall (4) and the flexible door (1) and, on the other hand, bears against the lower edge (17) of the second door (2) in order to maintain said contact and, therefore, to ensure the aforementioned seal

3. Assembly according to claim 1 or 2, characterized in that the flexible door (1) is provided with a sealing element (26) extending over substantially the entire width of the flexible door (1) which, in the closed position of the flexible door (1) extends between this door (1) and the wall (4) located above the opening (3) by making a tight seal between this wall (4) and this door (1).

4. Assembly according to any one of claims 1 to 3, characterized in that it comprises a sealing element (26) extending over substantially the entire width of the flexible door (1) which, in the position of closing of the latter, extends between this door (1) and the lower edge (17) of the second door (2), so that the flexible door (1) is clamped between the wall (4) and this edge lower (17).

5. An assembly according to claim 3 or 4, characterized in that the sealing element (26) comprises a flap (27) extending, in the closed position of the flexible door (1), between the wall ( 4) and the flexible door (1).

6. Assembly according to claim 3 or 4, characterized in that the sealing element (26) comprises a thickening (28) in an elastic material which is clamped between the wall (4) and the lower edge (17) of the second door (2) when the latter is in the open position while said flexible door (1) is in its closed position.

7. Assembly according to any one of claims 1 to 6, characterized in that, when said second door (2) is in the open position while said flexible door (1) is moved towards its closed position or towards in its open position, the latter bears, during its movement, against a guide surface provided on the wall (4) above the opening (3) and / or at the lower edge (17) of the second door (2).

8. An assembly according to claim 7, characterized in that the lower edge (17) of the second door (2) is provided with said guide surface (25) allowing the sliding of the flexible door (2) on this edge (17 ) during the upward or downward movement of the latter.

9. An assembly according to claim 7 or 8, characterized in that the wall (4) located above the opening (3) is provided with said guide surface (25) allowing the sliding of the flexible door (1) by relative to this wall (4) during the upward or downward movement of the latter.

10. The assembly of claim 8 or 9, characterized in that the guide surface comprises at least one cylinder (25) whose axis extends substantially transversely to the direction of movement of the flexible door (1) during its downward or upward movement.

11. Assembly according to any one of claims 1 to 10, characterized in that the flexible door (1) comprises a flap (9) whose lateral edges (7,8) are guided relative to guide paths (5 , 6) passing through said slot between the wall (4) and the lower edge (17) of the second door (2).

12. The assembly of claim 11, characterized in that said guide paths (5,6) extend at least partially in the bay (3) or on the side of the latter opposite to that oriented towards the second door (2) .

13. An assembly according to claim 11 or 12, characterized in that the guide tracks (5,6) are mounted in an elastic manner and / or pivotally relative to the wall (4).

14. An assembly according to any one of claims 11 to 13, characterized in that the guide tracks (5,6) constitute seals between the wall (4) and said second door (2) when the latter is in the closed position.

15. Set of doors for closing a bay (3) in a wall (4), comprising a first flexible door (1) and a second door (2) having at least one rigid lower edge (17), each of these doors (1,2) being able to be subjected to an upward movement and a downward movement respectively between an open position and a closed position, the second door (2) being arranged so as to create a slot (31) between the wall (4) and the rigid lower edge (17) of this second door (2) during its upward movement towards the open position, the flexible door (1) being arranged at least partially between said second door (2) and the above-mentioned wall (4), this flexible door (1) being able to move through said slot (31) between its closed position and its open position when the second door (2) is in the open position, characterized in that when said second door (2) is in the positi on opening while said flexible door (1) is moved to its closed position or to its open position, the latter bears, during its movement, against a guide surface provided on the wall (4) at above the opening (3) and / or at the lower edge (17) of the second door (2).

16. Assembly according to claim 15, characterized in that the lower edge (17) of the second door (2) is provided with said guide surface (25) allowing the flexible door (2) to slide on this edge (17) during the upward or downward movement of the latter.

17. An assembly according to claims 15 or 16, characterized in that the wall (4) located above the opening (3) is provided with said guide surface (25) allowing the sliding of the flexible door (1) by relative to this wall (4) during the upward or downward movement of the latter.