EP1488068A1 - Shutter device with flexible lateral edges - Google Patents

Shutter device with flexible lateral edges

Info

Publication number
EP1488068A1
EP1488068A1 EP03707933A EP03707933A EP1488068A1 EP 1488068 A1 EP1488068 A1 EP 1488068A1 EP 03707933 A EP03707933 A EP 03707933A EP 03707933 A EP03707933 A EP 03707933A EP 1488068 A1 EP1488068 A1 EP 1488068A1
Authority
EP
European Patent Office
Prior art keywords
edges
reintroduction
shutter
reintroduction element
flap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03707933A
Other languages
German (de)
French (fr)
Other versions
EP1488068B1 (en
Inventor
Benoit Coenraets
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Entrematic Belgium NV
Original Assignee
Dynaco International SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dynaco International SA filed Critical Dynaco International SA
Publication of EP1488068A1 publication Critical patent/EP1488068A1/en
Application granted granted Critical
Publication of EP1488068B1 publication Critical patent/EP1488068B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • E06B9/581—Means to prevent or induce disengagement of shutter from side rails
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • E06B2009/585—Emergency release to prevent damage of shutter or guiding device

Definitions

  • the invention relates to a shutter device intended for closing a bay or other opening, the shutter having flexible edges projecting from the plane of the shutter and cooperating with guide tracks, at least one reintroduction element being provided for reintroducing said edges into the guideways when these edges are released from the latter under the action of a force exerted on these edges in a direction transverse to the guideways, a contact surface being formed during this reintroduction between the reintroduction element and the corresponding edge.
  • the invention relates, in particular, to a shutter device the lateral edges of the shutter of which can be released from the guideways, for example, when an obstacle is located between the guideways when the shutter is closed or when a vehicle collides with the flap.
  • the reintroduction element provided at the location of the upper part of the guide tracks makes it possible to reintroduce the lateral edges of the flap in the guide tracks during its upward movement.
  • One of the essential aims of the present invention is to provide a shutter device, the lateral edges and the reintroduction element of which cannot be damaged when a force greater than a predetermined force is exerted on these edges of the shutter during the upward movement. of the last.
  • the reintroduction element and the projecting edge cooperate with each other in such a way that, as soon as the force exerted on the edge in a direction transverse to the paths of guides, exceeds a determined value, the contact surface between the reintroduction element and the edge correspondent undergoes a displacement relative to a longitudinal axis of the projecting edge, located at a certain distance from the contact surface, allowing the clearance of the edge relative to the reintroduction element.
  • said edges of the flap are made of a flexible and deformable material with shape memory so that these edges return to their original shape after a deformation under the effect of the aforementioned displacement of the contact surface.
  • edges are made of an elastomeric material. These edges have, in particular, a Shore A hardness between 65 ° and 100 ° and are preferably made, at least partially, of polyurethane.
  • the hardness of the edges is chosen in such a way that, when a tensile force transverse to the longitudinal direction of the guide tracks is exerted on said edges, these edges are released from their corresponding guide path without being considerably deformed, while, when this force exceeds a certain value, these edges temporarily deform further in order to be able to disengage from the reintroduction element.
  • the reintroduction element is mounted in an elastic manner on a support so that, when said tensile force exceeds the determined value mentioned above, the reintroduction element is temporarily moved under the action of the corresponding edge in order to allow the latter to be released relative to the reintroduction element.
  • the reintroduction element is made of a deformable material with shape memory so that, when said tensile force exceeds the determined value mentioned above, the reintroduction element is deformed under the action of the corresponding edge when the latter emerges relative to the reintroduction element.
  • Figure 1 is a schematic view in vertical section of a first embodiment of a shutter device according to the invention with the shutter in the closed position.
  • Figure 2 is a view similar to that of Figure 1 with the flap in its open position.
  • Figure 3 is a front view of the shutter device in the open position.
  • Figure 4 is, on a larger scale, a front schematic representation of the reintroduction element according to a first embodiment of the shutter device according to the invention.
  • Figure 5 is a section along the line V-V in Figure 4.
  • Figure 6 is a section along line VI-VI of Figure 4.
  • Figure 7 is a perspective view of the reintroduction member of Figure 4 with a side edge of the flap.
  • Figures 8 to 11 show sections along line VI-VI of Figure 4 with different successive steps during the release of the side edge of the flap relative to the reintroduction element.
  • Figure 12 is a side view of the reintroduction element according to a second embodiment of the invention.
  • FIG. 13 is an exploded perspective view of the reintroduction element of FIG. 12.
  • Figure 14 is a schematic perspective representation of the reintroduction element of Figure 12 during the reintroduction of the side edge of the flap in the corresponding guide path.
  • the same reference numerals relate to the same or similar elements.
  • the present invention relates to a shutter device cooperating with drive means, such as a drum whose axis is connected to the shaft of an electric motor.
  • the shutter moves in a downward and upward movement between, respectively, a closed position and an open position, and is intended for closing a bay in a wall or passage, such as a corridor.
  • any planar element at least partially flexible or flexible such as a tarpaulin, a strip of plastic material, a wire fabric, a trellis , a metal sheet, a sectional door, etc. It should, however, be noted that a pronounced preference is given to flexible shutters formed, for example, by a tarpaulin. The attached figures therefore relate more particularly to such a tarpaulin.
  • the shutter device is shown schematically in the closed position, while in Figures 2 and 3 the shutter device is shown in the open position.
  • This device comprises a flap 1 with lateral edges 2 and 3 projecting from the plane of the flap which are advantageously formed by a continuous bead or by a succession of small blocks articulated relative to each other moving in paths guide 4 and 5.
  • Guide paths 4 and 5 are provided on either side of a bay 6 which is present in a wall 7.
  • a drum 8 on which the flap 1 can be rolled up.
  • Drive means 9 such as an electric motor, actuate a shaft 10 which extends along the axis of the drum 8 so as to be able to wind the shutter 1 on the drum 8 to bring it into the open position or to be able to unwind it towards its closed position.
  • the guide tracks 4 and 5 comprise, at the place of their upper part 11, a reintroduction element 12.
  • This reintroduction element 12 makes it possible to reintroduce the lateral edges 2 and 3 into the guide tracks 4 and 5 during the opening of the flap 1 when these are released from the lower part 13 of the guide tracks 4 and 5 in below the reintroduction element 12.
  • the lateral edges 2 and 3 can be released, for example, when an obstacle is located between the guide tracks 4 and 5 when the shutter 1 is closed or when, for example, a vehicle collides with flap 1.
  • the guide paths 4 and 5 have a U-shaped section with two wings 19 and 20.
  • the edges of these wings 19 and 20 are folded towards one another, delimiting a slot 21.
  • a channel 22 formed in by which the side edges 2 and 3 of the shutter 1 are guided while the area of the shutter 1 near these edges 2 and 3 extends to through the slot 21.
  • This reintroduction element 12 comprises a base block 16 housed between the upper part 11 of the guide tracks 4 and 5 and the lower part 13 thereof.
  • Two parallel cylinders 17 and 18 extend on this base block 16 at a certain distance from each other, so that said channel 22 extends between these cylinders 17 and 18 and that, consequently, the lateral edges 2 and 3 of the shutter 1 can move through the space formed between these cylinders 17 and 18.
  • a guide member 14 and 15 is provided on each cylinder 17 and 18 projecting from the guide paths 4 and 5.
  • These guide members 14 and 15 have a rounded surface at their side directed towards the part lower 13 of the guide tracks 4 and 5.
  • the distance between the guide members 14 and 15 corresponds substantially to the thickness of the lateral edges 2 and 3 of the flap 1.
  • the guide members 14 and 15 extend over a certain distance over the upper part 11 of the guide paths 4 and 5 and are, at their surface facing one another, each provided with a circle 23 and 24 located opposite this upper part 11 of the guide tracks 4 and 5.
  • the distance between these circles 23 and 24 is slightly greater than the thickness of the flap 1, but less than the thickness of the lateral edges 2 and 3, so that during the upward or downward movement of the shutter 1, while the lateral edges 2 and 3 are guided in the guide tracks 4 and 5, the shutter can move between these circles 23 and 24.
  • the lateral edges 2 and 3 of the shutter 1 When the lateral edges 2 and 3 of the shutter 1 are released from the lower part 13 of the guide tracks 4 and 5, these edges 2 and 3 are reintroduced into the guide tracks 4 and 5 during the upward movement of the shutter 1.
  • the lateral edges 2 and 3 are, at the location of the guide members 14 and 15, guided by said rounded surface of the latter towards a position opposite the slot 21 and the channel 22.
  • the rounds 23 and 24 bear against the lateral edges 2 and 3 of the flap 1 on either side of the plane of the latter in forcing these edges 2 and 3 to enter the upper part 11 of the guide tracks 4 and 5.
  • the lateral edges 2 and 3 of the flap 1 cooperating with the reintroduction element described above, consist of a succession of rigid teeth articulated with respect to each other .
  • a relatively large force is exerted on the edges of the flap, for example, because of the wind or because a vehicle has not yet passed completely through the opening 6.
  • each tooth successively comes to bear against the guide member 14 and 15 before being reintroduced into the guide path. Consequently, all the reintroduction force is permanently applied to a single tooth which is in contact with a single point on the guide member 14 or 15. When this force is greater than the resistance of this tooth, the latter breaks and makes the shutter device non-functional.
  • the lateral edges 2 and 3 of the shutter 1 are made of a material which can temporarily deform, thus presenting a shape memory.
  • the hardness of the lateral edges 2 and 3 of the flap 1, the thickness of the protruding edge 2 and 3 and the distance between the guide members 14 and 15 are chosen so that, when said force exerted on the lateral edges 2 and 3 by the reintroduction element exceeds a determined value, these edges 2 and 3 deform in an elastic manner allowing the edges 2 and 3 to disengage from the reintroduction element 12.
  • the side edges 2 and 3 of the flap 1 are made of an elastomeric material, such as polyurethane. It has been found that such an elastomer with a Shore A hardness between 75 and 100 and, in particular, a Shore A hardness between 75 and 95, gives excellent results.
  • the lateral edges 2 and 3 of the flap 1 have a Shore A hardness between 90 and 95.
  • a contact surface is formed between the reintroduction element 12 and these edges 2 and 3 during the upward movement of the flap 1.
  • the presence of a contact surface 37 has the consequence that the force, exerted between the lateral edges 2 and 3 and the reintroduction element 12, is distributed over this surface of contact 37 and is no longer concentrated in a point of contact, as is the case in the prior art.
  • this force exceeds the aforementioned determined value, the side edges are deformed, as illustrated in FIGS. 8 to 9, causing the release of the side edges 2 and 3 of the element reintroduction 13.
  • the lateral edges 2 and 3 of the flap 1, represented in FIGS. 4 to 7, consist of a bead, so that, during this deformation, this is compressed gradually so as to be able to pass through the space between said circles 23 and 24.
  • the contact surface 37, between the reintroduction element 13 and the side edges 2 and 3, then undergoes a displacement relative to the axis of these side edges 2 and 3. This contact surface 37 approaches the central axis of the lateral edges 2 and 3 during the compression of the latter.
  • Figures 8 to 11 show successive stages of this deformation of a lateral edge 2 or 3 of the flap 1 when a tensile force in the direction of the arrow 25 is exerted on this edge by the flap 1. After the edges side 2 and 3 have emerged from the reintroduction element 12, they resume their original shape and dimensions, as shown in FIG. 11.
  • edges 2 and 3 are, in particular, chosen in such a way that, when a tensile force transverse to the longitudinal direction of the guide tracks 4 and 5 is exerted on said edges 2 and 3, these edges are emerge from their corresponding guide paths 4 and 5 without being considerably deformed, while, when this force exceeds said determined value, these edges 2 and 3 temporarily deform further so as to be able to disengage from the reintroduction element 12 .
  • edges 2 and 3 are, more specifically, applicable when the ratio between the distance separating the guide members 14 and 15, in particular the distance between the rounds 23 and 24, and the thickness of the lateral edges 2 and 3 is between 3/10 and 7/10, in particular between 3.5 / 10 and 6.5 / 10. Preferably this ratio is between 4.5 / 10 and 5.5 / 10.
  • Figures 12 to 14 show a second embodiment of the reintroduction element, according to the invention.
  • the upper part 11 of the guide paths 4 and 5 comprises a frame 26 having a U-section with a base 27 and two wings 28 and 29.
  • the wings 28 and 29 are folded outwardly to constitute two flanges 30 and 31 which extend substantially parallel to the base 27.
  • a plate 32 and 33 is fixed to each of these flanges 30 and 31 by means of bolts 34.
  • the plates 32 and 33 are each provided with a substantially continuous edge directed towards each other so that a slot 35 is formed between these plates 32 and 33.
  • the projecting lateral edge 2 or 3 of the flap 1 is housed in the space formed between the wings 28 and 29 of the frame 26, the shutter 1 then extending through the slot 35.
  • the lower part 13 of the guide paths 4 and 5 is separated from the upper part 11 by a recess 36 provided in the guide paths 4 and 5.
  • Each of the dishes 32 and 33 has at its lower end a guide member 14 and 15 which is arranged opposite the recess 36.
  • These guide members 14 and 15 have the shape of a round whose axis extends transversely to the longitudinal direction of the guide tracks 4 and 5 and to the plane of the flap 1.
  • these guide members 14 and 15 exert a pushing force on the lateral edges 2 and 3 of the shutter 1 in order to reintroduce the latter in the upper part 11 of the guide paths between the wings 28 and 29 of the frame 26.
  • the end of the lower part 13 of the guide paths facing the guide members 14 and 15 is bevelled to ensure continuous movement of the flap 1 when it is moved to its closed position.
  • the reintroduction element 12 therefore comprises said dishes 32 and 33 with the guide members 14 and 15.
  • Excellent results have been obtained when, for the hardnesses mentioned above, the lateral edges 2 and 3 consist of a bead continuous with a circular section with a diameter of 6 mm and when the distance between the guide members 14 and 15 is of the order of 3 mm.
  • the thickness of the flap 1 in the area near the side edges 2 and 3 is, for example, 2 mm.
  • the guide members 14 and 15 are supported on the lateral edges 2 and 3 of the shutter 1 on a surface of contact 37 on either side of the plane of the shutter 1 in order to reintroduce these edges 2 and 3 into the upper part 11 of the guide tracks 4 and 5.
  • the lower end of the side edges 2 and 3 of the flap 1 is inserted, for example by hand, into the upper part 11 of the guide tracks 4 and 5. Then the shutter device can operate again without the need for additional repairs.
  • the guide members 14 and 15 are made of a rigid material, such as for example metal, and the side edges are made of an elastically deformable material, it is perfectly possible for the side edges 2 and 3 of the shutter 1 comprise a succession of rigid teeth, while the guide members 14 and 15 are made of an elastic material. In this way, during the reintroduction of the lateral edges 2 and 3 of the flap 1 in the guide tracks 4 and 5, a contact surface 37 is successively formed between each tooth and the guide members 14 and 15. When a force of traction greater than a determined value is exerted on the lateral edges 2 and 3 of the shutter 1, the guide members 14 and 15 are deformed further in order to release these lateral edges 2 and 3 from the reintroduction element 12.
  • the reintroduction element 12 is resiliently mounted on a support so that, when said tensile force exceeds the above-mentioned determined value, the reintroduction element 12 is temporarily displaced under the action of the lateral edges 2 and 3 in order to allow the latter to disengage relative to this reintroduction element 12.
  • the contact surface between the latter gradually moves over the lateral edges 2 and 3 away from the flap 1.
  • the lateral edges 2 and 3 of the shutter 1 consist of elastic discrete elements extending one after the other in the longitudinal direction of the lateral edges of the shutter.
  • Such elements can, for example, form a succession of teeth.
  • These teeth are, in particular, made of an elastomeric material, such as polyurethane, and have the same hardness as the lateral edges 2 and 3 of the flap 1 of the first and second embodiments of the invention described above. .
  • edges 2 and 3 are then released from the guide tracks 4 and 5, and a high tensile force is exerted on these edges 2 and 3 during the upward movement of the flap 1, these edges 2 and 3 are deformed further so as to be able to free itself from the reintroduction element 12.
  • the lateral edges 2 and 3 of the flap 1 are provided with a rack which cooperates with a toothed wheel actuated by said drive means, it is advantageous to provide a frame in these lateral edges 2 and 3. It is intended, in particular, a reinforcement of fibers, in particular glass fibers or aramid fibers. These fibers extend along the length of the lateral edges 2 and 3, in these edges 2 and 3 themselves or in the region of the flap 1 near the edges 2 and 3.

Abstract

The invention relates to a shutter device for closing a bay (6) or another opening, comprising flexible edges (2, 3) which extend from the plane of the shutter (1) and interact with guideways (4, 5), at least one element (12) reintroducing said edges (2, 3) in the guideways (4, 5) when said edges (2, 3) have disengaged therefrom due to a force that has been applied to the edges (2, 3) in a direction perpendicular to the guideways (4, 5), a contact surface (37) being formed between the reintroducing element (12) and the corresponding edge (2, 3) during reintroduction. The inventive shutter device is characterized by the fact that the lateral edges (2, 3) are made at least in part of an elastomeric material such that said contact surface (37) expands when said force increases by spreading said force across the contact surface (37).

Description

DISPOSITIF À VOLET PRÉSENTANT DES BORDS LATÉRAUX FLEXIBLES SHUTTER DEVICE HAVING FLEXIBLE SIDE EDGES
L'invention est relative à un dispositif à volet destiné à la fermeture d'une baie ou autre ouverture, le volet présentant des bords flexibles saillant par rapport au plan du volet et coopérant avec des chemins de guidage, au moins un élément de réintroduction étant prévu permettant de réintroduire lesdits bords dans les chemins de guidage lorsque ces bords se sont dégagés de ces derniers sous l'action d'une force exercée sur ces bords dans une direction transversale aux chemins de guidage, une surface de contact étant formée pendant cette réintroduction entre l'élément de réintroduction et le bord correspondant.The invention relates to a shutter device intended for closing a bay or other opening, the shutter having flexible edges projecting from the plane of the shutter and cooperating with guide tracks, at least one reintroduction element being provided for reintroducing said edges into the guideways when these edges are released from the latter under the action of a force exerted on these edges in a direction transverse to the guideways, a contact surface being formed during this reintroduction between the reintroduction element and the corresponding edge.
L'invention concerne, en particulier, un dispositif à volet dont les bords latéraux du volet peuvent se dégager des chemins de guidages, par exemple, lorsqu'un obstacle se trouve entre les chemins de guidage lors de la fermeture du volet ou lorsqu'un véhicule vient en collision avec le volet. L'élément de réintroduction prévu a l'endroit de la partie supérieure des chemins de guidage permet de réintroduire les bords latéraux du volet dans les chemins de guidage lors de son mouvement ascendant.The invention relates, in particular, to a shutter device the lateral edges of the shutter of which can be released from the guideways, for example, when an obstacle is located between the guideways when the shutter is closed or when a vehicle collides with the flap. The reintroduction element provided at the location of the upper part of the guide tracks makes it possible to reintroduce the lateral edges of the flap in the guide tracks during its upward movement.
Le fonctionnement des dispositifs à volet connus est perturbé lorsqu'un des bords latéraux du volet s'est dégagé de son chemin de guidage. En effet, lesdits bords latéraux peuvent ainsi être endommagés à l'endroit de leur surface de contact avec les moyens de réintroduction ou peuvent se coincer dans cet élément de réintroduction. Ceci a comme conséquence que les bords latéraux du volet doivent être libérés manuellement de l'élément de réintroduction et nécessitent souvent une réparation très laborieuse. Ces problèmes sont particulièrement importants lorsque les bords latéraux du volet sont formés d'une succession de blochets rigides. Un des buts essentiels de la présente invention est de proposer un dispositif à volet dont les bords latéraux et l'élément de réintroduction ne peuvent pas être endommagés lorsqu'une force supérieure à une force prédéterminée est exercée sur ces bords du volet lors du mouvement ascendant de ce dernier.The operation of known shutter devices is disturbed when one of the lateral edges of the shutter has cleared of its guide path. In fact, said lateral edges can thus be damaged at the place of their contact surface with the reintroduction means or can become jammed in this reintroduction element. This has the consequence that the side edges of the flap must be released manually from the reintroduction element and often require very laborious repair. These problems are particularly important when the lateral edges of the shutter are formed from a succession of rigid blocks. One of the essential aims of the present invention is to provide a shutter device, the lateral edges and the reintroduction element of which cannot be damaged when a force greater than a predetermined force is exerted on these edges of the shutter during the upward movement. of the last.
A cet effet, suivant l'invention, l'élément de réintroduction et le bord saillant coopèrent l'un avec l'autre d'une manière telle à ce que, dès que la force exercée sur le bord dans une direction transversale aux chemins de guidages, dépasse une valeur déterminée, la surface de contact entre l'élément de réintroduction et le bord correspondant subit un déplacement par rapport à un axe longitudinal du bord saillant, situé à une certaine distance de la surface de contact, permettant le dégagement du bord par rapport à l'élément de réintroduction.To this end, according to the invention, the reintroduction element and the projecting edge cooperate with each other in such a way that, as soon as the force exerted on the edge in a direction transverse to the paths of guides, exceeds a determined value, the contact surface between the reintroduction element and the edge correspondent undergoes a displacement relative to a longitudinal axis of the projecting edge, located at a certain distance from the contact surface, allowing the clearance of the edge relative to the reintroduction element.
Suivant une forme de réalisation avantageuse de l'invention, lesdits bords du volet sont constitués d'un matériau souple et déformable à mémoire de forme de manière à ce que ces bords reprennent leur forme originale après une déformation sous l'effet du déplacement susdit de la surface de contact.According to an advantageous embodiment of the invention, said edges of the flap are made of a flexible and deformable material with shape memory so that these edges return to their original shape after a deformation under the effect of the aforementioned displacement of the contact surface.
Avantageusement, lesdits bords sont constitués d'un matériau élastomère. Ces bords présentent, en particulier, une dureté Shore A entre 65° et 100° et sont de préférence réalisés, au moins partiellement, de polyuréthanne.Advantageously, said edges are made of an elastomeric material. These edges have, in particular, a Shore A hardness between 65 ° and 100 ° and are preferably made, at least partially, of polyurethane.
Suivant une forme de réalisation particulière de l'invention, la dureté des bords est choisie d'une manière telle que, lorsqu'une force de traction transversale à la direction longitudinale des chemins de guidage est exercée sur lesdits bords, ces bords se dégagent de leur chemin de guidage correspondant sans qu'ils soient déformés considérablement, tandis que, lorsque cette force dépasse une certaine valeur, ces bords se déforment temporairement davantage afin de pouvoir se dégager de l'élément de réintroduction.According to a particular embodiment of the invention, the hardness of the edges is chosen in such a way that, when a tensile force transverse to the longitudinal direction of the guide tracks is exerted on said edges, these edges are released from their corresponding guide path without being considerably deformed, while, when this force exceeds a certain value, these edges temporarily deform further in order to be able to disengage from the reintroduction element.
Suivant une forme de réalisation spécifique de l'invention, l'élément de réintroduction est monté d'une manière élastique sur un support de telle sorte que, lorsque ladite force de traction dépasse la valeur déterminée susmentionnée, l'élément de réintroduction est déplacé temporairement sous l'action du bord correspondant afin de permettre que ce dernier se dégage par rapport à l'élément de réintroduction.According to a specific embodiment of the invention, the reintroduction element is mounted in an elastic manner on a support so that, when said tensile force exceeds the determined value mentioned above, the reintroduction element is temporarily moved under the action of the corresponding edge in order to allow the latter to be released relative to the reintroduction element.
Suivant une forme de réalisation alternative de l'invention l'élément de réintroduction est constitué d'un matériau déformable à mémoire de forme de manière à ce que, lorsque ladite force de traction dépasse la valeur déterminée susmentionnée, l'élément de réintroduction est déformé sous l'action du bord correspondant lorsque ce dernier se dégage par rapport à l'élément de réintroduction.According to an alternative embodiment of the invention the reintroduction element is made of a deformable material with shape memory so that, when said tensile force exceeds the determined value mentioned above, the reintroduction element is deformed under the action of the corresponding edge when the latter emerges relative to the reintroduction element.
D'autres détails et particularités de l'invention ressortiront de la description donnée, ci-après, à titre d'exemple non limitatif, de quelques formes de réalisation particulières d'un dispositif à volet, suivant l'invention, avec référence aux dessins annexés. La figure 1 est une vue schématique en coupe verticale d'une première forme de réalisation d'un dispositif à volet suivant l'invention avec le volet en position de fermeture.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 shutter device, according to the invention, with reference to the drawings. attached. Figure 1 is a schematic view in vertical section of a first embodiment of a shutter device according to the invention with the shutter in the closed position.
La figure 2 est une vue analogue à celle de la figure 1 avec le volet dans sa position d'ouverture.Figure 2 is a view similar to that of Figure 1 with the flap in its open position.
La figure 3 est une vue frontale du dispositif à volet dans la position d'ouverture.Figure 3 is a front view of the shutter device in the open position.
La figure 4 est, à plus grande échelle, une représentation schématique frontale de l'élément de réintroduction suivant une première forme de réalisation du dispositif à volet, suivant l'invention.Figure 4 is, on a larger scale, a front schematic representation of the reintroduction element according to a first embodiment of the shutter device according to the invention.
La figure 5 est une section suivant la ligne V-V de la figure 4.Figure 5 is a section along the line V-V in Figure 4.
La figure 6 est une section suivant la ligne VI-VI de la figure 4.Figure 6 is a section along line VI-VI of Figure 4.
La figure 7 est une vue perspective de l'élément de réintroduction de la figure 4 avec un bord latéral du volet. Les figures 8 à 11 représentent des sections suivant la ligne VI-VI de la figure 4 avec différentes étapes successives lors du dégagement du bord latéral du volet par rapport à l'élément de réintroduction.Figure 7 is a perspective view of the reintroduction member of Figure 4 with a side edge of the flap. Figures 8 to 11 show sections along line VI-VI of Figure 4 with different successive steps during the release of the side edge of the flap relative to the reintroduction element.
La figure 12 est une vue latérale de l'élément de réintroduction suivant une deuxième forme de réalisation de l'invention. La figure 13 est une vue éclatée en perspective de l'élément de réintroduction de la figure 12.Figure 12 is a side view of the reintroduction element according to a second embodiment of the invention. FIG. 13 is an exploded perspective view of the reintroduction element of FIG. 12.
La figure 14 est une représentation schématique en perspective de l'élément de réintroduction de la figure 12 lors de la réintroduction du bord latéral du volet dans le chemin de guidage correspondant. Dans les différentes figures les mêmes chiffres de référence se rapportent aux mêmes éléments ou à des éléments analogues.Figure 14 is a schematic perspective representation of the reintroduction element of Figure 12 during the reintroduction of the side edge of the flap in the corresponding guide path. In the various figures, the same reference numerals relate to the same or similar elements.
D'une façon générale, la présente invention est relative à un dispositif à volet coopérant avec des moyens d'entraînement, tel qu'un tambour dont l'axe est branché sur l'arbre d'un moteur électrique. Le volet se déplace suivant un mouvement descendant et ascendant entre, respectivement, une position de fermeture et une position d'ouverture, et est destiné à la fermeture d'une baie dans une paroi ou d'un passage, tel qu'un couloir. Par le mot "volet", il y a lieu de comprendre, dans le cadre de la présente invention, tout élément plan au moins partiellement souple ou flexible, tel qu'une bâche, une bande en matière plastique, une toile métallique, un treillis, une tôle métallique, une porte sectionnale, etc. II y a, toutefois, lieu de noter qu'une préférence prononcée est donnée aux volets souples formés, par exemple, par une bâche. Les figures annexées se rapportent, par conséquent, plus particulièrement à une telle bâche.In general, the present invention relates to a shutter device cooperating with drive means, such as a drum whose axis is connected to the shaft of an electric motor. The shutter moves in a downward and upward movement between, respectively, a closed position and an open position, and is intended for closing a bay in a wall or passage, such as a corridor. By the word "shutter" should be understood, in the context of the present invention, any planar element at least partially flexible or flexible, such as a tarpaulin, a strip of plastic material, a wire fabric, a trellis , a metal sheet, a sectional door, etc. It should, however, be noted that a pronounced preference is given to flexible shutters formed, for example, by a tarpaulin. The attached figures therefore relate more particularly to such a tarpaulin.
Dans la figure 1, le dispositif à volet est représenté schématiquement dans la position de fermeture, tandis que dans les figures 2 et 3 le dispositif à volet est montré dans la position d'ouverture. Ce dispositif comprend un volet 1 avec des bords latéraux 2 et 3 saillant par rapport au plan du volet qui sont avantageusement formés par un bourrelet continu ou par une succession de petits blocs articulés l'un par rapport à l'autre se déplaçant dans des chemins de guidage 4 et 5. Les chemins de guidage 4 et 5 sont prévus de part et d'autre d'une baie 6 qui est présente dans une paroi 7. Au-dessus de la baie 6 est prévu un tambour 8 sur lequel le volet 1 peut être enroulé. Des moyens d'entraînement 9, comme par exemple un moteur électrique, actionnent un arbre 10 qui s'étend suivant l'axe du tambour 8 afin de pouvoir enrouler le volet 1 sur le tambour 8 pour l'amener dans la position d'ouverture ou de pouvoir le dérouler vers sa position de fermeture. Les chemins de guidage 4 et 5 comprennent à l'endroit de leur partie supérieure 11 un élément de réintroduction 12.In Figure 1, the shutter device is shown schematically in the closed position, while in Figures 2 and 3 the shutter device is shown in the open position. This device comprises a flap 1 with lateral edges 2 and 3 projecting from the plane of the flap which are advantageously formed by a continuous bead or by a succession of small blocks articulated relative to each other moving in paths guide 4 and 5. Guide paths 4 and 5 are provided on either side of a bay 6 which is present in a wall 7. Above bay 6 is provided a drum 8 on which the flap 1 can be rolled up. Drive means 9, such as an electric motor, actuate a shaft 10 which extends along the axis of the drum 8 so as to be able to wind the shutter 1 on the drum 8 to bring it into the open position or to be able to unwind it towards its closed position. The guide tracks 4 and 5 comprise, at the place of their upper part 11, a reintroduction element 12.
Cet élément de réintroduction 12 permet de réintroduire les bords latéraux 2 et 3 dans les chemins de guidage 4 et 5 pendant l'ouverture du volet 1 lorsque ceux-ci se sont dégagés de la partie inférieure 13 des chemins de guidage 4 et 5 en- dessous de l'élément de réintroduction 12. Les bords latéraux 2 et 3 peuvent se dégager, par exemple, lorsqu'un obstacle se trouve entre les chemins de guidage 4 et 5 lors de la fermeture du volet 1 ou lorsque, par exemple, un véhicule vient en collision avec le volet 1.This reintroduction element 12 makes it possible to reintroduce the lateral edges 2 and 3 into the guide tracks 4 and 5 during the opening of the flap 1 when these are released from the lower part 13 of the guide tracks 4 and 5 in below the reintroduction element 12. The lateral edges 2 and 3 can be released, for example, when an obstacle is located between the guide tracks 4 and 5 when the shutter 1 is closed or when, for example, a vehicle collides with flap 1.
Les chemins de guidage 4 et 5 présentent une section en U avec deux ailes 19 et 20. Les bords de ces ailes 19 et 20 sont repliés l'un vers l'autre en délimitant une fente 21. Ainsi, un canal 22 formé dans par lequel les bords latéraux 2 et 3 du volet 1 sont guidés alors que la zone du volet 1 à proximité de ces bords 2 et 3 s'étend à travers la fente 21. Lors du dégagement des bords latéraux 2 et 3 de la partie inférieure 13 des chemins de guidage 4 et 5, lesdits ailes 19 et 20 s'écartent l'une de l'autre d'une manière élastique sous l'effet d'une force de traction exercée sur ces bords latéraux 2 et 3 par le volet 1. Les figures 4 à 7 représentent l'élément de réintroduction 12 à plus grande échelle. Cet élément de réintroduction 12 comprend un bloc de base 16 logé entre la partie supérieure 11 des chemins de guidage 4 et 5 et la partie inférieure 13 de ceux-ci. Deux cylindres parallèles 17 et 18 s'étendent sur ce bloc de base 16 à une certaine distance l'un de l'autre, de telle sorte que ledit canal 22 s'étend entre ces cylindres 17 et 18 et que, par conséquent, les bords latéraux 2 et 3 du volet 1 peuvent se déplacer à travers l'espace formé entre ces cylindres 17 et 18.The guide paths 4 and 5 have a U-shaped section with two wings 19 and 20. The edges of these wings 19 and 20 are folded towards one another, delimiting a slot 21. Thus, a channel 22 formed in by which the side edges 2 and 3 of the shutter 1 are guided while the area of the shutter 1 near these edges 2 and 3 extends to through the slot 21. When the lateral edges 2 and 3 of the lower part 13 of the guide tracks 4 and 5 are released, said wings 19 and 20 move away from one another in an elastic manner under the effect of a tensile force exerted on these lateral edges 2 and 3 by the flap 1. FIGS. 4 to 7 show the reintroduction element 12 on a larger scale. This reintroduction element 12 comprises a base block 16 housed between the upper part 11 of the guide tracks 4 and 5 and the lower part 13 thereof. Two parallel cylinders 17 and 18 extend on this base block 16 at a certain distance from each other, so that said channel 22 extends between these cylinders 17 and 18 and that, consequently, the lateral edges 2 and 3 of the shutter 1 can move through the space formed between these cylinders 17 and 18.
Au niveau de ladite fente 21 un organe de guidage 14 et 15 est prévu sur chaque cylindre 17 et 18 saillant par rapport aux chemins de guidage 4 et 5. Ces organes de guidage 14 et 15 présentent une surface arrondie à leur côté dirigé vers la partie inférieure 13 des chemins de guidage 4 et 5. La distance entre les organes de guidage 14 et 15 correspond sensiblement à l'épaisseur des bords latéraux 2 et 3 du volet 1.At said slot 21 a guide member 14 and 15 is provided on each cylinder 17 and 18 projecting from the guide paths 4 and 5. These guide members 14 and 15 have a rounded surface at their side directed towards the part lower 13 of the guide tracks 4 and 5. The distance between the guide members 14 and 15 corresponds substantially to the thickness of the lateral edges 2 and 3 of the flap 1.
Les organes de guidage 14 et 15 s'étendent sur une certaine distance sur la partie supérieure 11 des chemins de guidage 4 et 5 et sont, à leur surface en regard l'un de l'autre, chacun pourvu d'un rond 23 et 24 situé en regard de cette partie supérieure 11 des chemins de guidage 4 et 5. La distance entre ces ronds 23 et 24 est légèrement supérieure à l'épaisseur du volet 1, mais inférieure à l'épaisseur des bords latéraux 2 et 3, de sorte que lors du mouvement ascendant ou descendant du volet 1, pendant que les bords latéraux 2 et 3 sont guidés dans les chemins de guidage 4 et 5, le volet peut se déplacer entre ces ronds 23 et 24.The guide members 14 and 15 extend over a certain distance over the upper part 11 of the guide paths 4 and 5 and are, at their surface facing one another, each provided with a circle 23 and 24 located opposite this upper part 11 of the guide tracks 4 and 5. The distance between these circles 23 and 24 is slightly greater than the thickness of the flap 1, but less than the thickness of the lateral edges 2 and 3, so that during the upward or downward movement of the shutter 1, while the lateral edges 2 and 3 are guided in the guide tracks 4 and 5, the shutter can move between these circles 23 and 24.
Lorsque les bords latéraux 2 et 3 du volet 1 se sont dégagés de la partie inférieure 13 des chemins de guidage 4 et 5, ces bords 2 et 3 sont réintroduits dans les chemins de guidage 4 et 5 lors du mouvement ascendant du volet 1. En particulier, lors de ce mouvement ascendant, les bords latéraux 2 et 3 sont, à l'endroit des organes de guidage 14 et 15, guidés par ladite surface arrondie de des derniers vers une position en regard de la fente 21 et du canal 22. En même temps, les ronds 23 et 24 s'appuient contre les bords latéraux 2 et 3 du volet 1 de part et d'autre du plan de ce dernier en obligeant ces bords 2 et 3 de rentrer dans la partie supérieure 11 des chemins de guidage 4 et 5.When the lateral edges 2 and 3 of the shutter 1 are released from the lower part 13 of the guide tracks 4 and 5, these edges 2 and 3 are reintroduced into the guide tracks 4 and 5 during the upward movement of the shutter 1. In in particular, during this upward movement, the lateral edges 2 and 3 are, at the location of the guide members 14 and 15, guided by said rounded surface of the latter towards a position opposite the slot 21 and the channel 22. At the same time, the rounds 23 and 24 bear against the lateral edges 2 and 3 of the flap 1 on either side of the plane of the latter in forcing these edges 2 and 3 to enter the upper part 11 of the guide tracks 4 and 5.
Suivant l'état antérieur de la technique, les bords latéraux 2 et 3 du volet 1, coopérant avec l'élément de réintroduction décrit ci-dessus, sont constitués d'une succession de dents rigides articulées l'une par rapport à l'autre. Lors de la réintroduction des bords latéraux 2 et 3 du volet 1 dans les chemins de guidage 4 et 5, il arrive fréquemment qu'une force relativement importante est exercée sur les bords du volet, par exemple, à cause du vent ou parce qu'un véhicule n'est pas encore passé complètement à travers la baie 6. Par suite de la présence d'une telle force, dans une direction transversale aux chemins de guidage 4 et 5, une pression très élevée est exercée à l'endroit du point de contact entre l'élément de réintroduction 12 et la dent correspondante du bord latéral 2 et 3 du volet 1 en causant la destruction de cette dent, un blocage ou la sortie du volet 1 par rapport à l'élément de réintroduction 12.According to the prior art, the lateral edges 2 and 3 of the flap 1, cooperating with the reintroduction element described above, consist of a succession of rigid teeth articulated with respect to each other . During the reintroduction of the lateral edges 2 and 3 of the flap 1 in the guide tracks 4 and 5, it frequently happens that a relatively large force is exerted on the edges of the flap, for example, because of the wind or because a vehicle has not yet passed completely through the opening 6. As a result of the presence of such a force, in a direction transverse to the guide tracks 4 and 5, a very high pressure is exerted at the point of contact between the reintroduction element 12 and the corresponding tooth of the lateral edge 2 and 3 of the flap 1 by causing the destruction of this tooth, a blocking or the exit of the flap 1 relative to the reintroduction element 12.
Plus spécifiquement, pendant la réintroduction du bord latéral 2 ou 3 dans les chemins de guidage 4 ou 5, chaque dent vient successivement s'appuyer contre l'organe de guidage 14 et 15 avant d'être réintroduite dans le chemin de guidage. Par conséquent, toute la force de réintroduction s'applique en permanence sur une seule dent qui est en contact avec un seul point sur l'organe de guidage 14 ou 15. Lorsque cette force est supérieure à la résistance de cette dent, celle-ci se casse et rend le dispositif à volet non fonctionnel.More specifically, during the reintroduction of the lateral edge 2 or 3 into the guide paths 4 or 5, each tooth successively comes to bear against the guide member 14 and 15 before being reintroduced into the guide path. Consequently, all the reintroduction force is permanently applied to a single tooth which is in contact with a single point on the guide member 14 or 15. When this force is greater than the resistance of this tooth, the latter breaks and makes the shutter device non-functional.
Suivant l'invention, les bords latéraux 2 et 3 du volet 1 sont réalisés en une matière pouvant se déformer temporairement en présentant ainsi une mémoire de forme. En particulier, l'on choisit la dureté des bords latéraux 2 et 3 du volet 1, l'épaisseur du bord saillant 2 et 3 et la distance entre les organes de guidage 14 et 15 de façon à ce que, lorsque ladite force exercée sur les bords latéraux 2 et 3 par l'élément de réintroduction dépasse une valeur déterminée, ces bords 2 et 3 se déforment d'une manière élastique en permettant aux bords 2 et 3 de se dégager de l'élément de réintroduction 12.According to the invention, the lateral edges 2 and 3 of the shutter 1 are made of a material which can temporarily deform, thus presenting a shape memory. In particular, the hardness of the lateral edges 2 and 3 of the flap 1, the thickness of the protruding edge 2 and 3 and the distance between the guide members 14 and 15 are chosen so that, when said force exerted on the lateral edges 2 and 3 by the reintroduction element exceeds a determined value, these edges 2 and 3 deform in an elastic manner allowing the edges 2 and 3 to disengage from the reintroduction element 12.
Ladite valeur déterminée de la force exercée sur les bords latéraux 2 et 3 est inférieure à la force de rupture de ces bords latéraux 2 et 3, de sorte que ces bords ne peuvent pas être cassés, mais se déforment lorsqu'une force plus élevée est exercée sur ces bords. D'une manière avantageuse, les bords latéraux 2 et 3 du volet 1 sont constitués d'un matériau élastomère, comme le polyuréthanne. L'on a constaté qu'un tel élastomère avec une dureté Shore A entre 75 et 100 et, en particulier, une dureté Shore A entre 75 et 95, donne des résultats excellents. De préférence, les bords latéraux 2 et 3 du volet 1 présentent une dureté Shore A entre 90 et 95.Said determined value of the force exerted on the lateral edges 2 and 3 is less than the breaking force of these lateral edges 2 and 3, so that these edges cannot be broken, but become deformed when a higher force is exerted on these edges. Advantageously, the side edges 2 and 3 of the flap 1 are made of an elastomeric material, such as polyurethane. It has been found that such an elastomer with a Shore A hardness between 75 and 100 and, in particular, a Shore A hardness between 75 and 95, gives excellent results. Preferably, the lateral edges 2 and 3 of the flap 1 have a Shore A hardness between 90 and 95.
Lorsque des bords latéraux 2 et 3, dont la dureté est choisi comme expliqué ci-dessus, se sont dégagés de la partie inférieure 13 des chemins de guidage 4 et 5, une surface de contact est formée entre l'élément de réintroduction 12 et ces bords 2 et 3 pendant le mouvement ascendant du volet 1. La présence d'une surface de contact 37 a comme conséquence que la force, exercée entre les bords latéraux 2 et 3 et l'élément de réintroduction 12, est repartie sur cette surface de contact 37 et n'est plus concentrée dans un point de contact, comme c'est le cas dans l'état antérieur de la technique.When the lateral edges 2 and 3, the hardness of which is chosen as explained above, have emerged from the lower part 13 of the guide tracks 4 and 5, a contact surface is formed between the reintroduction element 12 and these edges 2 and 3 during the upward movement of the flap 1. The presence of a contact surface 37 has the consequence that the force, exerted between the lateral edges 2 and 3 and the reintroduction element 12, is distributed over this surface of contact 37 and is no longer concentrated in a point of contact, as is the case in the prior art.
Si, pour l'une ou l'autre raison, cette force dépasse la valeur déterminée susmentionnée, les bords latéraux se déforment, comme illustré dans les figures 8 à 9, en provoquant le dégagement des bords latéraux 2 et 3 de l'élément de réintroduction 13. Les bords latéraux 2 et 3 du volet 1, représentés dans les figures 4 à 7, sont constitués d'un bourrelet, de sorte que, lors de cette déformation, celui-ci est comprimé graduellement de manière à pouvoir passer à travers l'espace entre lesdits ronds 23 et 24. La surface de contact 37, entre l'élément de réintroduction 13 et les bords latéraux 2 et 3, subit alors un déplacement par rapport à l'axe de ces bords latéraux 2 et 3. Cette surface de contact 37 s'approche de l'axe central des bords latéraux 2 et 3 pendant la compression de ces derniers.If, for one reason or the other, this force exceeds the aforementioned determined value, the side edges are deformed, as illustrated in FIGS. 8 to 9, causing the release of the side edges 2 and 3 of the element reintroduction 13. The lateral edges 2 and 3 of the flap 1, represented in FIGS. 4 to 7, consist of a bead, so that, during this deformation, this is compressed gradually so as to be able to pass through the space between said circles 23 and 24. The contact surface 37, between the reintroduction element 13 and the side edges 2 and 3, then undergoes a displacement relative to the axis of these side edges 2 and 3. This contact surface 37 approaches the central axis of the lateral edges 2 and 3 during the compression of the latter.
Les figures 8 à 11 représentent des étapes successives de cette déformation d'un bord latéral 2 ou 3 du volet 1 lorsqu'une force de traction dans la direction de la flèche 25 est exercée sur ce bord par le volet 1. Après que les bords latéraux 2 et 3 se sont dégagés de l'élément de réintroduction 12, ils reprennent leur forme et dimensions originales, comme montré à la figure 11.Figures 8 to 11 show successive stages of this deformation of a lateral edge 2 or 3 of the flap 1 when a tensile force in the direction of the arrow 25 is exerted on this edge by the flap 1. After the edges side 2 and 3 have emerged from the reintroduction element 12, they resume their original shape and dimensions, as shown in FIG. 11.
Par le choix de la dureté susmentionnée des bords latéraux 2 et 3, l'on évite que ces bords pourraient se déformer lors de l'utilisation normale du dispositif à volet, suivant l'invention. En particulier, lorsque les bords latéraux 2 et 3 du volet 1 présentent une dureté d'une valeur inférieure aux valeurs mentionnées ci-dessus, ils risquent de se déformer trop fortement, et, par conséquent, de se dégager de la partie inférieure 13 des chemins de guidages 4 et 5 à cause de l'action du vent sur le volet 1 lorsque celui-ci est dans sa position de fermeture.By choosing the aforementioned hardness of the side edges 2 and 3, it is avoided that these edges could deform during normal use of the shutter device according to the invention. In particular, when the lateral edges 2 and 3 of the flap 1 have a hardness of a value lower than the values mentioned above, they are likely to deform too strongly, and therefore to disengage from the lower part 13 of the guide tracks 4 and 5 because of the action of the wind on the flap 1 when the latter is in its closed position.
La dureté des bords 2 et 3 est, en particulier, choisie d'une manière telle que, lorsqu'une force de traction transversale à la direction longitudinale des chemins de guidage 4 et 5 est exercée sur lesdits bords 2 et 3, ces bords se dégagent de leurs chemins de guidage 4 et 5 correspondant sans qu'ils soient déformés considérablement, tandis que, lorsque cette force dépasse ladite valeur déterminée, ces bords 2 et 3 se déforment temporairement davantage afin de pouvoir se dégager de l'élément de réintroduction 12.The hardness of edges 2 and 3 is, in particular, chosen in such a way that, when a tensile force transverse to the longitudinal direction of the guide tracks 4 and 5 is exerted on said edges 2 and 3, these edges are emerge from their corresponding guide paths 4 and 5 without being considerably deformed, while, when this force exceeds said determined value, these edges 2 and 3 temporarily deform further so as to be able to disengage from the reintroduction element 12 .
Les valeurs susmentionnées pour la dureté des bords 2 et 3 est, plus spécifiquement, applicable lorsque le rapport entre la distance séparant les organes de guidage 14 et 15, en particulier la distance entre les ronds 23 et 24, et l'épaisseur des bords latéraux 2 et 3 est compris entre 3/10 et 7/10, en particulier entre 3,5/10 et 6,5/10. De préférence ce rapport est compris entre 4,5/10 et 5,5/10.The above-mentioned values for the hardness of edges 2 and 3 is, more specifically, applicable when the ratio between the distance separating the guide members 14 and 15, in particular the distance between the rounds 23 and 24, and the thickness of the lateral edges 2 and 3 is between 3/10 and 7/10, in particular between 3.5 / 10 and 6.5 / 10. Preferably this ratio is between 4.5 / 10 and 5.5 / 10.
Les figures 12 à 14 représentent une deuxième forme de réalisation de l'élément de réintroduction, suivant l'invention. Dans cette forme de réalisation, la partie supérieure 11 des chemins de guidage 4 et 5 comprend un châssis 26 ayant une section en U avec une base 27 et deux ailes 28 et 29. Les ailes 28 et 29 sont pliées vers l'extérieure de manière à constituer deux rebords 30 et 31 qui s'étendent sensiblement parallèlement à la base 27. Un plat 32 et 33 est fixé sur chacun de ces rebords 30 et 31 au moyen de boulons 34. Les plats 32 et 33 sont chacun pourvu d'un bord sensiblement continu dirigé l'un vers l'autre de sorte qu'une fente 35 est formée entre ces plats 32 et 33. Le bord latéral saillant 2 ou 3 du volet 1 est logé dans l'espace formé entre les ailes 28 et 29 du châssis 26, le volet 1 s'étendant alors à travers la fente 35. La largeur de cette fente 35 est légèrement supérieure à l'épaisseur du volet 1 et inférieure à l'épaisseur du bord saillant 2 et 3, de sorte que ce bord ne peut pas sortir de l'espace entre les ailes 28 et 29 sans être déformé considérablement, tout en permettant au volet même de glisser entre les bords en regard des plats 32 et 33. Les chemins de guidage 4 et 5 sont fixés sur le châssis 26 entre les ailes 28 et 29 d'une manière telle à ce que la fente 35 entre les plats 32 et 33 est alignée avec la fente 21 entre les ailes 19 et 20 des chemins de guidage 4 et 5.Figures 12 to 14 show a second embodiment of the reintroduction element, according to the invention. In this embodiment, the upper part 11 of the guide paths 4 and 5 comprises a frame 26 having a U-section with a base 27 and two wings 28 and 29. The wings 28 and 29 are folded outwardly to constitute two flanges 30 and 31 which extend substantially parallel to the base 27. A plate 32 and 33 is fixed to each of these flanges 30 and 31 by means of bolts 34. The plates 32 and 33 are each provided with a substantially continuous edge directed towards each other so that a slot 35 is formed between these plates 32 and 33. The projecting lateral edge 2 or 3 of the flap 1 is housed in the space formed between the wings 28 and 29 of the frame 26, the shutter 1 then extending through the slot 35. The width of this slot 35 is slightly greater than the thickness of the shutter 1 and less than the thickness of the protruding edge 2 and 3, so that this edge cannot leave the space between the wings 28 and 29 without being considerably deformed while allowing the shutter itself to slide between the opposite edges of the plates 32 and 33. The guide tracks 4 and 5 are fixed to the frame 26 between the wings 28 and 29 in such a way that the slot 35 between the flats 32 and 33 is aligned with the slot 21 between the wings 19 and 20 of the tracks guide 4 and 5.
La partie inférieure 13 des chemins de guidage 4 et 5 est séparée de la partie supérieure 11 par un évidement 36 pourvu dans les chemins de guidage 4 et 5.The lower part 13 of the guide paths 4 and 5 is separated from the upper part 11 by a recess 36 provided in the guide paths 4 and 5.
Chacun des plats 32 et 33 présente à son extrémité inférieure un organe de guidage 14 et 15 qui est agencé en regard de l' évidement 36. Ces organes de guidage 14 et 15 ont la forme d'un rond dont l'axe s'étend transversalement par rapport à la direction longitudinale des chemins de guidage 4 et 5 et au plan du volet 1. Lors de l'ouverture du volet 1, après que les bords latéraux 2 et 3 du voletEach of the dishes 32 and 33 has at its lower end a guide member 14 and 15 which is arranged opposite the recess 36. These guide members 14 and 15 have the shape of a round whose axis extends transversely to the longitudinal direction of the guide tracks 4 and 5 and to the plane of the flap 1. When the flap 1 is opened, after the side edges 2 and 3 of the flap
1 se sont dégagés par rapport à la partie inférieure 13 des chemins de guidage, comme représenté dans la figure 14, ces organes de guidage 14 et 15 exercent une force de poussée sur les bords latéraux 2 et 3 du volet 1 afin de réintroduire ces derniers dans la partie supérieure 11 des chemins de guidage entre les ailes 28 et 29 du châssis 26. L'extrémité de la partie inférieure 13 des chemins de guidage en regard des organes de guidage 14 et 15 est biseauté pour assurer un mouvement continu du volet 1 lorsque celui-ci est déplacé vers sa position de fermeture.1 are released with respect to the lower part 13 of the guide tracks, as shown in FIG. 14, these guide members 14 and 15 exert a pushing force on the lateral edges 2 and 3 of the shutter 1 in order to reintroduce the latter in the upper part 11 of the guide paths between the wings 28 and 29 of the frame 26. The end of the lower part 13 of the guide paths facing the guide members 14 and 15 is bevelled to ensure continuous movement of the flap 1 when it is moved to its closed position.
L'élément de réintroduction 12 comprend donc lesdits plats 32 et 33 avec les organes de guidage 14 et 15. Des résultats excellents ont été obtenus lorsque, pour les duretés mentionnés ci-dessus, les bords latéraux 2 et 3 sont constitués d'un bourrelet continu avec une section circulaire d'un diamètre de 6 mm et lorsque la distance entre les organes de guidage 14 et 15 est de l'ordre de 3 mm. Dans un tel cas, l'épaisseur du volet 1 dans la zone à proximité des bords latéraux 2 et 3 est, par exemple, de 2 mm. Lorsque les bords latéraux 2 et 3 du volet se dégagent de la partie inférieure 13 des chemins de guidage 4 et 5, ces bords 2 et 3 sont peu déformés sensiblement, mais les ailes 19 et 20 des chemins de guidage 4 et 5 se sont éloignées l'une par rapport à l'autre d'une manière élastique en élargissant la fente 21, de telle sorte que les bords latéraux 2 et 3 du volet 1 puissent sortir des chemins de guidage 4 et 5.The reintroduction element 12 therefore comprises said dishes 32 and 33 with the guide members 14 and 15. Excellent results have been obtained when, for the hardnesses mentioned above, the lateral edges 2 and 3 consist of a bead continuous with a circular section with a diameter of 6 mm and when the distance between the guide members 14 and 15 is of the order of 3 mm. In such a case, the thickness of the flap 1 in the area near the side edges 2 and 3 is, for example, 2 mm. When the lateral edges 2 and 3 of the shutter emerge from the lower part 13 of the guide tracks 4 and 5, these edges 2 and 3 are slightly deformed appreciably, but the wings 19 and 20 of the guide tracks 4 and 5 have moved away one with respect to the other in an elastic manner by widening the slot 21, so that the lateral edges 2 and 3 of the flap 1 can come out of the guide tracks 4 and 5.
Lors du mouvement ascendant subséquent du volet 1, les organes de guidage 14 et 15 s'appuient sur les bords latéraux 2 et 3 du volet 1 sur une surface de contact 37 de part et d'autre du plan du volet 1 afin de réintroduire ces bords 2 et 3 dans la partie supérieure 11 des chemins de guidage 4 et 5.During the subsequent upward movement of the shutter 1, the guide members 14 and 15 are supported on the lateral edges 2 and 3 of the shutter 1 on a surface of contact 37 on either side of the plane of the shutter 1 in order to reintroduce these edges 2 and 3 into the upper part 11 of the guide tracks 4 and 5.
Lorsque, pendant cette réintroduction, une force de traction, transversalement à la direction des chemins de guidage 4 et 5, est exercée sur ces bords latéraux 2 et 3, ladite surface de contact 37 devient plus importante au fur et à mesure que la force de traction augmente, en répartissant l'action de cette force sur la surface de contact 37. Au moment où cette force est trop élevée et qu'il pourrait y avoir un risque que les organes de guidage 14 et 15 ou les bords latéraux 2 et 3 soient endommagés, ces derniers se déforment d'une manière élastique et se dégagent, sans aucun dommage, de l'élément de réintroduction 13 et, par conséquent, de la partie supérieure 11 des chemins de guidage 4 et 5.When, during this reintroduction, a tensile force, transverse to the direction of the guide tracks 4 and 5, is exerted on these lateral edges 2 and 3, said contact surface 37 becomes greater as the force of traction increases, by distributing the action of this force on the contact surface 37. At the moment when this force is too high and that there could be a risk that the guide members 14 and 15 or the lateral edges 2 and 3 are damaged, the latter deform in an elastic manner and disengage, without any damage, from the reintroduction element 13 and, consequently, from the upper part 11 of the guide tracks 4 and 5.
Avant que le volet 1 ne soit déplacé de nouveau vers sa position de fermeture, l'on insère, par exemple à la main, l'extrémité inférieure des bords latéraux 2 et 3 du volet 1 dans la partie supérieure 11 des chemins de guidage 4 et 5. Ensuite, le dispositif à volet peut fonctionner de nouveau sans que des réparations supplémentaires ne soient nécessaire.Before the flap 1 is again moved to its closed position, the lower end of the side edges 2 and 3 of the flap 1 is inserted, for example by hand, into the upper part 11 of the guide tracks 4 and 5. Then the shutter device can operate again without the need for additional repairs.
Quoique dans la description susmentionnée, les organes de guidage 14 et 15 soient réalisés en une matière rigide, comme par exemple du métal, et que les bords latéraux sont constitués d'une matière élastiquement déformable, il est parfaitement possible que les bords latéraux 2 et 3 du volet 1 comprennent une succession de dents rigides, tandis que les organes de guidage 14 et 15 sont réalisés en une matière élastique. De cette façon, lors de la réintroduction des bords latéraux 2 et 3 du volet 1 dans les chemins de guidage 4 et 5, une surface de contact 37 est formée successivement entre chaque dent et les organes de guidage 14 et 15. Lorsqu'une force de traction supérieure à une valeur déterminée est exercée sur les bords latéraux 2 et 3 du volet 1 , les organes de guidage 14 et 15 se déforment davantage afin de dégager ces bords latéraux 2 et 3 de l'élément de réintroduction 12.Although in the above-mentioned description, the guide members 14 and 15 are made of a rigid material, such as for example metal, and the side edges are made of an elastically deformable material, it is perfectly possible for the side edges 2 and 3 of the shutter 1 comprise a succession of rigid teeth, while the guide members 14 and 15 are made of an elastic material. In this way, during the reintroduction of the lateral edges 2 and 3 of the flap 1 in the guide tracks 4 and 5, a contact surface 37 is successively formed between each tooth and the guide members 14 and 15. When a force of traction greater than a determined value is exerted on the lateral edges 2 and 3 of the shutter 1, the guide members 14 and 15 are deformed further in order to release these lateral edges 2 and 3 from the reintroduction element 12.
Dans une autre forme de réalisation du dispositif à volet, suivant l'invention, l'élément de réintroduction 12 est monté d'une manière élastique sur un support de telle sorte que, lorsque ladite force de traction dépasse la valeur déterminée susmentionnée, l'élément de réintroduction 12 est déplacé temporairement sous l'action des bords latéraux 2 et 3 afin de permettre que ces derniers se dégagent par rapport à cet élément de réintroduction 12. Lors du dégagement des bords latéraux 2 et 3 de l'élément de réintroduction 12, la surface de contact entre ces derniers se déplace graduellement sur les bords latéraux 2 et 3 en s'éloignant du volet 1.In another embodiment of the shutter device, according to the invention, the reintroduction element 12 is resiliently mounted on a support so that, when said tensile force exceeds the above-mentioned determined value, the reintroduction element 12 is temporarily displaced under the action of the lateral edges 2 and 3 in order to allow the latter to disengage relative to this reintroduction element 12. When the lateral edges 2 and 3 of the reintroduction element 12 are released, the contact surface between the latter gradually moves over the lateral edges 2 and 3 away from the flap 1.
Dans encore une autre forme de réalisation du dispositif à volet, suivant l'invention, les bords latéraux 2 et 3 du volet 1 sont constitués d'éléments discrets élastiques s 'étendant l'un après l'autre suivant la direction longitudinal des bords latéraux du volet. De tels éléments peuvent, par exemple, former une succession de dents. Ces dents sont, en particulier, réalisés en une matière élastomère, comme du polyuréthanne, et présentent la même dureté que les bords latéraux 2 et 3 du volet 1 de la première et de la deuxième forme de réalisation de l'invention décrites ci-dessus.In yet another embodiment of the shutter device, according to the invention, the lateral edges 2 and 3 of the shutter 1 consist of elastic discrete elements extending one after the other in the longitudinal direction of the lateral edges of the shutter. Such elements can, for example, form a succession of teeth. These teeth are, in particular, made of an elastomeric material, such as polyurethane, and have the same hardness as the lateral edges 2 and 3 of the flap 1 of the first and second embodiments of the invention described above. .
Il est clair que, dans certains cas, l'on peut régler la largeur de la fente 21 de la partie inférieure 13 des chemins de guidage 4 et 5 afin de permettre que les bords latéraux 2 et 3 du volet 1 puissent se dégager par rapport à cette partie inférieure 13 en se déformant quelque peu sous l'action d'une force de traction transversale aux chemins de guidage 4 et 5. Dans un tel cas, il n'est pas nécessaire que les ailes 19 et 20 des chemins de guidage 4 et 5 s'éloignent l'une par rapport à l'autre, comme décrit plus haut.It is clear that, in certain cases, it is possible to adjust the width of the slot 21 of the lower part 13 of the guide tracks 4 and 5 in order to allow the lateral edges 2 and 3 of the flap 1 to be free from to this lower part 13 by deforming somewhat under the action of a tensile force transverse to the guide tracks 4 and 5. In such a case, it is not necessary for the wings 19 and 20 of the guide tracks 4 and 5 move away from each other, as described above.
Lorsque les bords latéraux 2 et 3 se sont alors dégagés des chemins de guidage 4 et 5, et qu'une force de traction élevée est exercée sur ces bords 2 et 3 lors du mouvement ascendant du volet 1, ces bords 2 et 3 se déforment davantage afin de pouvoir se dégager de l'élément de réintroduction 12.When the lateral edges 2 and 3 are then released from the guide tracks 4 and 5, and a high tensile force is exerted on these edges 2 and 3 during the upward movement of the flap 1, these edges 2 and 3 are deformed further so as to be able to free itself from the reintroduction element 12.
Si les bords latéraux 2 et 3 du volet 1 sont pourvus d'une crémaillère qui coopère avec une roue dentée actionnée par lesdits moyens d'entraînement, il est intéressant de prévoir une armature dans ces bords latéraux 2 et 3. L'on prévoit, en particulier, une armature de fibres, notamment de fibres de verre ou de fibres d'aramide. Ces fibres s'étendent suivant la longueur des bords latéraux 2 et 3, dans ces bords 2 et 3 mêmes ou dans la zone du volet 1 à proximité des bords 2 et 3. If the lateral edges 2 and 3 of the flap 1 are provided with a rack which cooperates with a toothed wheel actuated by said drive means, it is advantageous to provide a frame in these lateral edges 2 and 3. It is intended, in particular, a reinforcement of fibers, in particular glass fibers or aramid fibers. These fibers extend along the length of the lateral edges 2 and 3, in these edges 2 and 3 themselves or in the region of the flap 1 near the edges 2 and 3.

Claims

REVENDICATIONS
1. Dispositif à volet destiné à la fermeture d'une baie (6) ou autre ouverture, avec des bords flexibles (2,3) saillant par rapport au plan du volet (1) et coopérant avec des chemins de guidage (4,5), au moins un élément de réintroduction (12) étant prévu permettant de réintroduire lesdits bords (2,3) dans les chemins de guidage (4,5) lorsque ces bords (2,3) se sont dégagés de ces derniers sous l'action d'une force exercée sur ces bords (2,3) dans une direction transversale aux chemins de guidage (4,5), une surface de contact (37) étant formée pendant cette réintroduction entre l'élément de réintroduction (12) et le bord (2,3) correspondant, caractérisé en ce que les bords latéraux (2,3) sont constitués au moins partiellement d'une matière élastomère de sorte que ladite surface de (37) contact accroît lorsque ladite force augmente en répartissant cette force sur la surface de contact (37).1. Shutter device intended for closing a bay (6) or other opening, with flexible edges (2,3) projecting from the plane of the shutter (1) and cooperating with guide tracks (4,5 ), at least one reintroduction element (12) being provided making it possible to reintroduce said edges (2,3) in the guide tracks (4,5) when these edges (2,3) are released from the latter under the action of a force exerted on these edges (2,3) in a direction transverse to the guide tracks (4,5), a contact surface (37) being formed during this reintroduction between the reintroduction element (12) and the corresponding edge (2,3), characterized in that the lateral edges (2,3) consist at least partially of an elastomeric material so that said contact surface (37) increases when said force increases by distributing this force on the contact surface (37).
2. Dispositif à volet suivant la revendication 1, caractérisé en ce que l'élément de réintroduction (12) et le bord (2,3) saillant coopèrent l'un avec l'autre d'une manière telle à ce que, dès que la force susdite exercée sur le bord (2,3) dépasse une valeur déterminée, ladite surface de contact (37) subit un déplacement par rapport à un axe longitudinal du bord saillant (2,3), situé à une certaine distance de la surface de contact (2,3), permettant le dégagement du bord (2,3) par rapport à l'élément de réintroduction (12).2. Shutter device according to claim 1, characterized in that the reintroduction element (12) and the projecting edge (2,3) cooperate with each other in such a way that, as soon as the aforesaid force exerted on the edge (2,3) exceeds a determined value, said contact surface (37) undergoes a displacement relative to a longitudinal axis of the projecting edge (2,3), located at a certain distance from the surface contact (2,3), allowing the clearance of the edge (2,3) relative to the reintroduction element (12).
3. Dispositif suivant la revendication 1 ou 2, caractérisé en ce que lesdits bords (2,3) sont constitués d'un matériau souple et déformable à mémoire de forme de manière à ce que ces bords (2,3) reprennent leur forme originale après une déformation sous l'effet du déplacement susdit de la surface de contact (37).3. Device according to claim 1 or 2, characterized in that said edges (2,3) are made of a flexible and deformable material with shape memory so that these edges (2,3) resume their original shape after a deformation under the effect of the above displacement of the contact surface (37).
4. Dispositif à volet suivant l'une quelconque des revendications 1 à 3, caractérisé en ce que lesdits bords (2,3) présentent une dureté Shore A entre 75° et 100°. 4. Shutter device according to any one of claims 1 to 3, characterized in that said edges (2,3) have a Shore A hardness between 75 ° and 100 °.
5. Dispositif suivant l'une quelconque des revendications 1 à 4, caractérisé en ce que lesdits bords (2,3) sont constitués au moins partiellement de polyuréthanne.5. Device according to any one of claims 1 to 4, characterized in that said edges (2,3) consist at least partially of polyurethane.
6. Dispositif suivant l'une quelconque des revendications 1 à 5, caractérisé en ce que les bords latéraux (2,3) du volet (1) sont pourvus d'une armature en fibres, notamment en fibres de verre ou fibres d'aramide.6. Device according to any one of claims 1 to 5, characterized in that the lateral edges (2,3) of the flap (1) are provided with a fiber reinforcement, in particular glass fibers or aramid fibers .
7. Dispositif suivant la revendication 6, caractérisé en ce que les fibres susdites s'étendent suivant la longueur desdits bords (2,3).7. Device according to claim 6, characterized in that the aforesaid fibers extend along the length of said edges (2,3).
8. Dispositif suivant l'une quelconque des revendications 1 à 7, caractérisé en ce que la dureté des bords (2,3) est choisie d'une manière telle que, lorsqu'une force de traction transversale à la direction longitudinale des chemins de guidage (4,5) est exercée sur lesdits bords (2,3), ces bords (2,3) se dégagent de leur chemin de guidage (4,5) correspondant sans qu'ils soient déformés considérablement, tandis que, lorsque cette force dépasse une certaine valeur, ces bords (2,3) se déforment temporairement davantage afin de pouvoir se dégager de l'élément de réintroduction.8. Device according to any one of claims 1 to 7, characterized in that the hardness of the edges (2,3) is chosen in such a way that, when a tensile force transverse to the longitudinal direction of the paths guide (4,5) is exerted on said edges (2,3), these edges (2,3) disengage from their corresponding guide path (4,5) without being considerably deformed, while, when this force exceeds a certain value, these edges (2,3) temporarily deform further in order to be able to disengage from the reintroduction element.
9. Dispositif suivant l'une quelconque des revendications 1 à 8, caractérisé en ce que l'élément de réintroduction (12) est monté d'une manière élastique sur un support de telle sorte que, lorsque ladite force de traction dépasse la valeur déterminée susmentionnée, l'élément de réintroduction (12) est déplacé temporairement sous l'action du bord (2,3) correspondant afin de permettre que ce dernier se dégage par rapport à l'élément de réintroduction (12).9. Device according to any one of claims 1 to 8, characterized in that the reintroduction element (12) is resiliently mounted on a support so that, when said tensile force exceeds the determined value above, the reintroduction element (12) is temporarily displaced under the action of the corresponding edge (2,3) in order to allow the latter to be released relative to the reintroduction element (12).
10. Dispositif suivant l'une des revendications 1 à 9, caractérisé en ce que l'élément de réintroduction (12) est constitué d'un matériau déformable à mémoire de forme de manière à ce que, lorsque ladite force de traction dépasse la valeur déterminée susmentionnée, l'élément de réintroduction (12) est déformé sous l'action du bord (2,3) correspondant lorsque ce dernier se dégage par rapport à l'élément de réintroduction (12).10. Device according to one of claims 1 to 9, characterized in that the reintroduction element (12) consists of a deformable material with shape memory so that, when said tensile force exceeds the value determined above, the reintroduction element (12) is deformed under the action of the corresponding edge (2,3) when the latter emerges relative to the reintroduction element (12).
11. Dispositif suivant l'une quelconque des revendications 1 à 10, caractérisé en ce qu'il est pourvu d'au moins deux éléments de réintroduction (12) agencés de part et d'autre du plan du volet.11. Device according to any one of claims 1 to 10, characterized in that it is provided with at least two reintroduction elements (12) arranged on either side of the plane of the flap.
12. Dispositif suivant l'une quelconque des revendications 1 à 11, caractérisé en ce que lesdits bords (2,3) sont sensiblement continus. 12. Device according to any one of claims 1 to 11, characterized in that said edges (2,3) are substantially continuous.
13. Dispositif suivant l'une quelconque des revendications 1 à 11, caractérisé en ce que lesdits bords (2,3) sont constitués d'éléments discrets s'étendant l'un après l'autre suivant la direction longitudinal des bords latéraux (2,3) du volet (1).13. Device according to any one of claims 1 to 11, characterized in that said edges (2,3) consist of discrete elements extending one after the other in the longitudinal direction of the lateral edges (2 , 3) of the shutter (1).
14. Dispositif suivant l'une quelconque des revendications 1 à 13, caractérisé en ce que lesdits bords (2,3) font parti du volet (1). 14. Device according to any one of claims 1 to 13, characterized in that said edges (2,3) are part of the flap (1).
EP03707933A 2002-03-20 2003-03-17 Shutter device with flexible lateral edges Expired - Lifetime EP1488068B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE200200197 2002-03-20
BE2002/0197A BE1014712A3 (en) 2002-03-20 2002-03-20 SHUTTER DEVICE WITH FLEXIBLE SIDE EDGES
PCT/BE2003/000043 WO2003078783A1 (en) 2002-03-20 2003-03-17 Shutter device with flexible lateral edges

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EP1488068A1 true EP1488068A1 (en) 2004-12-22
EP1488068B1 EP1488068B1 (en) 2011-03-02

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PT1488068E (en) 2011-04-20
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US20050211398A1 (en) 2005-09-29
BE1014712A3 (en) 2004-03-02
IL164134A0 (en) 2005-12-18
MXPA04009129A (en) 2004-12-07
KR20040105217A (en) 2004-12-14
CA2479548A1 (en) 2003-09-25
DE60336211D1 (en) 2011-04-14
IL164134A (en) 2008-11-26
JP4521191B2 (en) 2010-08-11
CN1650089A (en) 2005-08-03

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