EP2022927B1 - Connection device between a rotating shaft and an apron of interlocking slats of a roller shutter providing in particular an anti-raising security function - Google Patents
Connection device between a rotating shaft and an apron of interlocking slats of a roller shutter providing in particular an anti-raising security function Download PDFInfo
- Publication number
- EP2022927B1 EP2022927B1 EP20080352016 EP08352016A EP2022927B1 EP 2022927 B1 EP2022927 B1 EP 2022927B1 EP 20080352016 EP20080352016 EP 20080352016 EP 08352016 A EP08352016 A EP 08352016A EP 2022927 B1 EP2022927 B1 EP 2022927B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- arm
- connection
- shaft
- rotation
- connection device
- 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.)
- Not-in-force
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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
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/08—Roll-type closures
- E06B9/11—Roller shutters
- E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
- E06B9/171—Rollers therefor; Fastening roller shutters to rollers
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- 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
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
- E06B9/86—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against unauthorised opening
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- 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
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B2009/801—Locking arrangements
- E06B2009/802—Locking arrangements located in or close to shutter box
Definitions
- the essential functions attributed to such a connecting device are to allow the rolling shutter apron to be pulled in slides arranged along the uprights, by wrapping it around the rotary shaft by rotating the latter, when it is desired to disengage opening, and allow to unroll the shutter apron in the opening in these same slides, by rotating the shaft in the opposite direction.
- the device must therefore allow to pull and push the deck by means of the rotary shaft roller shutter and by rotation thereof.
- such a device provides, when the apron is placed in the opening, a safety anti-lift function, preventing the reversibility of the winding of the apron around the shutter shaft or simply the release of the deck in the trunk, by a simple action on the deck, push / pull type, knowing that the rotation of a shutter shaft is not in itself reversible by a direct action on the shaft .
- EP 1 026 363 in the name of the applicant which relates to a safety anti-lift device for roller shutters, comprising a flange secured to the winding shaft of the deck, positioned at the edge of said deck, a link articulated on the flange and the upper blade of the deck , so as to pivot between a radially expanded position obtained in the low position unwound of the apron and a retracted position against the winding shaft obtained during the winding of this apron, and stop means of automatic locking of the connecting rod relative to the flange, in the radially extended position of the latter.
- the present invention provides an alternative to the previous solutions improving the reliability and strength of the connecting device or the distribution of forces transmitted between the shaft and the rolling shutter apron, in particular in its anti-lift or traction of the deck.
- Such a device thanks to the double articulation provided by each arm on the first part, and the joint combined with a degree of freedom in rotation and a degree of freedom in translation, offers a high efficiency and reliability of the anti-rotation function. lifting by the two points of recovery on the first part of the device attached to the shaft, and a high resistance of this anti-lift conferred by a reinforcement stand or stbuttering means provided by the second arm.
- said first and second arms are rigid, respectively.
- said first part of the device connected to the rotary shaft by a complete rigid connection takes the form of a ring adapted to surround the rotary shaft.
- the second articulated portion may advantageously be pre-assembled on the first part before mounting the device on the shaft.
- said ring has an inward projection adapted to penetrate into a housing of the shutter shaft in order to achieve a rotational locking connection between the first part of the device and the shutter shaft. rolling.
- This feature allows a radial self-locking of the first and second parts one over the other, by an axial displacement of the latter, in particular to provide better resistance to radial forces tending to pull the device during a pull on apron.
- the complete rigid connection means that can be disassembled between said first and second arc-shaped portions so as to form an annular ring further comprise an axial abutment between said first and second arc-shaped portions.
- said inward projection of the ring is distributed over each of the first and second arc-shaped portions.
- This feature makes it possible to provide a projection against undercut tending to reinforce the fixing of the first part of the device on the shaft, this projection against undercut being easy to mount avoiding axial threading, because of its dissociation into two parts , one on each ring part.
- the device according to the invention comprises articulation means comprising a degree of freedom in rotation and a degree of freedom in translation combined, between the first end of the second arm and said first part of the device connected to the rotary shaft by a complete rigid connection.
- the device according to the invention comprises articulation means comprising a degree of freedom in rotation and a degree of freedom in translation combined, between the first end of the second arm and said first part of the device. linked to the rotary shaft by a complete rigid connection on the one hand, and between the first end of the first arm and said first part of the device connected to the rotary shaft by a complete rigid connection on the other hand.
- said articulation comprising a degree of freedom in rotation and a degree of freedom in translation combined comprises slide means defined between at least one flange of said first part of the device connected to the rotary shaft by a complete rigid connection. , and the rotating shaft itself.
- said articulation comprising a degree of freedom in rotation and a degree of freedom in translation combined comprises slide means defined in at least one flange of said first part of the device connected to the rotary shaft by a complete rigid connection.
- the first arm adopts a U-shaped curve between the branches of which is housed at least partly the second arm adopting a shape of I or T curved.
- the first and second arms respectively adopt curved shapes in a circular arc.
- the device according to the invention comprises resilient return means constituting an assistance in the deployment of the first arm away from the shaft at the end of rotation of the latter during the rolling shutter apron.
- first arm and the second arm are articulated on said first part of the device connected to the rotary shaft by a complete rigid connection, by first and second joints comprising at least one axis of rotation parallel to the axis. rotation of the shutter shaft, respectively.
- the first arm and the second arm are articulated to one another by a third articulation defining a degree of freedom that is unique in rotation along an axis of rotation parallel to the axis of rotation of the rotation shaft. rolling shutter.
- the linking device 1 represented on the Figures 1 to 8 is intended to link a rotary shaft 2 and an apron 3 with articulated rolling shutter blades 4, the deck 3 being able to wind around the shaft 2 in a first direction of rotation of the shaft 2, and to unfold in a second direction of rotation of the opposite shaft to the first direction, so that the apron 3 releases an opening (not shown) of building or the like, and is inscribed in this opening, respectively.
- the Figures 3 to 5 relate to the unfolding phase of deck 3, and the Figures 6 to 8 relate to the winding phase of the deck 3.
- the shaft 2, the apron 3 with blades 4 are conventional elements of the shutter, as well as the slides, all its elements being known are represented schematically and will not be described in more detail here, with the exception of the tree whose interface with the device 1 has an important aspect in connection with the invention, as will be developed later.
- the first 14 and second 15 parts of the ring 13 are advantageously and respectively in the form of two cylindrical tubular sleeves 30, 31 of circular cross section each having at one of its axial ends a flange 20, 21 perpendicular to the surface of the sleeve 30, 31 and located in a plane transverse to the shaft 2 shutter.
- the flanges 20 and 21 of the sleeves are placed at opposite ends of the sleeves 30, 31 so as to allow the end 8 of the first arm 7 to be housed between these flanges 20 and 21, as shown in FIGS. Figures 1 to 8 .
- the complete rigid connecting means 16 are made removable between the two parts of the ring, adopting for example the shape of a tubular centering interlocking, as shown in FIG. figure 2 , with shoulder so that the cylindrical upper surfaces of the two sleeves are advantageously aligned.
- the link 16 further comprises at least one locking clip 32 of the two parts 14, 15 of the ring 13, as shown in FIG. figure 2 , the clipping being performed during the axial assembly of the two parts of rings 13 on the shaft 2, by axial approximation of these parts towards each other, at the end of nesting.
- the clip 32 can be made in one of the sleeves, by a flexible tongue 33 provided with a return 35 at its end, parallel to the axis of the sleeves 30 and 31 of the ring 13 corresponding to the axis of the 2, and cut for example in the thickness of the sleeve, adapted to associate by clipping in an axial housing 34 made in the other sleeve, also in the thickness thereof, the axial housing 34 having a shoulder 36 as represented on the figure 2 , so that the return 35 of the tongue 33 can cross this shoulder 36 at the end of nesting and resiliently lock behind it to bind the two parts 14 and 15 of the ring 13.
- the ring 13 has a projection 37 facing inwards, able to penetrate into a housing 17 of the roller shutter shaft 2 in order to make a rotational locking connection between the first part of the device 1 and the shaft. 2 of roller shutter.
- the housing 17 generally adopts the shape of an axial groove formed on the surface of the shaft 2, the cross section of which forms a dovetail.
- the projection 37 of the ring 13 preferably extends axially along each of the rings 30, 31, and adopts any suitable cross section capable of penetrating into the housing 17 in order to achieve angular positioning and a rotational locking connection. of the first part 5 of the device around the shaft 2.
- the projection 37 will be indexed angularly with all the organs necessary for the fixed part 5, in particular with the complete rigid connecting means 16 removable between the two parts 14, 15 of the ring 13 so that the projections 37 of these two parts of the ring are axially aligned.
- cross section of the sleeves 30 and 31 can adopt any suitable shape depending on the outer surface of the shaft, for example inner and outer circular, or outer circular and substantially inner polygonal, or other, especially in view to provide a connection in rotation of the fixed part 5 on the shaft 2, alternative or additional to the connection provided by the projection 37.
- the articulation 22 of the end 8 of the first arm 7 on the flanges 20 and 21 of the first part 5 of the device can be advantageously effected by means of two pins 38 extending axially on either side of the arm 7, each of the pins 38 being housed in a corresponding hole formed in each of the flanges 20 and 21, and free to rotate in the hole.
- the two pins 38 define an axis of rotation of the first arm 7 parallel to the axis of rotation of the roller shutter shaft 2 and thus a connection of the arm 7 to the portion 5 to a degree of freedom in rotation.
- the arm 7 is assembled to the fixed part 5 when the two rings 14 and 15 are mounted and associated together by axial approximation of one another, the arm 7 being interposed at this time between the rings.
- the angular position of the hinge holes of the first arm 7 on the part 5 will be indexed relative to the projection 37 and depending on the length of the first arm 7, so that the latter can be fully deployed at the end of unwinding of the apron 3 away from the part 5 rigidly connected to the shaft 2, as shown in FIG. figure 5 to come into abutment deployment with the second arm 10 and thus constitute a non-reversible system from an action on the deck, as will be explained later.
- the diameter of the pins 38 which take the tensile force of the deck, will be determined to resist this traction.
- the first arm 7 advantageously adopts a curved circular arc shape, the length of the rope that it determines between its two ends 8, 29 is a function of the distance between the axis of rotation of the shaft 2 and the plane of the slides 27, and the diameter of the shaft 2.
- the length of the arc constituting the first arm will have to be determined so that once fully deployed, the end 29 of the first arm 7 is preferably substantially in the plane defined by the slides 27, or close to this plane so that this end 29 constitutes a stop for the apron 3 and that it can not be reassembled in the trunk (not shown) by a direct action on it.
- the length of said chord defined by the first arm 7 is a little smaller than a diameter of the shaft 2, representing an arc length slightly less than the half circumference of the shaft, as more particularly shown on figures 4 , 5 and 6 .
- the second arm 10 advantageously adopts a curved circular arc whose first end 11 is articulated on the first part 5 of the connecting device 1 via a hinge 23 defined by two slides or lights 40, preferably in an arc of a circle, formed respectively in the two flanges 20 and 21 of the fixed portion 5, and two pins 41 secured to the second arm 10 and respectively housed in the two slides 40.
- the slides 40 develop along their length parallel to the outer surface of the fixed part 5, or parallel to the outer surface of the sleeves 30 and 31, so that the pins 41 attached to the end 11 of the second arm 10 can move freely in translation along the slideways 40 during the deployment of the first arm 7, or its along the shaft 2.
- the pins 41 extend, like the pins 38 of the first arm 7, axially on either side of the arm 10, each one of the pins 41 being housed in a slide 40, and free in rotation and in translation in the slide so as to define at least one axis of rotation parallel to the axis of rotation of the roller shutter shaft 2.
- the other end 12 of the second arm 10 is articulated on the first arm 7 by the articulation 24, along an axis of articulation parallel to the axis of articulation of the first arm 7 defined by the pins 38 and therefore parallel to the the axis of rotation of the shaft 2.
- the first arm 7 can advantageously adopt a curved U-shape between the branches of which is housed at least in part the second arm adopting a shape of I or curve T, in this case T whose transverse branch of the T just caps the end of the branches of the U, as more particularly represented on the figure 2 this so that the two arms are in a same alignment curve of each other when they are folded along the shaft 2, as shown on the figures 3 , 7, or 8 .
- An advantage of the T-shape of the second arm is to allow the articulated connection 23 of the second arm 10 with the flanges 20 and 21 of the part 5 of the device 1 by means of the two ends respectively of the upper transverse branch of the T, which are aligned in two planes transverse to the axis of rotation of the shaft 2, with the branches of the U, the lower end of the vertical leg of the T being connected to the first arm 7, via the articulated connection 24, to the root branches of the U and between them.
- the articulation 24 to a single degree of freedom in rotation, the end 12 of the second arm 10 on the first arm 7, can be obtained for example by pins 42 or other means of articulation.
- the position of the hinge 24 defined by the pins 42 on the first arm 7 is determined so as to obtain a good counterstain effect, for example about one third of the length of the first arm 7 from the end 8 of this one, as shown in the figures. It should be noted that the position of the articulation 24 defined by the pins 42 on the first arm 7 determines the length of the slideways 40, according to the distance traveled by the end 11 of the second arm 10 during the deployment of the first arm 7.
- the stop of deployment of the first arm formed by the end of the slides 40 farthest from the hinge 22 may be reinforced by an axial rib 45 formed on the sleeves 30 and 31 as shown in FIG. figure 2 , this in order to relieve the pins 41.
- the rib 45 may be the only deployment stopper of the first arm to fully relieve the articulation 23 of the effort taken by the limit stop of the deck, and forming part of the anti-lift of the connecting device 1.
- the connecting device 1 shown in the figures advantageously comprises elastic return means 21 constituting an assistance in the deployment of the first arm 7 away from the shaft 2 at the end of rotation of the latter during the unwinding of the shutter deck 3. rolling.
- These elastic return means may comprise at least one elastic blade, integrated or reported, for example to at least one of the two arm 7, 10, in a material identical to or different from that of the arm or part 5, for example plastic or metal material, in particular having characteristics of elasticity greater than those of the constituent material of the arms or part 5
- These elastic return means 21 may, for example, take the form of a resilient flexible blade 43 placed under the second arm 10 and for example secured to it by one end of the blade 43, so that this blade 43 is bent and put in tension during the winding of the apron 3 and the application of the arms 7 and 10 against the part 5 of the device 1.
- a blade elas tick 43 can be placed under the first arm 7 with the same effect for all of the arms 7 and 10.
- the arms 7 and 10 may have a thickness substantially equal to the radial height of the flanges 20 and 21, itself determined by the radial width of the slideways 40, as shown in the figures, so that the strip of material between a slide 40 and the peripheral radial end of its flange, is sufficiently resistant to the stresses of the second arm 10 in this radial direction, which are relatively low.
- the arms 7 and 10 may advantageously have a recessed structure, as for example represented on the figure 2 , to reduce their weight while maintaining good resistance to buckling and bending.
- the flanges 20 and 21 may not have a constant height all around the sleeves 30 and 31. Indeed, the maximum height of the flanges 20 and 21 will preferably be constant and reached in the area of the joints 22 and 23, for the purpose of resisting its articulations and guiding the arms 7, 10 at the end of folding against the fixed part 5 of the device 1. Outside this zone, the flanges 20 and 21 may advantageously have their height gradually decrease. to zero to reach the upper surface of the sleeves 30 and 31, for example as more particularly shown on the figures 4 , 5 , and 6 , in order to create a starting ramp for winding the apron blades.
- the slides 150 and 151 allow assembly of the ring 113 by axial translation of the two ring portions 114, 115, preferably after positioning the two half-rings 114 and 115 around the flap shaft in the area where the ring 113 must to be fixed to avoid having to thread the ring 113 once mounted, by one end of the shutter shaft.
- the projection 137 facing the inside of the ring 113 will advantageously be distributed over each of the first 114 and second 115 arc-shaped portions in particular in order to provide a larger surface for producing the slide connection at one end of the half rings, as shown on the figure 9 .
- the slide connection on the end 152 of the half-rings comprising the projection 137 can be achieved by an axial groove, for example dovetail on a half-ring 114 or 115 and a complementary axial rib dovetail on the other half ring 115 or 114 respectively.
- the dovetail ribs can be seated on a radial end plane of the half-rings as shown in FIG. figure 9 and the axial assembly of the half-rings 114 and 115 allows locking of the two ends 152 of the half-rings together and simultaneously locking the projection 137 in the corresponding housing of the shaft, if necessary, or if the axial projection 137 has faces against undercut, which is the case in the example shown on the Figures 9 and 10 .
- the complete rigid connecting means 116 that can be disassembled between the two half-rings 114 and 115, so as to form an annular ring 113, furthermore preferably comprise an axial abutment 154 and advantageously means 155 for fastening the half-rings with each other, as depicted on the figure 9 ,
- a pin, pin, clip, or the like may be used.
- the fixing screw is advantageously implanted radially and arranged so as to pass through the two half-rings 114 and 115, and if necessary the wall of the shutter shaft.
- one of the half-rings 114 or 115 may comprise, at the end 152, a tongue 156 intended to be covered by the other half-ring, and that the radial screw may pass through.
- the slide connection can be made on the curved surfaces of the half-rings, for example on the inner surface of one and the outer surface of the other, by overlapping ends, as shown on the figure 10 , so that the inner surface of the ring once assembled is continuous.
- the slider connection at the end 153 may be a simple axial hook type connection.
- the hinges 122 and 123 having a degree of freedom in rotation and a degree of freedom in translation combined comprise slide means 140 defined between at least one flange 120, 121 of the first part 105 the device 101 connected to the rotary shaft by a complete rigid connection, and the rotary shaft itself.
- the lights 140 constituting the slides are no longer closed by the edges themselves, but are closed by the outer surface of the shutter shaft.
- Such a configuration also makes it possible to simplify the mounting of the arms 107 and 110 on the first part 105, the two flanges 120 and 121 of which are secured to one another and releasable relative to each other, due to the structure of the ring 113 in two half-rings in an arc.
- the hinge 122 of the first end 108 of the first arm 107 further comprises a degree of freedom in translation so that the assembly constituted by the two arms 107 and 110 can move in translation on the along the two slides 140 disposed on the two flanges 120 and 121 of the portion 105.
- the hinge 124 between the two arms remains at a single degree of freedom in rotation.
- This configuration provides a simplification of the device 101 by reducing the separate joints, as well as a stronger and easier device to assemble and mount on the shaft.
- the shape of the cross-section of the first arm 107 may be different from the shape of an arc of a circle due in particular to the protuberance caused by the sliding connection of the ends 153 of the ring 113, as shown in FIG. figure 9 , so that the arm 107 can follow as much as possible the profile of the outer surface of the ring 113, when folded against the portion 105.
- the means 121 of elastic return constituting assistance to the deployment of the first arm 107 away from the shaft at the end of rotation of the latter during the unwinding of the rolling shutter apron can take the form of two flexible flexible blades arranged with on both sides of the first arm 107 and along it, as shown on the Figures 9 and 10 , one end of the blades being fixed on the first arm and the other end bearing on a lug 158 formed on the fixed part 105.
- the constituent elements of the first exemplary embodiment of a connecting device according to the invention can advantageously be made of rigid plastic material, preferably molded, except as specified in the description of the examples below. detailed top.
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Description
La présente invention se rapporte à un dispositif de liaison entre un arbre rotatif et un tablier à lames articulées de volet roulant, le tablier étant apte à s'enrouler autour de l'arbre selon un premier sens de rotation de l'arbre, et à se dérouler selon un deuxième sens de rotation de l'arbre opposé au premier sens, afin que le tablier dégage une ouverture de bâtiment ou analogue, et s'inscrive dans l'ouverture, respectivement, le dispositif de liaison permettant d'assurer une fonction d'anti-relevage et une fonction de traction du tablier et comprenant :
- une première partie liée à l'arbre rotatif par une liaison rigide complète,
- une deuxième partie articulée sur la première partie et comportant :
- un premier bras :
- articulé à une première de ses extrémités sur ladite première partie,
- adoptant une forme apte à sensiblement circonscrire sur la longueur du premier bras une partie au moins de la surface extérieure périphérique de l'arbre, et
- comportant à la deuxième de ses extrémités des moyens de liaison avec le tablier du volet roulant.
- un premier bras :
- a first part linked to the rotary shaft by a complete rigid connection,
- a second part articulated on the first part and comprising:
- a first arm:
- articulated at a first of its ends on said first part,
- adopting a shape capable of substantially circumscribing along the length of the first arm at least part of the peripheral outer surface of the shaft, and
- having at the second of its ends means of connection with the apron of the shutter.
- a first arm:
Les fonctions essentielles attribuées à un tel dispositif de liaison sont de permettre la traction du tablier de volet roulant dans des glissières disposées le long des montants, en l'enroulant autour de l'arbre rotatif par rotation de ce dernier, lorsqu'on souhaite dégager l'ouverture, et de permettre de dérouler le tablier de volet dans l'ouverture dans ces mêmes glissières, par rotation de l'arbre en sens inverse. Le dispositif doit donc permettre de tracter et de pousser le tablier au moyen de l'arbre rotatif de volet roulant et par rotation de celui-ci. En outre, de manière avantageuse, un tel dispositif confère, lorsque le tablier est placé dans l'ouverture, une fonction anti-relevage de sécurité, en empêchant la réversibilité de l'enroulement du tablier autour de l'arbre de volet roulant ou simplement le dégagement du tablier dans le coffre, par une simple action sur le tablier, de type poussée/traction, sachant que la rotation d'un arbre de volet roulant n'est en elle-même pas réversible par une action directe sur l'arbre.The essential functions attributed to such a connecting device are to allow the rolling shutter apron to be pulled in slides arranged along the uprights, by wrapping it around the rotary shaft by rotating the latter, when it is desired to disengage opening, and allow to unroll the shutter apron in the opening in these same slides, by rotating the shaft in the opposite direction. The device must therefore allow to pull and push the deck by means of the rotary shaft roller shutter and by rotation thereof. In addition, advantageously, such a device provides, when the apron is placed in the opening, a safety anti-lift function, preventing the reversibility of the winding of the apron around the shutter shaft or simply the release of the deck in the trunk, by a simple action on the deck, push / pull type, knowing that the rotation of a shutter shaft is not in itself reversible by a direct action on the shaft .
L'art antérieur enseigne de tels dispositifs : on connaît par exemple avec le document
On connaît en outre le document
La présente invention propose une alternative aux solutions précédentes améliorant la fiabilité et la résistance du dispositif de liaison ou la répartition des efforts transmis entre l'arbre et le tablier de volet roulant, en particulier dans sa fonction anti-relevage ou de traction du tablier.The present invention provides an alternative to the previous solutions improving the reliability and strength of the connecting device or the distribution of forces transmitted between the shaft and the rolling shutter apron, in particular in its anti-lift or traction of the deck.
Plus précisément, l'invention consiste, à partir du domaine d'application défini plus haut, en ce que la deuxième partie du dispositif de liaison comprend en outre :
- un deuxième bras :
- articulé à une première de ses extrémités sur ladite première partie,
- adoptant une forme apte à sensiblement circonscrire sur la longueur du deuxième bras une partie au moins de la surface extérieure périphérique de l'arbre, et
- articulé à la deuxième de ses extrémités sur ledit premier bras,
- l'un au moins desdits premier ou deuxième bras étant articulé sur ladite première partie ou l'un sur l'autre par une articulation comportant un degré de liberté en rotation et un degré de liberté en translation combinés.
- a second arm:
- articulated at a first of its ends on said first part,
- adopting a shape capable of substantially circumscribing along the length of the second arm at least a portion of the peripheral outer surface of the shaft, and
- articulated at the second of its ends on said first arm,
- at least one of said first or second arms being hinged to said first part or to one another by a joint having a degree of freedom in rotation and a degree of freedom in translation combined.
Un tel dispositif, grâce à la double articulation assurée par chacun des bras sur la première partie, et l'articulation combinée à un degré de liberté en rotation et un degré de liberté en translation, offre une grande efficacité et fiabilité de la fonction anti-relevage par les deux points de reprise sur la première partie du dispositif fixée à l'arbre, ainsi qu'une grande résistance de cet anti-relevage conférée par un moyen de béquille de renfort ou de contreboutant assuré par le deuxième bras.Such a device, thanks to the double articulation provided by each arm on the first part, and the joint combined with a degree of freedom in rotation and a degree of freedom in translation, offers a high efficiency and reliability of the anti-rotation function. lifting by the two points of recovery on the first part of the device attached to the shaft, and a high resistance of this anti-lift conferred by a reinforcement stand or stbuttering means provided by the second arm.
Selon une caractéristique avantageuse, lesdits premier et deuxième bras sont rigides, respectivement.According to an advantageous characteristic, said first and second arms are rigid, respectively.
Selon une caractéristique avantageuse, ladite première partie du dispositif liée à l'arbre rotatif par une liaison rigide complète adopte la forme d'une bague apte à entourer l'arbre rotatif.According to an advantageous characteristic, said first part of the device connected to the rotary shaft by a complete rigid connection takes the form of a ring adapted to surround the rotary shaft.
Selon une caractéristique avantageuse, ladite bague apte à entourer l'arbre rotatif comporte :
- une première partie annulaire rigide,
- une deuxième partie annulaire rigide juxtaposée axialement à ladite première partie annulaire, et
- des moyens de liaison rigide complète démontable entre lesdites première et deuxième parties annulaires mises bout à bout axialement.
- a first rigid annular portion,
- a second rigid annular portion juxtaposed axially with said first annular portion, and
- complete rigid connection means dismountable between said first and second annular parts placed end to end axially.
Selon une caractéristique avantageuse alternative à la précédente, ladite bague apte à entourer l'arbre rotatif comporte :
- une première partie adoptant la forme sensiblement d'un premier arc,
- une deuxième partie adoptant la forme sensiblement d'un deuxième arc, complémentaire du premier arc pour former la bague entourant l'arbre rotatif,
- des moyens de liaison rigide complète démontable entre lesdites première et deuxième parties en forme d'arc en sorte de former une bague annulaire.
- a first part adopting the shape substantially of a first arc,
- a second portion adopting the shape substantially of a second arc, complementary to the first arc to form the ring surrounding the rotary shaft,
- complete rigid connection means dismountable between said first and second arc-shaped portions so as to form an annular ring.
Cette alternative permet de monter le dispositif sur l'arbre en évitant d'avoir à l'enfiler sur ce dernier par une de ses extrémités. La deuxième partie articulée peut avantageusement être pré assemblée sur la première partie avant le montage du dispositif sur l'arbre.This alternative allows to mount the device on the tree by avoiding having to put on the latter by one of its ends. The second articulated portion may advantageously be pre-assembled on the first part before mounting the device on the shaft.
Selon une caractéristique avantageuse, ladite bague comporte une saillie vers l'intérieur, apte à pénétrer dans un logement de l'arbre de volet roulant en vue de réaliser une liaison par blocage en rotation entre la première partie du dispositif et l'arbre de volet roulant.According to an advantageous characteristic, said ring has an inward projection adapted to penetrate into a housing of the shutter shaft in order to achieve a rotational locking connection between the first part of the device and the shutter shaft. rolling.
Selon une caractéristique avantageuse, les moyens de liaison rigide complète démontable entre lesdites première et deuxième parties de la bague, en forme d'arc, en sorte de former une bague annulaire comprennent :
- une première glissière axiale,
- une deuxième glissière axiale,
- a first axial slide,
- a second axial slide,
Cette caractéristique autorise un auto verrouillage radial des première et deuxième parties l'une sur l'autre, par un déplacement axial de ces dernières, afin notamment d'offrir une meilleure résistance aux efforts radiaux tendant à arracher le dispositif lors d'une traction sur le tablier.This feature allows a radial self-locking of the first and second parts one over the other, by an axial displacement of the latter, in particular to provide better resistance to radial forces tending to pull the device during a pull on apron.
Selon une caractéristique avantageuse, les moyens de liaison rigide complète démontable entre lesdites première et deuxième parties en forme d'arc en sorte de former une bague annulaire comprennent en outre une butée axiale entre lesdites première et deuxième parties en forme d'arc.According to an advantageous characteristic, the complete rigid connection means that can be disassembled between said first and second arc-shaped portions so as to form an annular ring further comprise an axial abutment between said first and second arc-shaped portions.
Selon une caractéristique avantageuse, ladite saillie vers l'intérieur de la bague est répartie sur chacune des première et deuxième parties en forme d'arc.According to an advantageous characteristic, said inward projection of the ring is distributed over each of the first and second arc-shaped portions.
Cette caractéristique permet d'offrir une saillie en contre dépouille tendant à renforcer la fixation de la première partie du dispositif sur l'arbre, cette saillie en contre dépouille étant aisée à monter en évitant un enfilage axial, du fait de sa dissociation en deux parties, une sur chaque partie de bague.This feature makes it possible to provide a projection against undercut tending to reinforce the fixing of the first part of the device on the shaft, this projection against undercut being easy to mount avoiding axial threading, because of its dissociation into two parts , one on each ring part.
Selon une caractéristique avantageuse, le dispositif selon l'invention comprend des moyens d'articulation comportant un degré de liberté en rotation et un degré de liberté en translation combinés, entre la première extrémité du deuxième bras et ladite première partie du dispositif liée à l'arbre rotatif par une liaison rigide complète.According to an advantageous characteristic, the device according to the invention comprises articulation means comprising a degree of freedom in rotation and a degree of freedom in translation combined, between the first end of the second arm and said first part of the device connected to the rotary shaft by a complete rigid connection.
Selon une caractéristique avantageuse alternative de la précédente, le dispositif selon l'invention comprend des moyens d'articulation comportant un degré de liberté en rotation et un degré de liberté en translation combinés, entre la première extrémité du deuxième bras et ladite première partie du dispositif liée à l'arbre rotatif par une liaison rigide complète d'une part, et entre la première extrémité du premier bras et ladite première partie du dispositif liée à l'arbre rotatif par une liaison rigide complète d'autre part.According to an advantageous alternative characteristic of the preceding, the device according to the invention comprises articulation means comprising a degree of freedom in rotation and a degree of freedom in translation combined, between the first end of the second arm and said first part of the device. linked to the rotary shaft by a complete rigid connection on the one hand, and between the first end of the first arm and said first part of the device connected to the rotary shaft by a complete rigid connection on the other hand.
Selon une caractéristique avantageuse, ladite articulation comportant un degré de liberté en rotation et un degré de liberté en translation combinés comprend des moyens de glissière définis entre au moins un rebord de ladite première partie du dispositif liée à l'arbre rotatif par une liaison rigide complète, et l'arbre rotatif lui-même.According to an advantageous characteristic, said articulation comprising a degree of freedom in rotation and a degree of freedom in translation combined comprises slide means defined between at least one flange of said first part of the device connected to the rotary shaft by a complete rigid connection. , and the rotating shaft itself.
Selon une caractéristique avantageuse alternative de la précédente, ladite articulation comportant un degré de liberté en rotation et un degré de liberté en translation combinés comprend des moyens de glissière définis dans au moins un rebord de ladite première partie du dispositif liée à l'arbre rotatif par une liaison rigide complète.According to an advantageous alternative characteristic of the preceding one, said articulation comprising a degree of freedom in rotation and a degree of freedom in translation combined comprises slide means defined in at least one flange of said first part of the device connected to the rotary shaft by a complete rigid connection.
Selon une caractéristique avantageuse, le premier bras adopte une forme de U courbe entre les branches duquel est logé au moins en partie le deuxième bras adoptant une forme de I ou de T courbe.According to an advantageous characteristic, the first arm adopts a U-shaped curve between the branches of which is housed at least partly the second arm adopting a shape of I or T curved.
Selon une caractéristique avantageuse, les premier et deuxième bras adoptent respectivement des formes courbes en arc circulaire.According to an advantageous characteristic, the first and second arms respectively adopt curved shapes in a circular arc.
Selon une caractéristique avantageuse, le dispositif selon l'invention comprend des moyens de rappel élastique constituant une assistance au déploiement du premier bras à l'écart de l'arbre en fin de rotation de ce dernier lors du déroulement du tablier de volet roulant.According to an advantageous characteristic, the device according to the invention comprises resilient return means constituting an assistance in the deployment of the first arm away from the shaft at the end of rotation of the latter during the rolling shutter apron.
Selon une caractéristique avantageuse, le premier bras et le deuxième bras sont articulés sur ladite première partie du dispositif liée à l'arbre rotatif par une liaison rigide complète, par des première et deuxième articulations comportant au moins un axe de rotation parallèle à l'axe de rotation de l'arbre de volet roulant, respectivement.According to an advantageous characteristic, the first arm and the second arm are articulated on said first part of the device connected to the rotary shaft by a complete rigid connection, by first and second joints comprising at least one axis of rotation parallel to the axis. rotation of the shutter shaft, respectively.
Selon une caractéristique avantageuse, le premier bras et le deuxième bras sont articulés l'un sur l'autre par une troisième articulation définissant un degré de liberté unique en rotation selon un axe de rotation parallèle à l'axe de rotation de l'arbre de volet roulant.According to an advantageous characteristic, the first arm and the second arm are articulated to one another by a third articulation defining a degree of freedom that is unique in rotation along an axis of rotation parallel to the axis of rotation of the rotation shaft. rolling shutter.
D'autres caractéristiques et avantages apparaîtront à la lecture qui suit de deux exemples de modes de réalisation d'un dispositif selon l'invention de liaison entre un arbre rotatif et un tablier à lamés articulées de volet roulant, accompagnée des dessins annexés, exemples donnés à titre illustratif non limitatif.
- La
figure 1 représente une vue en perspective d'un premier exemple de mode de réalisation d'un dispositif de liaison selon l'invention associé à un arbre et un tablier de volet roulant. - La
figure 2 représente une vue en perspective éclatée du dispositif de liaison seul de l'exemple de lafigure 1 . - La
figure 3 représente schématiquement une vue de bout de l'exemple de lafigure 1 en position de début de déroulement du tablier. - La
figure 4 représente schématiquement une vue de bout de l'exemple de lafigure 1 en position voisine de la fin du déroulement du tablier. - La
figure 5 représente schématiquement une vue de bout de l'exemple de lafigure 1 en position finale de déroulement du tablier et d'anti-relevage de ce dernier. - La
figure 6 représente schématiquement une vue de bout de l'exemple de lafigure 1 en position de début d'enroulement du tablier. - La
figure 7 représente schématiquement une vue de bout de l'exemple de lafigure 1 en position voisine de la fin de l'enroulement du tablier. - La
figure 8 représente une vue de bout de l'exemple de lafigure 1 en position finale enroulée du tablier. - La
figure 9 représente une vue en perspective éclatée d'un deuxième exemple de mode de réalisation d'un dispositif de liaison seul selon l'invention. - La
figure 10 représente une vue de bout du dispositif de liaison de l'exemple de lafigure 9 .
- The
figure 1 is a perspective view of a first exemplary embodiment of a connecting device according to the invention associated with a shaft and a rolling shutter apron. - The
figure 2 represents an exploded perspective view of the connecting device alone of the example of thefigure 1 . - The
figure 3 schematically represents an end view of the example of thefigure 1 in the beginning position of unwinding of the apron. - The
figure 4 schematically represents an end view of the example of thefigure 1 in a position close to the end of the unfolding of the apron. - The
figure 5 schematically represents an end view of the example of thefigure 1 in the end position of unwinding of the apron and anti-lift of the latter. - The
figure 6 schematically represents an end view of the example of thefigure 1 in the winding start position of the apron. - The
figure 7 schematically represents an end view of the example of thefigure 1 in a position close to the end of the winding of the apron. - The
figure 8 represents an end view of the example of thefigure 1 in final wound position of the apron. - The
figure 9 is an exploded perspective view of a second exemplary embodiment of a single connecting device according to the invention. - The
figure 10 represents an end view of the connecting device of the example of thefigure 9 .
Le dispositif 1 de liaison représenté sur les
Le dispositif 1 de liaison représenté comprend :
une première 5 partie liée à l'arbre rotatif 2 par une liaison rigide complète qui sera décrite plus loin,une deuxième 6 partie articulée sur la première 5 partie et comportant :un premier 7 bras de préférence rigide :- articulé à une première 8 de ses extrémités sur la première 5 partie, et définissant ainsi une
articulation 22, - adoptant une forme apte à sensiblement circonscrire sur la longueur du
premier 7 bras une partie au moins de lasurface 28 extérieure périphérique de l'arbre 2, et - comportant à la deuxième 29 de ses extrémités des moyens de
liaison 9 avec le tablier 3 du volet roulant,
- articulé à une première 8 de ses extrémités sur la première 5 partie, et définissant ainsi une
un deuxième 10 bras de préférence rigide :- articulé à une première 11 de ses extrémités sur la première 5 partie du dispositif 1 de liaison,
- adoptant une forme apte à sensiblement circonscrire sur la longueur du deuxième 10 bras une partie au moins de la surface extérieure 28 périphérique de l'arbre 2, et
- articulé à la deuxième 12 de ses extrémités sur le
premier 7 bras, définissant unearticulation 24,
- le deuxième 10 bras étant avantageusement articulé sur la première 5 partie du dispositif de
liaison 1 par unearticulation 23 comportant un degré de liberté en rotation et un degré de liberté en translation combinés.
- a first part linked to the
rotary shaft 2 by a complete rigid connection which will be described later, - a second part articulated on the first part and comprising:
- a first 7 preferably rigid arm:
- articulated at a first 8 of its ends on the first part, and thus defining a
hinge 22, - adopting a shape adapted to substantially circumscribe, along the length of the
first arm 7, at least part of the outerperipheral surface 28 of theshaft 2, and - having at the second 29 of its
ends connecting means 9 with thedeck 3 of the shutter,
- articulated at a first 8 of its ends on the first part, and thus defining a
- a second, preferably rigid arm:
- articulated at a first 11 of its ends on the
first part 5 of the connectingdevice 1, - adopting a shape adapted to substantially circumscribe along the length of the second arm at least a portion of the outer
peripheral surface 28 of theshaft 2, and - articulated at the second 12 of its ends on the
first arm 7, defining ahinge 24,
- articulated at a first 11 of its ends on the
- a first 7 preferably rigid arm:
- the second arm being advantageously articulated on the first part of the connecting
device 1 by ahinge 23 having a degree of freedom in rotation and a degree of freedom in translation combined.
La première 5 partie du dispositif 1, liée à l'arbre 2 rotatif par une liaison rigide complète adopte avantageusement la forme d'une bague 13 apte à entourer l'arbre rotatif, et comportant par exemple :
une première 14 partie annulaire rigide,- une deuxième 15 partie annulaire rigide juxtaposée axialement à la première 14 partie annulaire, et
- des moyens de
liaison 16 rigide complète démontable entre les première 14 et deuxième 15 parties annulaires mises bout à bout axialement.
- a first rigid
annular portion 14, - a second rigid annular portion juxtaposed axially with the first annular portion, and
- complete rigid connecting
means 16 removable between the first 14 and second 15 annular parts placed end to end axially.
Les première 14 et deuxième 15 parties de la bague 13 se présentent avantageusement et respectivement sous la forme de deux manchons 30, 31 tubulaires cylindriques à section transversale circulaire comportant chacun à une de ses extrémités axiales un rebord 20, 21 perpendiculaire à la surface du manchon 30, 31 et situé dans un plan transversal à l'arbre 2 de volet roulant. Les rebords 20 et 21 des manchons sont placés aux extrémités opposées des manchons 30, 31 en sorte de permettre le logement de l'extrémité 8 du premier 7 bras entre ces rebords 20 et 21, comme représenté sur les
A l'autre extrémité des manchons 30, 31, sont réalisés les moyens de liaison 16 rigide complète démontable entre les deux parties de la bague, adoptant par exemple la forme d'un emboîtement à centrage tubulaire, comme représenté sur la
La bague 13 comporte une saillie 37 tournée vers l'intérieur, apte à pénétrer dans un logement 17 de l'arbre 2 de volet roulant en vue de réaliser une liaison par blocage en rotation entre la première 5 partie du dispositif 1 et l'arbre 2 de volet roulant. Comme représenté sur la
Il est à noter que la section transversale des manchons 30 et 31 peut adopter toute forme appropriée en fonction de la surface extérieure de l'arbre, par exemple circulaire intérieure et extérieure, ou circulaire extérieure et sensiblement polygonale intérieure, ou autre, notamment en vue d'offrir une liaison en rotation de la partie fixe 5 sur l'arbre 2, alternative ou supplémentaire à la liaison assurée par la saillie 37.It should be noted that the cross section of the
L'articulation 22 de l'extrémité 8 du premier bras 7 sur les rebords 20 et 21 de la première partie 5 du dispositif peut être avantageusement effectuée au moyen de deux pions 38 s'étendant axialement de part et d'autre du bras 7, chacun des pions 38 étant logé dans un trou correspondant formé dans chacun des rebords 20 et 21, et libre en rotation dans le trou. Les deux pions 38 définissent un axe de rotation du premier bras 7 parallèle à l'axe de rotation de l'arbre 2 de volet roulant et donc une liaison du bras 7 à la partie 5 à un degré de liberté en rotation. Le bras 7 est assemblé à la partie fixe 5 lorsque les deux bagues 14 et 15 sont montées et associées ensemble par rapprochement axial l'une de l'autre, le bras 7 étant interposé à ce moment entre les bagues. La position angulaire des trous d'articulation du premier bras 7 sur la partie 5 sera indexée par rapport à la saillie 37 et en fonction de la longueur du premier bras 7, en sorte que ce dernier puisse se déployer entièrement en fin de déroulement du tablier 3 à l'écart de la partie 5 liée rigidement à l'arbre 2, comme représenté sur la
Il est à noter que sur les
Le premier bras 7 adopte avantageusement une forme courbe en arc circulaire, dont la longueur de la corde qu'il détermine entre ses deux extrémités 8, 29 est fonction de la distance séparant l'axe de rotation de l'arbre 2 et le plan des glissières 27, et du diamètre de l'arbre 2. La longueur de l'arc constitutif du premier bras devra être déterminée en sorte qu'une fois déployé entièrement, l'extrémité 29 du premier bras 7 se trouve de préférence sensiblement dans le plan défini par les glissières 27, ou proche de ce plan en sorte que cette extrémité 29 constitue une butée pour le tablier 3 et que ce dernier ne puisse ainsi pas être remonté dans le coffre (non représenté) par une action directe sur celui-ci. Dans l'exemple représenté, la longueur de ladite corde définie par le premier bras 7 est un peu inférieure à un diamètre de l'arbre 2, représentant une longueur d'arc légèrement inférieure à la demi circonférence de l'arbre, comme plus particulièrement montré sur les
Le deuxième bras 10 adopte avantageusement une forme courbe en arc circulaire dont la première extrémité 11 est articulée sur la première 5 partie du dispositif 1 de liaison via une articulation 23 définie par deux glissières ou lumières 40 de préférence en arc de cercle, formées respectivement dans les deux rebords 20 et 21 de la partie fixes 5, et par deux pions 41 solidaires du deuxième bras 10 et logés respectivement dans les deux glissières 40. Les glissières 40 se développent sur leur longueur parallèlement à la surface extérieure de la partie fixe 5, soit parallèlement à la surface extérieure des manchons 30 et 31, afin que les pions 41 fixés à l'extrémité 11 du deuxième bras 10 puissent se déplacer librement en translation le long des glissières 40 au cours du déploiement du premier bras 7, ou de son repliement le long de l'arbre 2. Les pions 41 s'étendent, à l'instar des pions 38 du premier bras 7, axialement de part et d'autre du bras 10, chacun des pions 41 étant logé dans une glissière 40, et libre en rotation et en translation dans la glissière en sorte de définir au moins un axe de rotation parallèle à l'axe de rotation de l'arbre 2 de volet roulant.The
L'autre extrémité 12 du deuxième bras 10 est articulée sur le premier bras 7 par l'articulation 24, selon un axe d'articulation parallèle à l'axe d'articulation du premier bras 7 défini par les pions 38 et parallèle donc à l'axe de rotation de l'arbre 2. A cet effet, le premier 7 bras peut avantageusement adopter une forme de U courbe entre les branches duquel est logé au moins en partie le deuxième 10 bras adoptant une forme de I ou de T courbe, en l'occurrence de T dont la branche transversale du T vient coiffer l'extrémité des branches du U, comme plus particulièrement représenté sur la
L'articulation 24 à un degré unique de liberté en rotation, de l'extrémité 12 du deuxième bras 10 sur le premier 7 bras, peut être obtenue par exemple par des pions 42 ou tout autre moyen d'articulation. La position de l'articulation 24 définie par les pions 42 sur le premier bras 7 est déterminée de façon à obtenir un bon effet de contreboutant, par exemple environ à un tiers de la longueur du premier bras 7 à partir de l'extrémité 8 de celui-ci, comme représenté sur les figures. Il est à noter que la position de l'articulation 24 définie par les pions 42 sur le premier bras 7 détermine la longueur des glissières 40, selon la distance que parcours l'extrémité 11 du deuxième bras 10 lors du déploiement du premier bras 7.The
Le déploiement du premier bras 7 entraîne celui du deuxième bras 10, et ce dernier constitue la butée de déploiement du premier bras 7 lorsque les pions ou pivots 42 arrivent en fin de glissières 40. La position angulaire des glissières 40 sur les rebords 20 et 21 par rapport à l'articulation 22 du premier bras 7 définie par les pions 38 est donc teiie que :
- l'extrémité des glissières 40 la plus proche de l'articulation 22 permettra l'alignement des
bras 7 et 10 contre la partie fixe 5, et plus particulièrement les manchons 30et 31, lorsque le tablier 3 est enroulé autour de l'arbre 2, et - l'extrémité des glissières 40 la plus éloignée de l'articulation 22 permettra de positionner l'extrémité 29 du
premier bras 7, en constituant une butée de déploiement dece bras 7, lorsque le tablier 3 est totalement déroulé et en butée au bas 18 de l'ouverture ou analogue, comme représenté sur lafigure 5 .
- the end of the
slides 40 closest to thehinge 22 will allow the alignment of the 7 and 10 against thearms fixed part 5, and more particularly the 30 and 31, when thesleeves apron 3 is wound around theshaft 2 , and - the end of the
slideways 40 farthest from thehinge 22 will position theend 29 of thefirst arm 7, constituting a stop of deployment of thearm 7, when theapron 3 is fully unwound and abut at the bottom 18 opening or the like, as shown on thefigure 5 .
Il est à noter que la butée de fin de déploiement du premier bras constituée par l'extrémité des glissières 40 la plus éloignée de l'articulation 22 peut être renforcée par une nervure axiale 45 formée sur les manchons 30 et 31 comme représenté sur la
L'extrémité 29 du premier bras 7, à laquelle est attachée la lame 4 supérieure du tablier 3 de manière démontable, et formée de toute sorte connue afin que cette lame 4 puisse être solidaire de l'extrémité au moyen d'une liaison à un degré de liberté en rotation, par exemple par une liaison à crochet comme représenté sur les figures.The
Le dispositif de liaison 1 représenté sur les figures comprend avantageusement des moyens 21 de rappel élastique constituant une assistance au déploiement du premier 7 bras à l'écart de l'arbre 2 en fin de rotation de ce dernier lors du déroulement du tablier 3 de volet roulant. Ces moyens de rappel élastique peuvent comprendre au moins une lame élastique, intégrée ou rapportée, par exemple à l'un au moins des deux bras 7, 10, en un matériau identique à, ou différent de celui des bras ou de la partie 5, par exemple matière plastique ou métallique, notamment possédant des caractéristiques d'élasticité supérieures à celles du matériau constitutif des bras ou de la partie 5. Ces moyens de rappel élastique 21 peuvent par exemple adopter la forme d'une lame flexible élastique 43 droite, placée sous le deuxième bras 10 et par exemple solidaire de celui-ci par une des extrémités de la lame 43, en sorte que cette lame 43 soit courbée et mise en tension lors de l'enroulement du tablier 3 et de l'application des bras 7 et 10 contre la partie 5 du dispositif 1. Lors du déroulement du tablier 3, et en fin de ce déroulement, la lame 43 élastique se détendra visant à écarter de l'arbre 2 l'extrémité 12 du deuxième bras 10, entraînant ainsi l'écartement du premier bras 7 grâce à la liaison articulée 24. Il est à noter que de manière alternative ou additionnelle, une lame élastique 43 peut être placée sous le premier bras 7 avec le même effet pour l'ensemble des bras 7 et 10.The connecting
Les bras 7 et 10 peuvent avoir une épaisseur sensiblement égale à la hauteur radiale des rebords 20 et 21, elle-même déterminée par la largeur radiale des glissières 40, comme représenté sur les figures, en sorte que la bande de matière comprise entre une glissière 40 et l'extrémité radiale périphérique de son rebord, soit suffisamment résistante aux sollicitations du deuxième bras 10 selon cette direction radiale, qui sont relativement faibles. Les bras 7 et 10 pourront avantageusement posséder une structure évidée, comme par exemple représenté sur la
Il est à noter que les rebords 20 et 21 pourront ne pas avoir une hauteur constante sur tout le pourtour des manchons 30 et 31. En effet, la hauteur maximale des rebords 20 et 21 sera de préférence constante et atteinte dans la zone des articulations 22 et 23, dans un but de résistance de ses articulations et de guidage des bras 7, 10 en fin de repliement contre la partie fixe 5 du dispositif 1. En dehors de cette zone, les rebords 20 et 21 pourront avantageusement voir leur hauteur diminuer progressivement jusqu'à s'annuler pour rejoindre la surface supérieure des manchons 30 et 31, par exemple comme plus particulièrement représenté sur les
Le deuxième exemple de mode de réalisation d'un dispositif selon l'invention va maintenant être décrit avec l'aide des
Les références numériques affectées au deuxième exemple sont similaires à celles du premier exemple pour les éléments de fonctions identiques mais additionnées du nombre 100. Il est donc renvoyé à la description du premier exemple pour ces éléments sauf indication ou précision contraire ci-dessous. Ce deuxième exemple de mode de réalisation est dans l'ensemble similaire au premier exemple et s'en différencie par les deux caractéristiques essentielles avantageuses suivantes ainsi que par les caractéristiques structurelles du dispositif qui en découlent :
- 1) La bague 113 de la première partie 105 du dispositif 101 n'est plus composée de deux parties annulaires mises bout à bout, mais comporte :
- une première partie 114 adoptant la forme sensiblement d'un premier arc, par exemple un arc de cercle,
- une deuxième partie 115 adoptant la forme sensiblement d'un deuxième arc, par exemple un arc de cercle, complémentaire du premier arc pour former la bague 113 entourant l'arbre rotatif, par exemple sensiblement égal en longueur au premier arc de cercle,
- des moyens de liaison 116 rigide complète démontable entre les première 114 et deuxième 115 parties en forme d'arc en sorte de former une bague annulaire ;
- 2) Le dispositif 101 comprend des moyens d'articulation 122, 123 comportant un degré de liberté en rotation et un degré de liberté en translation combinés, entre la première 111 extrémité du deuxième 110 bras et la première 105 partie du dispositif 101 liée à l'arbre rotatif par une liaison rigide complète d'une part, et entre la première 108 extrémité du premier 107 bras et la première 105 partie du dispositif 101 liée à l'arbre rotatif par une liaison rigide complète, d'autre part.
- 1) The ring 113 of the
first part 105 of thedevice 101 is no longer composed of two annular parts placed end to end, but comprises:- a
first portion 114 adopting the shape substantially of a first arc, for example an arc of a circle, - a
second portion 115 adopting the shape substantially of a second arc, for example a circular arc, complementary to the first arc to form the ring 113 surrounding the rotary shaft, for example substantially equal in length to the first arc of a circle, - complete rigid connecting means 116 removable between the first 114 and second 115 arc-shaped portions so as to form an annular ring;
- a
- 2) The
device 101 comprises hinge means 122, 123 having a combined degree of freedom of rotation and a degree of freedom of translation between the first end of thesecond arm 110 and the first portion of thedevice 101 connected to the rotating shaft by a complete rigid connection on the one hand, and between thefirst end 108 of the first arm and the first 105 part of thedevice 101 connected to the rotary shaft by a complete rigid connection, on the other hand.
Il y a lieu de préciser que les moyens de liaison 116 rigide complète démontable entre les première 114 et deuxième 115 parties de la bague 113, en forme d'arc, en sorte de former une bague annulaire comprennent en outre avantageusement :
une première 150 glissière axiale,une deuxième 151 glissière axiale,
- a first 150 axial slide,
- a second 151 axial slide,
Les glissières 150 et 151 permettent un assemblage de la bague 113 par translation axiale des deux parties 114, 115 de bague, de préférence après positionnement des deux demi bagues 114 et 115 autour de l'arbre de volet dans la zone où la bague 113 doit être fixée afin d'éviter d'avoir à enfiler la bague 113 une fois montée, par une extrémité de l'arbre de volet roulant. La saillie 137 tournée vers l'intérieur de la bague 113 sera avantageusement répartie sur chacune des première 114 et deuxième 115 parties en forme d'arc notamment afin d'offrir une surface plus grande pour la réalisation de la liaison par glissière à une extrémité des demi bagues, comme représenté sur la
La liaison par glissière sur l'extrémité 152 des demi bagues comportant la saillie 137 peut être réalisée par une rainure axiale par exemple en queue d'aronde sur une demi bague 114 ou 115 et une nervure axiale complémentaire en queue d'aronde sur l'autre demi bague 115 ou 114 respectivement. Les nervures en queue d'aronde peuvent être assises sur un plan radial d'extrémité des demi bagues comme représenté sur la
Les moyens de liaison 116 rigide complète démontable entre les deux demi bagues 114 et 115, en sorte de former une bague 113 annulaire, comprennent en outre de préférence une butée axiale 154 et avantageusement des moyens de fixation 155 par vis des demi bagues l'une avec l'autre, comme représenté sur la
Concernant maintenant l'autre extrémité 153 des demi bagues 114 et 115, la liaison par glissière peut être réalisée sur les surfaces courbes des demi bagues, par exemple sur la surface intérieure de l'une et la surface extérieure de l'autre, par recouvrement des extrémités, comme représenté sur la
Afin d'augmenter la résistance des glissières 140, les articulations 122 et 123 comportant un degré de liberté en rotation et un degré de liberté en translation combinés comprennent des moyens de glissière 140 définis entre au moins un rebord 120, 121 de la première 105 partie du dispositif 101 liée à l'arbre rotatif par une liaison rigide complète, et l'arbre rotatif lui-même. Comme représenté sur les
A la différence du premier exemple, l'articulation 122 de la première extrémité 108 du premier bras 107 comporte en outre un degré de liberté en translation de telle sorte que l'ensemble constitué par les deux bras 107 et 110 peut se déplacer en translation le long des deux glissières 140 disposées sur les deux rebords 120 et 121 de la partie 105. L'articulation 124 entre les deux bras reste à un seul degré de liberté en rotation. Cette configuration offre une simplification du dispositif 101 en réduisant les articulations distinctes, ainsi qu'un dispositif plus solide et plus simple à assembler et à monter sur l'arbre. La forme de la section transversale du premier bras 107 peut être différente de la forme d'un arc de cercle en raison notamment de la protubérance occasionnée par la liaison à glissière des extrémités 153 de la bague 113, comme représenté sur la
Les moyens 121 de rappel élastique constituant une assistance au déploiement du premier 107 bras à l'écart de l'arbre en fin de rotation de ce dernier lors du déroulement du tablier de volet roulant, peuvent adopter la forme de deux lames flexibles élastiques disposées de part et d'autre du premier bras 107 et le long de celui-ci, comme représenté sur les
Les éléments constitutifs du premier exemple de mode de réalisation d'un dispositif de liaison selon l'invention, comme ceux du deuxième exemple, peuvent avantageusement être fabriqués en matière plastique rigide, de préférence moulée, sauf exception précisée dans la description des exemples ci-dessus détaillée.The constituent elements of the first exemplary embodiment of a connecting device according to the invention, such as those of the second example, can advantageously be made of rigid plastic material, preferably molded, except as specified in the description of the examples below. detailed top.
Claims (18)
- Connection device (1, 101) between a rotating shaft (2) and an apron (3) of interlocking slats (4) of a roller shutter, wherein the apron is able roll up around the shaft in an initial direction of rotation, and unroll in a second direction of rotation of the shaft in opposition to the first direction, so that said apron clears an opening in a building or similar, and enters said opening, respectively, said device being able to provide an anti-raising and traction function of the apron and comprising:- a first part (5, 105) connected to the rotating shaft by a complete rigid connection,- a second part (6, 106) articulated on the first part and comprising:- a first arm (7, 107):characterised in that the second part (6, 106) also comprises:- articulated on a first of its ends (8, 108) on said first part,- adopting a form able to approximately circumscribe, over the length of the first arm, at least one part of the peripheral external surface (28) of the shaft, and- comprising on the second of its ends (29, 129) means of connection (9, 109)
with the roller shutter apron,- a second arm (10, 110):- articulated on a first of its ends (11, 111) on said first part,- adopting a form able to approximately circumscribe over the length of the second arm (10, 110) at least one part of the peripheral external surface of the shaft, and- articulated at the second of its ends (12, 112) on said first arm (7, 107),- at least one of said first (7, 107) or second (10, 110) arms being articulated on said first part (5, 105) or one on the other by an articulation (23, 123) comprising combined a degree of freedom in rotation and a degree of freedom in translation. - Connection device according to claim 1, characterised in that said first (7, 107) and second (10, 110) arms are rigid, respectively.
- Connection device according to claim 1 or 2, characterised in that said first part (5, 105) of the device (1, 101) connected to the rotating shaft (2) by a complete rigid connection adopts the form of a ring (13, 113) which is able to surround the rotary shaft.
- Connection device according to claim 3, characterised in that said ring (13) able to surround the rotating shaft (2) comprises:- a first rigid annular part (14),- a second rigid annular part (15) juxtaposed axially to said first annular part, and- complete rigid means of connection (16) which may be unclipped between said first (14) and second (15) annular parts placed axially end to end.
- Connection device according to claim 3, characterised in that said ring (113) capable of surrounding the rotating shaft (2) comprises:- a first part (114) approximately adopting the form of an initial arc,- a second part (115) approximately adopting the form of a second arc, complementary to the first arc in order to form the ring around the rotating shaft,- complete rigid means of connection (116) which can be unclipped between said first and second parts in the form of an arc in order to form an annular ring.
- Connection device according to any one of claims 3 to 5, characterised in that said ring (13, 113) comprises a part protruding inwards (37, 137), capable of penetrating a housing (17) in the shaft (2) of the roller shutter with a view to making a connection through locking in rotation between the first part (5, 105) of the device (1, 101) and the shaft (2) of the roller shutter.
- Connection device according to claim 5, characterised in that the means of complete rigid connection which can be unclipped (116) between said first (114) and second (115) part of the ring (113), in the form of an arc, in order to form an annular ring comprise:- a first axial runner (150),- a second axial runner (151),
arranged around the first (152) and second (153) ends of said first and second parts in the form of an arc, respectively. - Connection device according to claim 7, characterised in that the complete rigid means of connection (116) which can be fully unclipped between said first (114) and second (115) parts in the form of an arc in order to form an annular ring (113) comprise in addition an axial stop device (154) between said first and second parts in the form of an arc.
- Connection device according to claims 5 and 6 characterised in that said projection (137) towards the interior of the ring (113) spreads over each of the first (114) and second (115) parts in the form of an arc.
- Connection device according to any one of claims 1 to 9, characterised in that it has articulated means (23) comprising combined a degree of freedom in rotation and a degree of freedom in translation, between the first end (11) of the second arm (10) and said first part (5) of the device (1) connected to the rotating shaft (2) by a complete rigid connection.
- Connection device following any one of claims 1 to 9, characterised in that it has articulated means (122, 123) comprising combined a degree of freedom in rotation and a degree of freedom in translation, between the first (111) end of the second (110) arm and said first (105) part of the device (101) connected to the rotary shaft by a complete rigid connection on the one hand, and between the first end (108) of the first arm (107) and said first part (105) of the device connected to the rotating shaft by a complete rigid connection on the other hand.
- Connection device according to any one of claims 1 to 11, characterised in that said articulation (122, 123) comprising combined a degree of freedom in rotation and a degree of freedom in translation has a means of sliding (140) defined between at least one edge (120, 121) of said first part (105) of the device (101) connected to the rotating shaft by a complete rigid connection, and the rotating shaft itself.
- Connection device according to any one of claims 1 to 11, characterised in that said articulation (23, 123) comprising combined a degree of freedom in rotation and a degree of freedom in translation has means of sliding (19, 119) defined in at least one edge (20, 120) of said first part (5, 105) of the device (1, 101) connected to the rotating shaft (2) by a complete rigid connection.
- Connection device according to any one of claims 1 to 13, characterised in that the first arm (7, 107) takes on a curved U-shape between the branches of which at least part of the second arm (10, 110) taking on a curved I or T shape is housed.
- Connection device according to any one of claims 1 to 14, characterised in that the first (7) and second (10) arms take on curved forms respectively thus forming a circular arc.
- Connection device according to any one of claims 1 to 15, characterised in that it has means of elastic return (21, 121) providing assistance with moving the first arm (7, 107) away from the shaft (2, 102) at the end of the latter's rotation when the apron (3) of the roller shutter as it is rolled down.
- Connection device according to any one of claims 1 to 16, characterised in that the first arm (7, 107) and the second arm (10, 110) are articulated on said first part (5, 105) of the device (1, 101) connected to the rotating shaft (2) by a complete rigid connection, by the first (22, 122) and second (23, 123) articulations comprising at least one axis of rotation parallel to the axis of rotation of the shaft of the roller shutter, respectively.
- Connection device according to any one of claims 1 to 17, characterised in that the first arm (7, 107) and the second arm (10, 110) are articulated on each other by a third articulation (24, 124) defining a unique degree of freedom in rotation according to an axis of rotation parallel to the axis of rotation of the roller shutter shaft.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0705404A FR2919335B1 (en) | 2007-07-25 | 2007-07-25 | DEVICE FOR CONNECTING A ROTATING SHAFT TO A ROLLER SHUTTER ARTICULATED BLADES APRON ENABLING IN PARTICULAR A SAFETY ANTI-LIFTING FUNCTION. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2022927A1 EP2022927A1 (en) | 2009-02-11 |
EP2022927B1 true EP2022927B1 (en) | 2013-05-29 |
Family
ID=38988261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080352016 Not-in-force EP2022927B1 (en) | 2007-07-25 | 2008-07-24 | Connection device between a rotating shaft and an apron of interlocking slats of a roller shutter providing in particular an anti-raising security function |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2022927B1 (en) |
ES (1) | ES2426215T3 (en) |
FR (1) | FR2919335B1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2950102B1 (en) * | 2009-09-11 | 2014-02-14 | Midi Moulages Plast | CONNECTING DEVICE BETWEEN A ROTARY SHAFT AND AN ARTICULATED WHEEL SHUTTER APRON, AND ROLLING SHUTTER PROVIDED WITH SUCH A DEVICE. |
DE102012019435B4 (en) | 2012-10-04 | 2016-05-04 | Roma Kg | Roller shutter and tank connection module for it |
FR2997718B1 (en) * | 2012-11-05 | 2015-05-01 | Zurfluh Feller | SHUTTER COMPONENT HITCHING DEVICE FOR CONNECTING APRON TO SHUTTER WINDING TREE |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2733461C3 (en) * | 1977-07-25 | 1980-05-08 | Walter 5159 Buir Schmidt | Lock for roller shutters and roller doors |
FR2754010B1 (en) * | 1996-09-30 | 1998-12-24 | Zurfluh Feller Sa | LOCK FOR ROLLING SHUTTER, EQUIPPED WITH A ROLLING FREE APRON WINDING AXIS |
FR2789437B1 (en) * | 1999-02-05 | 2001-06-08 | Midi Moulages Plast | ANTI-LIFTING DEVICE FOR ROLLING SHUTTER |
FR2831596B1 (en) * | 2001-10-26 | 2005-09-09 | Zurfluh Feller | LOCK DEVICE FOR SHUTTER FLANGE APRON AND ROLLING SHUTTER BOX INCORPORATING SAID DEVICE |
-
2007
- 2007-07-25 FR FR0705404A patent/FR2919335B1/en not_active Expired - Fee Related
-
2008
- 2008-07-24 EP EP20080352016 patent/EP2022927B1/en not_active Not-in-force
- 2008-07-24 ES ES08352016T patent/ES2426215T3/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2022927A1 (en) | 2009-02-11 |
ES2426215T3 (en) | 2013-10-22 |
FR2919335B1 (en) | 2009-10-16 |
FR2919335A1 (en) | 2009-01-30 |
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