EP2819556B1 - Motor-driven carriage, and blackout equipment including such a carriage - Google Patents

Motor-driven carriage, and blackout equipment including such a carriage Download PDF

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Publication number
EP2819556B1
EP2819556B1 EP13708730.0A EP13708730A EP2819556B1 EP 2819556 B1 EP2819556 B1 EP 2819556B1 EP 13708730 A EP13708730 A EP 13708730A EP 2819556 B1 EP2819556 B1 EP 2819556B1
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EP
European Patent Office
Prior art keywords
housing
carriage
cradle
rail
opening
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.)
Active
Application number
EP13708730.0A
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German (de)
French (fr)
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EP2819556A1 (en
Inventor
Rémi Sourain
Josiane Dunand
Serge Bruno
Pierre-Emmanuel Cavarec
Fabien Rousseau
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Somfy SA
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Somfy SA
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Publication of EP2819556A1 publication Critical patent/EP2819556A1/en
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Publication of EP2819556B1 publication Critical patent/EP2819556B1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47H—FURNISHINGS FOR WINDOWS OR DOORS
    • A47H5/00—Devices for drawing draperies, curtains, or the like
    • A47H5/02—Devices for opening and closing curtains
    • A47H5/032—Devices with guiding means and draw cords
    • A47H5/0325—Devices with guiding means and draw cords using electrical or electronical drive, detecting or controlling means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47H—FURNISHINGS FOR WINDOWS OR DOORS
    • A47H1/00—Curtain suspension devices
    • A47H1/04—Curtain rails
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47H—FURNISHINGS FOR WINDOWS OR DOORS
    • A47H5/00—Devices for drawing draperies, curtains, or the like
    • A47H5/02—Devices for opening and closing curtains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B3/00—Elevated railway systems with suspended vehicles
    • B61B3/02—Elevated railway systems with suspended vehicles with self-propelled vehicles

Definitions

  • the invention relates to a motorized opening / closing carriage of a curtain, this carriage being able to move along a rail.
  • the invention also relates to an occultation installation which comprises a rail, a motorized carriage of the aforementioned type and a curtain driven by this carriage.
  • This head carriage may comprise guide wheels, generally at least two pairs of wheels, which roll on rolling tracks formed along a rail fixed near the upper edge of an opening to be obscured.
  • JP-A-2005-095364 To incorporate in a trolley a friction wheel driven in rotation by an electric motor.
  • the contact force between the friction wheel and a running surface on which it is moving is directly related to the performance of the system. The greater the contact force, the less the contact wheel can slide relative to the rail.
  • DE-A-24 36 753 suspending a motor carriage from a rail and generating a contact force between a friction wheel and a rail, taking into account the direction of travel.
  • the weight of the first panel of curtain is not known and can diverge greatly from one installation to another. On the other hand, this weight being hung cantilever relative to the housing, it creates a tilting torque on the housing. There is therefore a need for fine adjustment of the force of the contact between the friction wheel and the rail.
  • FR-A-2 962 317 suspending from a rail the housing of a motorized opening / closing curtain carriage, by means of two members, one of which can tilt relative to this housing, which adjusts the contact force between the rail and a friction wheel carried by this housing.
  • the forces exerted by the curtain on the suspension member that pivots relative to the housing can reduce the effectiveness of the drive system contained in the housing.
  • the invention more particularly intends to remedy by proposing a new motorized carriage which makes it possible to drive a curtain effectively with a substantially constant contact force between a friction wheel and a running surface of a rail. standard that may have curved areas.
  • the invention relates to a motorized opening / closing carriage of a curtain, this carriage comprising a housing provided with two suspension members to a rail and in which is rotatably mounted a friction wheel driven by an electric motor. and intended to be in contact with at least one running surface of the rail.
  • this carriage also comprises a cradle provided, on the one hand, with two rail suspension members independent of those of the housing and, on the other hand, means for attaching the curtain, whereas the cradle is mounted on the housing being driven by it when moving along the rail, with a possibility of relative movement between the housing and the cradle.
  • the drive function of the carriage is provided by the elements included in the housing, including the friction wheel and its motor, while the function of attachment of the curtain is provided by the cradle.
  • the body or the suspension members of the housing only take the weight of this housing and the elements they contain, this weight being known and constant.
  • the fact of decoupling the cradle from the housing makes it possible to avoid a need for fine adjustment of the pressure between the friction wheel and the rail: the tilt torque created by the weight of the first curtain panel is exerted on the cradle and has no impact on the case itself.
  • the driven weight corresponding to all or part of the curtain depending on the position of the motorized carriage along the rail, is variable and taken up by the suspension or the cradle suspension members and possibly by carriages followers.
  • the induced variation in traction force transmitted by the relative displacement of the cradle with respect to the casing, has a positive influence on the contact force between the friction wheel and the running surface of the rail.
  • the tilting torque created by the curtain is exerted on the cradle. It is effectively taken over by the two suspension elements of the cradle and has no significant impact on the housing.
  • this housing and this cradle can be mechanically decoupled from each other, in that they can move relative to each other. 'other.
  • the motorized trolley it is possible for the motorized trolley to follow a curved path along the rail, with a relatively small radius of curvature, of the order of 200 mm.
  • the invention also relates to an occultation installation of an opening, this installation comprising a rail, a motorized carriage as mentioned above and a curtain hanging on the cradle of the carriage.
  • the figure 1 illustrates a motorization system of a curtain 10 in an installation I conceal a window not shown.
  • the curtain which forms an occultation screen, is suspended from trolleys of two types 20 and 100, thanks to unrepresented hooks.
  • Each carriage is equipped with guide wheels rolling on rolling tracks arranged along a rail 50 fixed near the upper edge of the window.
  • the curtain 10 can move along the rail 50.
  • the curtain 10 is hooked to a stop 30 fixed to the rail 50.
  • the curtain 10 is attached to a motorized head carriage 100 whose structure is detailed in the Figures 2 to 7 .
  • the curtain 10 is composed of fabric sections P11 to P16 corresponding to the fabric surface hanging between two support carriages 20 or between the carriage 100 and the nearest support carriage 20.
  • the closing of the curtain 10 takes place by moving the curtain to the left at the figure 1 , in the direction of arrow F1. Its opening takes place by moving it to the right, in the direction of the arrow F2.
  • the carriage 100 comprises a housing 110 of plastics material inside which is partially housed a friction wheel 112. This exceeds the housing 110 through an opening 114 formed in the upper part of this housing.
  • the housing 110 also comprises an electric motor 116, a gear reducer 118, a battery pack 120 and an electronic control board 122.
  • the elements 116 to 122 make it possible to drive the wheel 114 in rotation about an axis X112 which is horizontal and perpendicular to the F1 and F2 recoil directions of the carriage 100 along the rail 50.
  • the housing 110 is equipped with a front suspension member 124 and a rear suspension member 126 which extend upwardly from an upper surface 111 of the housing 110 in which the opening 114 is formed.
  • the suspension members 124 and 126 are each hinged relative to the housing 110 about an axis X124, respectively X126, parallel to the axis X114.
  • the suspension member 124 comprises a base member 1241 which is integral with a threaded rod 1242 and which is immobilized on the housing 110 by means of a screw 1243 which defines the axis X124.
  • a hub 1244 is screwed onto the threaded rod 1242. This hub supports two rollers 1245 and 1246 rotatably mounted on the hub 1244 about an axis A124 whose orientation relative to the housing 110 is variable.
  • rollers 1245 and 1246 are mounted on a common shaft 1247, formed of a screw 1247A and a threaded sleeve 1247B, which is received in a circular section housing 1248 which comprises a central portion whose diameter is adjusted relative to the diameter of the shaft 1247 and which flares towards the rollers 1245 and 1246.
  • the housing 1248 is diabolo-shaped.
  • the shaft 1247 can pivot about an axis Z124 which is perpendicular to the axis X124 and constitutes a longitudinal axis for the parts 1241, 1242 and 1244. This construction allows the rollers 1245 and 1246 to follow a bend or turn. curved region of the rail 50 during the movements of the carriage 100 along the rail 50 in the direction of the arrows F1 and F2.
  • the member 126 is identical to the member 124 and comprises a base member 1261 immobilized by a screw 1263 on the housing 110 and a hub 1264 screwed onto a threaded rod 1262 and on which are mounted two rollers 1265 and 1266 connected by a shaft 1267 received in a housing 1268 of the hub 1264.
  • the rollers 1245 and 1265 are provided for rolling on a track 51 formed inside the rail 50, while the rollers 1246 and 1266 are provided for rolling on another track 52 also formed inside the rail.
  • the tracks 51 and 52 are formed on either side of a slot 53 for passing the hubs 1244 and 1264.
  • the tracks 51 and 52 constitute the upper surfaces of two wings 54 and 55 of the rail 50 between which is defined the slot 53.
  • the carriage 100 also comprises a cradle 150 made from several folded and cut sheet metal strips.
  • the cradle 150 comprises a main body 151 of which A151 is a longitudinal axis.
  • the body 151 has a U-shaped cross section with a flat bottom returned.
  • a jumper 152 also with inverted flat-bottomed U-section, is fixed on the body 151 near its front end 1512.
  • the rider 152 supports a tab 153 in which are formed two openings 1532 and 1534 for receiving unrepresented hooks. fixed at the top of the curtain 10.
  • the main body 151 Near its rear end 1514, the main body 151 carries a second rider 154 provided with an opening 1542 for receiving a not shown hook fixed on the curtain.
  • the upper left part of the curtain can be secured to the cradle 150 by engaging hooks in the openings 1532, 1534 and 1542.
  • the cradle 150 is equipped with two pads 155 and 156 with a T-shaped cross-section and intended to be engaged in the internal volume V50 of the rail 50, like the rollers mentioned above.
  • the wings 1552, 1554, 1562 and 1564 of the pads 155 and 156 are provided for sliding on the tracks 51 and 52.
  • the pads 155 and 156 are pivotally mounted, relative to the body 151, about axes Z155 and Z156 which are perpendicular to the axis A151 and the upper web 1513 of this body corresponding to the flat bottom of the rail.
  • the variable orientation of the shoes 155 and 156 relative to the axis A151 allows them to follow a turn of the rail 50.
  • the upper web 1513 of the body 151 is pierced with three openings, namely a central opening 1515 for passage of the wheel 112, a front opening 1516 for the passage of the hub 1244 and a rear opening 1517 through which the hub 1264 passes.
  • the housing 110 is provided, on either side of the wheel 112, with two cheeks 128 and 130 which define between them and the wheel 112 two zones Z1 and Z2 partially receiving the sides 1518 and 1519 of the body 151. .
  • rollers 1245, 1246, 1265 and 1266 and the shoes 155 and 156 can be received at the same time in the interior volume V50 of the rail 50, bearing on the tracks 51 and 52.
  • the housing 110 and the cradle 150 are suspended from the rail 50 by the members 124, 126, on the one hand, 155 and 156, on the other hand, and independently of one another.
  • the friction wheel 112 bears against the rolling surface formed by the surfaces 56 and 57 and, when it is driven by the motor 116 and the gearbox 118, it can move the housing 110 along the rail 50, forward in the direction of arrow F1 or backwards in the direction of arrow F2.
  • the housing 110 comes, by the hub 1244, bearing against the front edge 1516A of the opening 1516.
  • the hub 1264 bears against the rear edge 1517B of the opening 1517.
  • the suspension members 124 and 126, and more particularly their hubs 1244 and 1264 thus serve to transmit a force F3 for moving the housing 110 to the cradle 150, along the rail 50.
  • the openings 1516 and 1517 each have a length L151, parallel to the axis A151 and a width l151 perpendicular to this axis which are greater than dimensions of the hubs 1244 and 1265 measured parallel to a longitudinal axis A110 of the housing 110 and perpendicular to this axis.
  • the cradle 150 can be mounted on the housing after the installation of the suspension members 124, 126 on the housing 110. Otherwise, the bodies suspension 124, 126 can be put in place after mounting the cradle 150 on the housing 110.
  • the axes Z124, Z126, Z155 and Z156 are normally perpendicular to the tracks 51 and 52, since the members 124 and 126 can pivot, with an amplitude limited by the length L151, about the axes X124 and X126. In practice, this possibility of pivoting is less than 20 °, so that the Z124 and Z126 axes can be considered generally perpendicular to the tracks 51 and 52. In addition, the axes Z124, Z126, Z155 and Z156 are perpendicular to the axis X112.
  • the members 124 and 126 are disposed on either side of the members 155 and 156, themselves arranged on either side of the wheel 112. This gives the trolley 100 good stability. , including when traveling.
  • the weight of the housing 110 and the elements it includes is constant during operation of the carriage 100 and the suspension members 124 and 126 only take this weight. This weight is known and stable.
  • the dimensions of the wheel 112 and the members 124 and 126 are chosen so that the contact force between the friction wheel and the running surface consisting of the surfaces 56 and 57 is sufficient to avoid, or at least limit to a large extent , sliding between the wheel 112 and the running surface.
  • the weight of the curtain 10 in movement that is to say of the driven part of the curtain, which is variable according to the position of the carriage 100 along the rail 50, is taken up by the various carriages 20 of curtain support. The variation of this weight does not affect the quality of the contact force between the wheel 112 and the running surface.
  • the weight of the first curtain pan P11 is exclusively taken up by the cradle 150 and the pads 155 and 156.
  • the cradle moves the axis Z126 of the suspension member 126. pressing, by means of the edge of the opening 1517 opposite the edge 1517A, against the hub 1264. This causes the member 126 to swing in a clockwise direction to the figure 3 and, thereby, influences the contact force between the wheel 112 and the raceway formed by the surfaces 56 and 57, depending on the approach envisaged in FIG. WO-2012/004530 .
  • the tilting of the member 126 about the axis X126 has the effect of bringing the axis A126 of the axis X112 in a direction perpendicular to the surfaces 56 and 57 and thereby increase this contact force.
  • the contact force is lower, which allows a lower power consumption and greater autonomy. So, as in WO-2012/004530 , the contact force varies according to a resistant force which depends on the evolution of the load pulled or pushed by the carriage 100 during its movement.
  • the hubs 1244 and 1246 are circular in section and bear respectively against the front edge 1516A of the opening 1516 and against the rear edge 1517B of the opening 1517 which are rectilinear, in the direction of movement of the carriage 100, for transmit a F3 drive or pulling force that is directed forward in the example of figures 6 and 7 .
  • This force F3 is tangent to a median axis Y50 of the rail 50.
  • the transmission of the traction force forwards or backwards takes place at the interface between a circular surface of a hub and a straight edge of the rail. an opening, which makes it possible to limit the friction perpendicular to the axes A110 and A151 which are normally merged and which can be slightly misaligned in the turning zones of the rail 50.
  • the carriage 100 of this embodiment comprises a housing 110 in which is received a friction wheel 112 intended to roll on a running surface 56 provided in the lower part of a rail 50.
  • the wheel 112 is driven by a motor 116 and a gear reducer 118.
  • Two suspension members 124 and 126 equip the housing 110 and are provided with rollers 1245 and 1265 intended to roll on a track 51 internal to the rail 50.
  • a cradle 150 is provided for the attachment of a curtain, not shown, by means of tabs 153 and 154 pierced with openings for the passage of hooks mounted on the curtain.
  • This cradle is equipped with two suspension members 155 and 156 also provided with rollers 1555 and 1556 provided for rolling on the track 51 of the rail 50.
  • the carriage 110 is equipped with two pushers 132 and 134 whose outer surface, opposite the wheel 112, is rounded and convex.
  • the outer surface of the pushers 132 and 134 is in cylinder section with a vertical axis in the mounted configuration of the carriage 100 on the rail 50.
  • the cradle 150 is, in turn, equipped with two other pushers 162 and 164 complementary pushers 132 and 134 and each having a surface facing the housing 110 which is rounded and convex, as the outer surface of the pushers 132 and 134.
  • the traction force F3 between the carriage 110 and the cradle 150 when the carriage 110 moves in the direction of the arrow F1 to Figures 8 and 9 is parallel to a tangent to the longitudinal axis Y50 of the rail 50.
  • This makes it possible to cancel, to a large extent, a component of this force normal to the curvature of the rail 50, which is advantageous because this normal component could generate friction likely to disturb the efficiency of the transmission of force between the parts 110 and 150 of the carriage 100.
  • the choice of suitable materials also limits this friction.
  • the invention has been shown in the first embodiment in the case where the members 155 and 156 for suspending the cradle 150 are formed by pads.
  • these suspension members may comprise rollers rolling on the tracks of the rail.
  • the suspension members of the housing of the first embodiment or the housing and the cradle of the second embodiment may comprise slippery pads.
  • openings comparable to those 1516 and 1517 of the first embodiment may be provided on the housing 110, for the passage of suspension members of the cradle 150.

Description

L'invention concerne un chariot motorisé d'ouverture/fermeture d'un rideau, ce chariot étant apte à se déplacer le long d'un rail. L'invention concerne également une installation d'occultation qui comprend un rail, un chariot motorisé du type précité ainsi qu'un rideau entraîné par ce chariot.The invention relates to a motorized opening / closing carriage of a curtain, this carriage being able to move along a rail. The invention also relates to an occultation installation which comprises a rail, a motorized carriage of the aforementioned type and a curtain driven by this carriage.

Il existe différents dispositifs qui permettent de manoeuvrer l'ouverture d'un rideau d'occultation d'une ouverture telle qu'une fenêtre. Une solution consiste à motoriser le déplacement d'un chariot de tête sur lequel est fixée une extrémité du rideau. Ce chariot de tête peut comprendre des roues de guidage, en général au moins deux paires de roues, qui roulent sur des pistes de roulement formées le long d'un rail fixé à proximité du bord supérieur d'une ouverture à occulter.There are various devices that make it possible to manipulate the opening of an occultation curtain with an opening such as a window. One solution is to motorize the movement of a head carriage on which is fixed one end of the curtain. This head carriage may comprise guide wheels, generally at least two pairs of wheels, which roll on rolling tracks formed along a rail fixed near the upper edge of an opening to be obscured.

Il est connu de JP-A-2005-095364 d'incorporer dans un chariot une roue de friction entraînée en rotation par un moteur électrique. L'effort de contact entre la roue de friction et une surface de roulement sur laquelle elle se déplace est directement lié à la performance du système. Plus cet effort de contact est important, moins la roue de contact risque de glisser par rapport au rail. Il est connu de DE-A-24 36 753 de suspendre un chariot moteur à un rail et de générer un effort de contact entre une roue de friction et un rail, prenant en compte le sens de déplacement. Cependant, le poids du premier pan de rideau n'est pas connu et peut diverger grandement d'une installation à une autre. D'autre part, ce poids étant suspendu en porte-à-faux par rapport au boîtier, il crée un couple de basculement sur le boîtier. Il existe donc un besoin de réglage fin de l'effort du contact entre la roue de friction et le rail.It is known to JP-A-2005-095364 to incorporate in a trolley a friction wheel driven in rotation by an electric motor. The contact force between the friction wheel and a running surface on which it is moving is directly related to the performance of the system. The greater the contact force, the less the contact wheel can slide relative to the rail. It is known to DE-A-24 36 753 suspending a motor carriage from a rail and generating a contact force between a friction wheel and a rail, taking into account the direction of travel. However, the weight of the first panel of curtain is not known and can diverge greatly from one installation to another. On the other hand, this weight being hung cantilever relative to the housing, it creates a tilting torque on the housing. There is therefore a need for fine adjustment of the force of the contact between the friction wheel and the rail.

Il est également connu de DE-A-34 37 457 de disposer un chariot moteur à l'intérieur d'un rail, ce qui permet de rendre l'effort de contact entre les roues d'entrainement et le rail indépendant de la charge tractée, c'est-à-dire de la masse du rideau. Toutefois, une géométrie particulière du rail doit être prévue pour loger le chariot et le rail ne peut pas être courbe, avec un rayon de courbure relativement petit, faute de quoi le chariot risque de se coincer dans un virage.It is also known to DE-A-34 37 457 to have a motor carriage inside a rail, which makes it possible to make the contact force between the drive wheels and the independent rail of the towed load, that is to say the mass of the curtain. However, a particular geometry of the rail must be provided to accommodate the carriage and the rail can not be curved, with a relatively small radius of curvature, otherwise the carriage may get stuck in a turn.

Il est en outre connu de FR-A-2 962 317 de suspendre à un rail le boîtier d'un chariot motorisé d'ouverture/fermeture d'un rideau, au moyen de deux organes dont l'un peut basculer par rapport à ce boîtier, ce qui ajuste l'effort de contact entre le rail et une roue de friction portée par ce boîtier. Les efforts exercés par le rideau sur l'organe de suspension qui pivote par rapport au boîtier peuvent diminuer l'efficacité du système d'entrainement contenu dans le boîtier.It is furthermore known to FR-A-2 962 317 suspending from a rail the housing of a motorized opening / closing curtain carriage, by means of two members, one of which can tilt relative to this housing, which adjusts the contact force between the rail and a friction wheel carried by this housing. The forces exerted by the curtain on the suspension member that pivots relative to the housing can reduce the effectiveness of the drive system contained in the housing.

C'est à ces inconvénients qu'entend plus particulièrement remédier l'invention en proposant un nouveau chariot motorisé qui permet d'entraîner efficacement un rideau avec un effort de contact sensiblement constant entre une roue de friction et une surface de roulement d'un rail standard pouvant présenter des zones courbes.It is these drawbacks that the invention more particularly intends to remedy by proposing a new motorized carriage which makes it possible to drive a curtain effectively with a substantially constant contact force between a friction wheel and a running surface of a rail. standard that may have curved areas.

A cet effet, l'invention concerne un chariot motorisé d'ouverture/fermeture d'un rideau, ce chariot comprenant un boîtier pourvu de deux organes de suspension à un rail et dans lequel est montée rotative une roue de friction entraînée par un moteur électrique et destinée à être en contact avec au moins une surface de roulement du rail. Conformément à l'invention, ce chariot comprend également un berceau pourvu, d'une part, de deux organes de suspension au rail indépendants de ceux du boîtier et, d'autre part, de moyens d'accrochage du rideau, alors que le berceau est monté sur le boîtier en étant entraîné par celui-ci lorsqu'il se déplace le long du rail, avec une possibilité de déplacement relatif entre le boîtier et le berceau.To this end, the invention relates to a motorized opening / closing carriage of a curtain, this carriage comprising a housing provided with two suspension members to a rail and in which is rotatably mounted a friction wheel driven by an electric motor. and intended to be in contact with at least one running surface of the rail. In accordance with the invention, this carriage also comprises a cradle provided, on the one hand, with two rail suspension members independent of those of the housing and, on the other hand, means for attaching the curtain, whereas the cradle is mounted on the housing being driven by it when moving along the rail, with a possibility of relative movement between the housing and the cradle.

Grâce à l'invention, la fonction d'entraînement du chariot est assurée par les éléments inclus dans le boîtier, notamment la roue de friction et son moteur, alors que la fonction d'accrochage du rideau est assurée par le berceau. Le ou les organes de suspension du boîtier reprennent uniquement le poids de ce boîtier et des éléments qu'ils renferment, ce poids étant connu et constant. Par ailleurs, le fait de découpler le berceau du boîtier permet d'éviter un besoin de réglage fin de la pression entre la roue de friction et le rail : le couple de basculement créé par le poids du premier pan de rideau est exercé sur le berceau et n'a pas d'impact sur le boîtier lui-même. De plus, le poids entraîné, correspondant à tout ou partie du rideau en fonction de la position du chariot motorisé le long du rail, est variable et repris par le ou les organes de suspension du berceau et éventuellement par des chariots suiveurs. De ce fait, la variation induite d'effort de traction, transmise par le déplacement relatif du berceau par rapport au boîtier, influe positivement sur l'effort de contact entre la roue de friction et la surface de roulement du rail. Le couple de basculement créé par le rideau s'exerce sur le berceau. Il est efficacement repris par les deux organes de suspension du berceau et n'a pas d'impact sensible sur le boîtier. Grâce aux deux jeux d'organes de suspension qui équipent respectivement le boîtier et le berceau, ce boîtier et ce berceau peuvent être mécaniquement découplés l'un de l'autre, en ce sens qu'ils peuvent bouger l'un par rapport à l'autre. De plus, grâce à la possibilité de déplacement relatif entre le chariot et le berceau et à la compacité du chariot motorisé, il est possible au chariot motorisé de suivre un trajet courbe le long du rail, avec un rayon de courbure relativement faible, de l'ordre de 200 mm.Thanks to the invention, the drive function of the carriage is provided by the elements included in the housing, including the friction wheel and its motor, while the function of attachment of the curtain is provided by the cradle. The body or the suspension members of the housing only take the weight of this housing and the elements they contain, this weight being known and constant. Moreover, the fact of decoupling the cradle from the housing makes it possible to avoid a need for fine adjustment of the pressure between the friction wheel and the rail: the tilt torque created by the weight of the first curtain panel is exerted on the cradle and has no impact on the case itself. In addition, the driven weight, corresponding to all or part of the curtain depending on the position of the motorized carriage along the rail, is variable and taken up by the suspension or the cradle suspension members and possibly by carriages followers. As a result, the induced variation in traction force, transmitted by the relative displacement of the cradle with respect to the casing, has a positive influence on the contact force between the friction wheel and the running surface of the rail. The tilting torque created by the curtain is exerted on the cradle. It is effectively taken over by the two suspension elements of the cradle and has no significant impact on the housing. Thanks to the two sets of suspension members which equip respectively the housing and the cradle, this housing and this cradle can be mechanically decoupled from each other, in that they can move relative to each other. 'other. In addition, thanks to the possibility of relative movement between the carriage and the cradle and the compactness of the motorized trolley, it is possible for the motorized trolley to follow a curved path along the rail, with a relatively small radius of curvature, of the order of 200 mm.

Selon des aspects avantageux mais non obligatoires de l'invention, un tel chariot peut incorporer une ou plusieurs des caractéristiques suivantes, prises dans toute combinaison techniquement admissible :

  • Les organes de suspension du boîtier reprennent uniquement le poids du boîtier et des éléments qu'il renferme, ce poids étant constant, alors que les organes de suspension du berceau reprennent le poids entraîné, ce poids étant variable en fonction de la position du chariot le long du rail.
  • Le premier élément comprend deux ouvertures, dans chacune desquelles est engagé, avec jeu, un organe de suspension du deuxième élément. Ceci permet d'intercaler les patins et galets, de sorte que le chariot motorisé présente une compacité optimum. Ceci permet également de respecter des côtes précises (100mm) de largeur du premier pan de rideau.
  • Le premier élément est apte à déplacer au moins un organe de suspension par rapport au deuxième élément, en faisant varier un effort de contact entre la roue de friction et la surface de roulement.
  • Chaque ouverture présente, selon une direction longitudinale parallèle à une direction de déplacement du chariot et selon une direction transversale perpendiculaire à la direction de déplacement du chariot, des dimensions strictement supérieures aux dimensions, selon ces deux directions longitudinale et transversale, de la partie de l'organe de suspension qui est reçue dans cette ouverture.
  • Le premier élément est le berceau, qui est pourvu d'une troisième ouverture de passage de la roue de friction, et le deuxième élément est le boîtier.
  • La troisième ouverture est située, le long d'un axe longitudinal du berceau, entre les deux ouvertures de passage des organes de suspension du boîtier.
  • En configuration montée du chariot, les organes de suspension du boîtier sont disposés, le long d'axe longitudinal du boîtier, de part et d'autre des organes de suspension du berceau, qui sont eux-mêmes disposés, le long de cet axe, de part et d'autre de la roue de friction.
  • Le berceau est monté sur le chariot avec possibilité de déplacement relatif selon une direction parallèle à un axe longitudinal du chariot et selon une direction perpendiculaire à cet axe.
  • Chaque organe de suspension du boîtier et/ou chaque organe de suspension du berceau est équipé d'au moins un galet ou d'au moins un patin d'interaction avec une piste du rail, alors que ce galet ou ce patin est articulé, par rapport au boîtier et/ou au berceau, autour d'un axe globalement perpendiculaire à la piste du rail en configuration montée du chariot sur le rail et perpendiculaire à l'axe de rotation de la roue de friction. Ainsi, lors d'un déplacement du boîtier par rapport au berceau, le berceau vient déplacer l'axe du galet et/ou du rail et par cela, influer sur l'effort de friction. Plus le poids du premier pan de rideau et/ou de la partie de rideau entraînée est important, plus l'axe du galet ou du patin est déplacé par rapport à l'axe perpendiculaire, et plus l'effort de friction est important. Au contraire, pour des rideaux de faible poids, l'effort de friction est plus faible, ce qui permet une consommation électrique plus faible et une autonomie plus grande.
  • Au moins un organe de suspension comprend deux galets articulés sur un support disposé entre ces galets, au moyen d'un arbre reçu dans un logement circulaire du support et ce logement a une section croissante en direction des galets.
  • Le berceau est pourvu d'une ouverture de passage de la roue de friction.
  • Le boîtier définit au moins un volume de réception partielle du berceau.
According to advantageous but non-obligatory aspects of the invention, such a carriage may incorporate one or more of the following features, taken in any technically permissible combination:
  • The suspension members of the casing take up only the weight of the casing and the elements it contains, this weight being constant, whereas the suspension members of the cradle take up the driven weight, this weight being variable as a function of the position of the carriage on along the rail.
  • The first element comprises two openings, in each of which is engaged, with clearance, a suspension member of the second element. This allows to insert the pads and rollers, so that the motorized carriage has optimum compactness. This also makes it possible to respect precise ribs (100mm) of width of the first curtain panel.
  • The first element is able to move at least one suspension member relative to the second element, by varying a contact force between the friction wheel and the running surface.
  • Each opening has, in a longitudinal direction parallel to a direction of travel of the carriage and in a transverse direction perpendicular to the direction of travel of the carriage, dimensions strictly greater than the dimensions, along these two longitudinal and transverse directions, of the part of the carriage. suspension member which is received in this opening.
  • The first element is the cradle, which is provided with a third passage opening of the friction wheel, and the second element is the housing.
  • The third opening is located, along a longitudinal axis of the cradle, between the two openings for passage of the suspension members of the housing.
  • In the mounted configuration of the carriage, the suspension members of the housing are arranged, along the longitudinal axis of the housing, on either side of the suspension members of the cradle, which are themselves arranged along this axis, on both sides of the friction wheel.
  • The cradle is mounted on the carriage with the possibility of relative displacement in a direction parallel to a longitudinal axis of the carriage and in a direction perpendicular to this axis.
  • Each suspension member of the housing and / or each suspension member of the cradle is equipped with at least one roller or at least one interaction pad with a track of the rail, whereas this roller or this pad is hinged by relative to the housing and / or the cradle, around an axis generally perpendicular to the track of the rail configuration mounting of the carriage on the rail and perpendicular to the axis of rotation of the friction wheel. Thus, during a movement of the housing relative to the cradle, the cradle moves the axis of the roller and / or rail and thereby affect the friction force. The greater the weight of the first curtain panel and / or the driven curtain portion, the greater the axis of the roller or pad is displaced relative to the perpendicular axis, and the greater the frictional force. On the contrary, for curtains of low weight, the friction force is lower, which allows a lower power consumption and greater autonomy.
  • At least one suspension member comprises two rollers articulated on a support disposed between these rollers, by means of a shaft received in a circular housing of the support and this housing has an increasing section towards the rollers.
  • The cradle is provided with a passage opening of the friction wheel.
  • The housing defines at least a partial reception volume of the cradle.

L'invention concerne également une installation d'occultation d'une ouverture, cette installation comprenant un rail, un chariot motorisé tel que mentionné ci-dessus ainsi qu'un rideau accroché sur le berceau du chariot.The invention also relates to an occultation installation of an opening, this installation comprising a rail, a motorized carriage as mentioned above and a curtain hanging on the cradle of the carriage.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui va suivre de deux modes de réalisation d'un chariot motorisé et d'une installation conformes à son principe, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une représentation schématique de principe d'une installation à rideau intégrant un chariot motorisé conforme à l'invention,
  • la figure 2 est une vue en perspective éclatée du chariot et du rail de l'installation de la figure 1,
  • la figure 3 est une vue de côté du chariot,
  • la figure 4 est une vue de dessus du chariot,
  • la figure 5 est une vue de dessus du chariot, un boîtier et un berceau du chariot étant séparés l'un de l'autre,
  • la figure 6 est une coupe horizontale d'une zone de virage d'un rail dans lequel coulisse le chariot des figures 2 à 5,
  • la figure 7 est une vue à plus grande échelle du détail VII à la figure 6,
  • la figure 8 est une représentation schématique de principe, en vue de côté, d'une installation conforme à un deuxième mode de réalisation de l'invention et
  • la figure 9 est une représentation schématique, en vue de dessus et à plus grande échelle, de l'installation de la figure 8.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of two embodiments of a motorized trolley and an installation in accordance with its principle, given only to by way of example and with reference to the appended drawings in which:
  • the figure 1 is a schematic representation of a principle of a curtain installation incorporating a motorized carriage according to the invention,
  • the figure 2 is an exploded perspective view of the trolley and rail of the installation of the figure 1 ,
  • the figure 3 is a side view of the cart,
  • the figure 4 is a top view of the cart,
  • the figure 5 is a top view of the carriage, a housing and a cradle of the carriage being separated from each other,
  • the figure 6 is a horizontal section of a turning zone of a rail in which slides the trolley of Figures 2 to 5 ,
  • the figure 7 is a larger-scale view of detail VII to the figure 6 ,
  • the figure 8 is a schematic representation in principle, in side view, of an installation according to a second embodiment of the invention and
  • the figure 9 is a schematic representation, seen from above and on a larger scale, of the installation of the figure 8 .

La figure 1 illustre un système de motorisation d'un rideau 10 au sein d'une installation I d'occultation d'une fenêtre non représentée. Le rideau, qui forme un écran d'occultation, est suspendu à des chariots de deux types 20 et 100, grâce à des crochets non représentés. Chaque chariot est équipé de roues de guidage roulant sur des pistes de roulement ménagées le long d'un rail 50 fixé à proximité du bord supérieur de la fenêtre. Ainsi, le rideau 10 peut se déplacer le long du rail 50. A l'une de ses extrémités hautes, le rideau 10 est accroché à une butée 30 fixée au rail 50. A son autre extrémité haute, le rideau 10 est accroché à un chariot de tête motorisée 100 dont la structure est détaillée dans les figures 2 à 7. Le rideau 10 est composé de pans de tissu P11 à P16 correspondants à la surface de tissu pendant entre deux chariots de support 20 ou entre le chariot 100 et le chariot de support 20 le plus proche.The figure 1 illustrates a motorization system of a curtain 10 in an installation I conceal a window not shown. The curtain, which forms an occultation screen, is suspended from trolleys of two types 20 and 100, thanks to unrepresented hooks. Each carriage is equipped with guide wheels rolling on rolling tracks arranged along a rail 50 fixed near the upper edge of the window. Thus, the curtain 10 can move along the rail 50. At one of its high ends, the curtain 10 is hooked to a stop 30 fixed to the rail 50. At its other high end, the curtain 10 is attached to a motorized head carriage 100 whose structure is detailed in the Figures 2 to 7 . The curtain 10 is composed of fabric sections P11 to P16 corresponding to the fabric surface hanging between two support carriages 20 or between the carriage 100 and the nearest support carriage 20.

La fermeture du rideau 10 a lieu en déplaçant le rideau vers la gauche à la figure 1, dans le sens de la flèche F1. Son ouverture a lieu en le déplaçant vers la droite, dans le sens de la flèche F2.The closing of the curtain 10 takes place by moving the curtain to the left at the figure 1 , in the direction of arrow F1. Its opening takes place by moving it to the right, in the direction of the arrow F2.

Dans la présente description, les mots « haut » et « bas », « supérieur » et « inférieur » sont utilisés en référence à une configuration de fonctionnement de l'installation de la figure 1. Les mots « avant » et « arrière » sont relatifs au sens du déplacement du rideau 10 lors de la fermeture. Ainsi une partie « avant » est située sur la gauche de la figure 1 par rapport à une partie « arrière ».In the present description, the words "up" and "down", "upper" and "lower" are used with reference to an operating configuration of the installation of the figure 1 . The words "before" and "back" are relative to the direction of movement of the curtain 10 during closure. So a "front" part is located on the left of the figure 1 compared to a "back" part.

Comme cela ressort plus particulièrement des figures 2 à 5, le chariot 100 comprend un boîtier 110 en matière plastique à l'intérieur duquel est partiellement logée une roue de friction 112. Celle-ci dépasse du boîtier 110 à travers une ouverture 114 ménagée en partie supérieure de ce boîtier. Comme cela ressort de la figure 3, le boîtier 110 comprend également un moteur électrique 116, un réducteur 118, un ensemble de batteries 120 et une carte électronique de commande 122. Les éléments 116 à 122 permettent d'entraîner en rotation la roue 114 autour d'un axe X112 qui est horizontal et perpendiculaire aux directions d'avance F1 et de recul F2 du chariot 100 le long du rail 50.As is apparent in particular from Figures 2 to 5 , the carriage 100 comprises a housing 110 of plastics material inside which is partially housed a friction wheel 112. This exceeds the housing 110 through an opening 114 formed in the upper part of this housing. As is apparent from the figure 3 the housing 110 also comprises an electric motor 116, a gear reducer 118, a battery pack 120 and an electronic control board 122. The elements 116 to 122 make it possible to drive the wheel 114 in rotation about an axis X112 which is horizontal and perpendicular to the F1 and F2 recoil directions of the carriage 100 along the rail 50.

Le boîtier 110 est équipé d'un organe de suspension avant 124 et d'un organe de suspension arrière 126 qui s'étendent vers le haut à partir d'une surface supérieure 111 du boîtier 110 dans laquelle est ménagée l'ouverture 114.The housing 110 is equipped with a front suspension member 124 and a rear suspension member 126 which extend upwardly from an upper surface 111 of the housing 110 in which the opening 114 is formed.

Les organes de suspension 124 et 126 sont chacun articulés par rapport au boîtier 110 autour d'un axe X124, respectivement X126, parallèle à l'axe X114.The suspension members 124 and 126 are each hinged relative to the housing 110 about an axis X124, respectively X126, parallel to the axis X114.

L'organe de suspension 124 comprend un élément de base 1241 qui est solidaire d'une tige filetée 1242 et qui est immobilisé sur le boîtier 110 au moyen d'une vis 1243 qui définit l'axe X124. Un moyeu 1244 est vissé sur la tige filetée 1242. Ce moyeu supporte deux galets 1245 et 1246 montés rotatifs sur le moyeu 1244 autour d'un axe A124 dont l'orientation par rapport au boîtier 110 est variable.The suspension member 124 comprises a base member 1241 which is integral with a threaded rod 1242 and which is immobilized on the housing 110 by means of a screw 1243 which defines the axis X124. A hub 1244 is screwed onto the threaded rod 1242. This hub supports two rollers 1245 and 1246 rotatably mounted on the hub 1244 about an axis A124 whose orientation relative to the housing 110 is variable.

En effet, comme cela ressort de la figure 7, les galets 1245 et 1246 sont monté sur un arbre commun 1247, formé d'une vis 1247A et d'un manchon fileté 1247B, qui est reçu dans un logement 1248 à section circulaire qui comprend une partie centrale dont le diamètre est ajusté par rapport au diamètre de l'arbre 1247 et qui s'évase en direction des galets 1245 et 1246. En d'autres termes, le logement 1248 est en forme de diabolo. Ainsi, l'arbre 1247 peut pivoter autour d'un axe Z124 qui est perpendiculaire à l'axe X124 et constitue un axe longitudinal pour les pièces 1241, 1242 et 1244. Cette construction permet aux galets 1245 et 1246 de suivre un virage ou une zone courbe du rail 50 lors des déplacements du chariot 100 le long du rail 50 dans le sens des flèches F1 et F2.Indeed, as is apparent from the figure 7 the rollers 1245 and 1246 are mounted on a common shaft 1247, formed of a screw 1247A and a threaded sleeve 1247B, which is received in a circular section housing 1248 which comprises a central portion whose diameter is adjusted relative to the diameter of the shaft 1247 and which flares towards the rollers 1245 and 1246. In other words, the housing 1248 is diabolo-shaped. Thus, the shaft 1247 can pivot about an axis Z124 which is perpendicular to the axis X124 and constitutes a longitudinal axis for the parts 1241, 1242 and 1244. This construction allows the rollers 1245 and 1246 to follow a bend or turn. curved region of the rail 50 during the movements of the carriage 100 along the rail 50 in the direction of the arrows F1 and F2.

L'organe 126 est identique à l'organe 124 et comprend un élément de base 1261 immobilisé par une vis 1263 sur le boîtier 110 ainsi qu'un moyeu 1264 vissé sur une tige filetée 1262 et sur lequel sont montés deux galets 1265 et 1266 reliés par un arbre 1267 reçu dans un logement 1268 du moyeu 1264.The member 126 is identical to the member 124 and comprises a base member 1261 immobilized by a screw 1263 on the housing 110 and a hub 1264 screwed onto a threaded rod 1262 and on which are mounted two rollers 1265 and 1266 connected by a shaft 1267 received in a housing 1268 of the hub 1264.

Les galets 1245 et 1265 sont prévus pour rouler sur une piste 51 ménagée à l'intérieur du rail 50, alors que les galets 1246 et 1266 sont prévus pour rouler sur une autre piste 52 ménagée également à l'intérieur du rail. Les pistes 51 et 52, sont ménagées de part et d'autre d'une fente 53 de passage des moyeux 1244 et 1264.The rollers 1245 and 1265 are provided for rolling on a track 51 formed inside the rail 50, while the rollers 1246 and 1266 are provided for rolling on another track 52 also formed inside the rail. The tracks 51 and 52 are formed on either side of a slot 53 for passing the hubs 1244 and 1264.

Les pistes 51 et 52 constituent les surfaces supérieures de deux ailes 54 et 55 du rail 50 entre lesquelles est définie la fente 53. Les surfaces inférieures 56 et 57 des ailes 54 et 55, c'est-à-dire leurs surfaces opposées aux pistes 51 et 52, constituent ensemble une surface de roulement pour la roue de friction 112.The tracks 51 and 52 constitute the upper surfaces of two wings 54 and 55 of the rail 50 between which is defined the slot 53. The lower surfaces 56 and 57 of the wings 54 and 55, that is to say their surfaces opposite the tracks 51 and 52, together constitute a rolling surface for the friction wheel 112.

Le chariot 100 comprend également un berceau 150 réalisé à partir de plusieurs bandes de tôle pliées et découpées. Le berceau 150 comprend un corps principal 151 dont on note A151 un axe longitudinal. Le corps 151 est à section transversale en U à fond plat retourné. Un cavalier 152, également à section en U à fond plat retourné, est fixé sur le corps 151 à proximité de son extrémité avant 1512. Le cavalier 152 supporte une patte 153 dans laquelle sont ménagées deux ouvertures 1532 et 1534 de réception de crochets non représentés fixés en partie haute du rideau 10. A proximité de son extrémité arrière 1514, le corps principal 151 porte un deuxième cavalier 154 pourvu d'une ouverture 1542 de réception d'un crochet non représenté fixé sur le rideau. Ainsi, la partie supérieure gauche du rideau peut être solidarisée avec le berceau 150 en engageant des crochets dans les ouvertures 1532, 1534 et 1542. La partie de rideau accrochée sur le berceau, à savoir son premier pan P11, masque le berceau 150 et le boîtier 110.The carriage 100 also comprises a cradle 150 made from several folded and cut sheet metal strips. The cradle 150 comprises a main body 151 of which A151 is a longitudinal axis. The body 151 has a U-shaped cross section with a flat bottom returned. A jumper 152, also with inverted flat-bottomed U-section, is fixed on the body 151 near its front end 1512. The rider 152 supports a tab 153 in which are formed two openings 1532 and 1534 for receiving unrepresented hooks. fixed at the top of the curtain 10. Near its rear end 1514, the main body 151 carries a second rider 154 provided with an opening 1542 for receiving a not shown hook fixed on the curtain. Thus, the upper left part of the curtain can be secured to the cradle 150 by engaging hooks in the openings 1532, 1534 and 1542. The curtain part hung on the cradle, namely its first pan P11, masks the cradle 150 and the housing 110.

Le berceau 150 est équipé de deux patins 155 et 156 à section transversale en T et qui sont destinés à être engagés dans le volume intérieur V50 du rail 50, comme les galets mentionnés ci-dessus. Les ailes 1552, 1554, 1562 et 1564 des patins 155 et 156 sont prévues pour glisser sur les pistes 51 et 52.The cradle 150 is equipped with two pads 155 and 156 with a T-shaped cross-section and intended to be engaged in the internal volume V50 of the rail 50, like the rollers mentioned above. The wings 1552, 1554, 1562 and 1564 of the pads 155 and 156 are provided for sliding on the tracks 51 and 52.

Les patins 155 et 156 sont montés pivotant, par rapport au corps 151, autour d'axes Z155 et Z156 qui sont perpendiculaires à l'axe A151 et au voile supérieur 1513 de ce corps correspondant au fond plat du rail. L'orientation variable des patins 155 et 156 par rapport à l'axe A151 leur permet de suivre un virage du rail 50.The pads 155 and 156 are pivotally mounted, relative to the body 151, about axes Z155 and Z156 which are perpendicular to the axis A151 and the upper web 1513 of this body corresponding to the flat bottom of the rail. The variable orientation of the shoes 155 and 156 relative to the axis A151 allows them to follow a turn of the rail 50.

Le voile supérieur 1513 du corps 151 est percé de trois ouvertures, à savoir une ouverture centrale 1515 de passage de la roue 112, une ouverture avant 1516 de passage du moyeu 1244 et une ouverture arrière 1517 de passage du moyeu 1264.The upper web 1513 of the body 151 is pierced with three openings, namely a central opening 1515 for passage of the wheel 112, a front opening 1516 for the passage of the hub 1244 and a rear opening 1517 through which the hub 1264 passes.

Par ailleurs, le boîtier 110 est pourvu, de part et d'autre de la roue 112, de deux joues 128 et 130 qui définissent entre elles et la roue 112 deux zones Z1 et Z2 de réception partielle des côtés 1518 et 1519 du corps 151.Furthermore, the housing 110 is provided, on either side of the wheel 112, with two cheeks 128 and 130 which define between them and the wheel 112 two zones Z1 and Z2 partially receiving the sides 1518 and 1519 of the body 151. .

Ainsi, il est possible de monter le berceau 150 sur le boîtier 110 dans la configuration des figures 3 et 4 où la roue 112 traverse l'ouverture 1515 alors que les moyeux 1244 et 1264 traversent les ouvertures 1516 et 1517 et que les côtés 1518 et 1519 du corps 151 sont reçues dans les zones Z1 et Z2.Thus, it is possible to mount the cradle 150 on the housing 110 in the configuration of the figures 3 and 4 where the wheel 112 passes through the opening 1515 while the hubs 1244 and 1264 pass through the openings 1516 and 1517 and the sides 1518 and 1519 of the body 151 are received in the zones Z1 and Z2.

Dans cette configuration, les galets 1245, 1246, 1265 et 1266 et les patins 155 et 156 peuvent être reçus en même temps dans le volume intérieur V50 du rail 50, en étant en appui sur les pistes 51 et 52.In this configuration, the rollers 1245, 1246, 1265 and 1266 and the shoes 155 and 156 can be received at the same time in the interior volume V50 of the rail 50, bearing on the tracks 51 and 52.

Ainsi, le boîtier 110 et le berceau 150 sont suspendus au rail 50 par les organes 124, 126, d'une part, 155 et 156, d'autre part, et ce, de façon indépendante l'un de l'autre.Thus, the housing 110 and the cradle 150 are suspended from the rail 50 by the members 124, 126, on the one hand, 155 and 156, on the other hand, and independently of one another.

Dans cette configuration la roue de friction 112 est en appui contre la surface de roulement formée des surfaces 56 et 57 et, lorsqu'elle est entraînée par le moteur 116 et le réducteur 118, elle peut déplacer le boîtier 110 le long du rail 50, vers l'avant dans le sens de la flèche F1 ou vers l'arrière dans le sens de la flèche F2. En se déplaçant vers l'avant, dans le sens de la flèche F1, le boîtier 110 vient, par le moyeu 1244, en appui contre le bord avant 1516A de l'ouverture 1516. Au contraire, lorsque le boîtier se déplace dans le sens de la flèche F2, le moyeu 1264 vient en appui contre le bord arrière 1517B de l'ouverture 1517. Les organes de suspension 124 et 126, et plus particulièrement leurs moyeux 1244 et 1264, servent donc à transmettre un effort F3 de déplacement du boîtier 110 au berceau 150, le long du rail 50.In this configuration, the friction wheel 112 bears against the rolling surface formed by the surfaces 56 and 57 and, when it is driven by the motor 116 and the gearbox 118, it can move the housing 110 along the rail 50, forward in the direction of arrow F1 or backwards in the direction of arrow F2. Moving forward, in the direction of the arrow F1, the housing 110 comes, by the hub 1244, bearing against the front edge 1516A of the opening 1516. On the contrary, when the housing moves in the direction of the arrow F2, the hub 1264 bears against the rear edge 1517B of the opening 1517. The suspension members 124 and 126, and more particularly their hubs 1244 and 1264, thus serve to transmit a force F3 for moving the housing 110 to the cradle 150, along the rail 50.

Les ouvertures 1516 et 1517 présentent chacune une longueur L151, parallèle à l'axe A151 et une largeur ℓ151 perpendiculaire à cet axe qui sont supérieures aux dimensions des moyeux 1244 et 1265 mesurées parallèlement à un axe longitudinal A110 du boîtier 110 et perpendiculairement à cet axe. Il existe donc une possibilité de déplacement relatif entre le boîtier 110 et le berceau 150 lorsque le berceau 150 est monté sur le boîtier 110, comme représenté par les flèches F4 et F5 à la figure 4. Cette possibilité de déplacement relatif permet l'ajustement de la position relative du boîtier 110 et du berceau 150 en particulier lors du passage de virages du rail 50. Ceci évite en outre, de transmettre au boîtier 110, donc à la roue 112, des efforts parasites dus au déplacement successif des pans P11 à P16, ainsi que le couple de basculement dû au poids du rideau qui s'exerce de façon décalée par rapport aux axes A110 et A151. Lorsque les dimensions de ces ouvertures 1516 et 1517 permettent le passage des galets 1245 et 1265, le berceau 150 peut être monté sur le boîtier après l'installation des organes de suspension 124, 126 sur le boîtier 110. Dans le cas contraire, les organes de suspension 124, 126 peuvent être mis en place après le montage du berceau 150 sur le boîtier 110.The openings 1516 and 1517 each have a length L151, parallel to the axis A151 and a width ℓ151 perpendicular to this axis which are greater than dimensions of the hubs 1244 and 1265 measured parallel to a longitudinal axis A110 of the housing 110 and perpendicular to this axis. There is therefore a possibility of relative displacement between the housing 110 and the cradle 150 when the cradle 150 is mounted on the housing 110, as represented by the arrows F4 and F5 at the figure 4 . This possibility of relative displacement makes it possible to adjust the relative position of the housing 110 and of the cradle 150, in particular during the passage of turns of the rail 50. This also avoids the need to transmit to the casing 110, and therefore to the wheel 112, efforts parasites due to the successive displacement of the sections P11 to P16, as well as the tilting torque due to the weight of the curtain which is exerted shifted with respect to the axes A110 and A151. When the dimensions of these openings 1516 and 1517 allow the passage of the rollers 1245 and 1265, the cradle 150 can be mounted on the housing after the installation of the suspension members 124, 126 on the housing 110. Otherwise, the bodies suspension 124, 126 can be put in place after mounting the cradle 150 on the housing 110.

Les axes Z124, Z126, Z155 et Z156 sont normalement perpendiculaires aux pistes 51 et 52, au fait près que les organes 124 et 126 peuvent pivoter, avec une amplitude limitée par la longueur L151, autour des axes X124 et X126. En pratique, cette possibilité de pivotement est inférieure à 20°, de sorte que les axes Z124 et Z126 peuvent être considérées globalement perpendiculaires aux pistes 51 et 52. En outre, les axes Z124, Z126, Z155 et Z156 sont perpendiculaires à l'axe X112.The axes Z124, Z126, Z155 and Z156 are normally perpendicular to the tracks 51 and 52, since the members 124 and 126 can pivot, with an amplitude limited by the length L151, about the axes X124 and X126. In practice, this possibility of pivoting is less than 20 °, so that the Z124 and Z126 axes can be considered generally perpendicular to the tracks 51 and 52. In addition, the axes Z124, Z126, Z155 and Z156 are perpendicular to the axis X112.

Le long de l'axe A110, les organes 124 et 126 sont disposés de part et d'autre des organes 155 et 156, eux-mêmes disposés de part et d'autre de la roue 112. Ceci confère une bonne stabilité au chariot 100, y compris lors de ses déplacements.Along the axis A110, the members 124 and 126 are disposed on either side of the members 155 and 156, themselves arranged on either side of the wheel 112. This gives the trolley 100 good stability. , including when traveling.

Le poids du boîtier 110 et des éléments qu'il inclut est constant au cours du fonctionnement du chariot 100 et les organes de suspension 124 et 126 reprennent uniquement ce poids. Ce poids est connu et stable. Les dimensions de la roue 112 et des organes 124 et 126 sont choisies pour que l'effort de contact entre la roue de friction et la surface de roulement constituée des surfaces 56 et 57 soit suffisant pour éviter, ou du moins limiter dans une large mesure, les glissements entre la roue 112 et la surface de roulement.The weight of the housing 110 and the elements it includes is constant during operation of the carriage 100 and the suspension members 124 and 126 only take this weight. This weight is known and stable. The dimensions of the wheel 112 and the members 124 and 126 are chosen so that the contact force between the friction wheel and the running surface consisting of the surfaces 56 and 57 is sufficient to avoid, or at least limit to a large extent , sliding between the wheel 112 and the running surface.

Par ailleurs, le poids du rideau 10 en mouvement, c'est-à-dire de la partie entraînée du rideau, qui est variable en fonction de la position du chariot 100 le long du rail 50, est repris par les différents chariots 20 de support du rideau. La variation de ce poids n'influe donc pas sur la qualité de l'effort de contact entre la roue 112 et la surface de roulement.Moreover, the weight of the curtain 10 in movement, that is to say of the driven part of the curtain, which is variable according to the position of the carriage 100 along the rail 50, is taken up by the various carriages 20 of curtain support. The variation of this weight does not affect the quality of the contact force between the wheel 112 and the running surface.

Le poids du premier pan P11 de rideau est exclusivement repris par le berceau 150 et les patins 155 et 156. Lors d'un déplacement du boîtier 110 par rapport au berceau, le berceau vient déplacer l'axe Z126 de l'organe de suspension 126 en appuyant, au moyen du bord de l'ouverture 1517 opposé au bord 1517A, contre le moyeu 1264. Ceci fait basculer l'organe 126 dans le sens horaire à la figure 3 et, par cela, influe sur l'effort de contact entre la roue 112 et la piste de roulement formée des surfaces 56 et 57, selon l'approche envisagée dans WO-A-2012/004530 . En effet, le basculement de l'organe 126 autour de l'axe X126 a pour effet de rapprocher l'axe A126 de l'axe X112 selon une direction perpendiculaire aux surfaces 56 et 57 et d'augmenter ainsi cet effort de contact. Plus le poids du premier pan P11 de rideau et/ou de la partie de rideau entraînée est important, plus l'axe Z126 de l'organe de suspension 126 est déplacé par rapport à l'axe perpendiculaire, et plus l'effort de contact est important. Au contraire, pour des rideaux de faible poids, l'effort de contact est plus faible, ce qui permet une consommation électrique plus faible et une autonomie plus grande. Ainsi, comme dans WO-A-2012/004530 , l'effort de contact varie en fonction d'un effort résistant qui dépend de l'évolution de la charge tractée ou poussée par le chariot 100 lors de son déplacement.The weight of the first curtain pan P11 is exclusively taken up by the cradle 150 and the pads 155 and 156. When the casing 110 moves relative to the cradle, the cradle moves the axis Z126 of the suspension member 126. pressing, by means of the edge of the opening 1517 opposite the edge 1517A, against the hub 1264. This causes the member 126 to swing in a clockwise direction to the figure 3 and, thereby, influences the contact force between the wheel 112 and the raceway formed by the surfaces 56 and 57, depending on the approach envisaged in FIG. WO-2012/004530 . Indeed, the tilting of the member 126 about the axis X126 has the effect of bringing the axis A126 of the axis X112 in a direction perpendicular to the surfaces 56 and 57 and thereby increase this contact force. The greater the weight of the first curtain panel P11 and / or the driven curtain part, the more the axis Z126 of the suspension member 126 is displaced relative to the perpendicular axis, and the greater the contact force. is important. On the contrary, for curtains of low weight, the contact force is lower, which allows a lower power consumption and greater autonomy. So, as in WO-2012/004530 , the contact force varies according to a resistant force which depends on the evolution of the load pulled or pushed by the carriage 100 during its movement.

Les moyeux 1244 et 1246 sont à section circulaire et ils viennent en appui respectivement contre le bord avant 1516A de l'ouverture 1516 et contre le bord arrière 1517B de l'ouverture 1517 qui sont rectilignes, selon le sens de déplacement du chariot 100, pour transmettre un effort d'entraînement ou de traction F3 qui est dirigé vers l'avant dans l'exemple des figures 6 et 7. Cet effort F3 est tangent à un axe médian Y50 du rail 50. La transmission de l'effort de traction vers l'avant ou vers l'arrière a lieu à l'interface entre une surface circulaire d'un moyeu et un bord rectiligne d'une ouverture, ce qui permet de limiter les frottements perpendiculaires aux axes A110 et A151 qui sont normalement confondus et qui peuvent être légèrement désaxés dans les zones de virage du rail 50.The hubs 1244 and 1246 are circular in section and bear respectively against the front edge 1516A of the opening 1516 and against the rear edge 1517B of the opening 1517 which are rectilinear, in the direction of movement of the carriage 100, for transmit a F3 drive or pulling force that is directed forward in the example of figures 6 and 7 . This force F3 is tangent to a median axis Y50 of the rail 50. The transmission of the traction force forwards or backwards takes place at the interface between a circular surface of a hub and a straight edge of the rail. an opening, which makes it possible to limit the friction perpendicular to the axes A110 and A151 which are normally merged and which can be slightly misaligned in the turning zones of the rail 50.

Dans le deuxième mode de réalisation de l'invention représenté aux figures 8 et 9, les éléments analogues à ceux du premier mode de réalisation portent les mêmes références. Sauf mention contraire, ces éléments fonctionnent de la même manière que dans le premier mode de réalisation.In the second embodiment of the invention shown in Figures 8 and 9 elements similar to those of the first embodiment bear the same references. Unless otherwise stated, these elements function in the same manner as in the first embodiment.

Le chariot 100 de ce mode de réalisation comprend un boîtier 110 dans lequel est reçue une roue de friction 112 destinée à rouler sur une surface de roulement 56 prévue en partie inférieure d'un rail 50. La roue 112 est entraînée par un moteur 116 et un réducteur 118. Deux organes de suspension 124 et 126 équipent le boîtier 110 et sont pourvus de galets 1245 et 1265 destinés à rouler sur une piste 51 interne au rail 50.The carriage 100 of this embodiment comprises a housing 110 in which is received a friction wheel 112 intended to roll on a running surface 56 provided in the lower part of a rail 50. The wheel 112 is driven by a motor 116 and a gear reducer 118. Two suspension members 124 and 126 equip the housing 110 and are provided with rollers 1245 and 1265 intended to roll on a track 51 internal to the rail 50.

Un berceau 150 est prévu pour l'accrochage d'un rideau non représenté au moyen de pattes 153 et 154 percées d'ouvertures de passage de crochets montés sur le rideau. Ce berceau est équipé de deux organes de suspension 155 et 156 également pourvus de galets 1555 et 1556 prévus pour rouler sur la piste 51 du rail 50.A cradle 150 is provided for the attachment of a curtain, not shown, by means of tabs 153 and 154 pierced with openings for the passage of hooks mounted on the curtain. This cradle is equipped with two suspension members 155 and 156 also provided with rollers 1555 and 1556 provided for rolling on the track 51 of the rail 50.

Le chariot 110 est équipé de deux poussoirs 132 et 134 dont la surface extérieure, opposée à la roue 112, est arrondie et convexe. En pratique, la surface extérieure des poussoirs 132 et 134 est en tronçon de cylindre avec un axe vertical en configuration montée du chariot 100 sur le rail 50.The carriage 110 is equipped with two pushers 132 and 134 whose outer surface, opposite the wheel 112, is rounded and convex. In practice, the outer surface of the pushers 132 and 134 is in cylinder section with a vertical axis in the mounted configuration of the carriage 100 on the rail 50.

Le berceau 150 est, quant à lui, équipé de deux autres poussoirs 162 et 164 complémentaires des poussoirs 132 et 134 et qui présentent chacun une surface orientée vers le boîtier 110 qui est arrondie et convexe, comme la surface extérieure des poussoirs 132 et 134. Ainsi, l'effort de traction F3 entre le chariot 110 et le berceau 150 lorsque le chariot 110 se déplace dans le sens de la flèche F1 aux figures 8 et 9 est parallèle à une tangente à l'axe longitudinal Y50 du rail 50. Ceci permet d'annuler, dans une large mesure, une composante de cet effort normale à la courbure du rail 50, ce qui est avantageux car cette composante normale pourrait générer des frottements susceptibles de perturber le rendement de la transmission d'effort entre les parties 110 et 150 du chariot 100. Le choix de matériaux appropriés permet également de limiter ces frottements.The cradle 150 is, in turn, equipped with two other pushers 162 and 164 complementary pushers 132 and 134 and each having a surface facing the housing 110 which is rounded and convex, as the outer surface of the pushers 132 and 134. Thus, the traction force F3 between the carriage 110 and the cradle 150 when the carriage 110 moves in the direction of the arrow F1 to Figures 8 and 9 is parallel to a tangent to the longitudinal axis Y50 of the rail 50. This makes it possible to cancel, to a large extent, a component of this force normal to the curvature of the rail 50, which is advantageous because this normal component could generate friction likely to disturb the efficiency of the transmission of force between the parts 110 and 150 of the carriage 100. The choice of suitable materials also limits this friction.

Comme le montre la figure 9, lorsque les poussoirs avant 132 et 162 sont en contact, ils peuvent glisser l'un contre l'autre dans le sens de la double flèche F4 perpendiculairement à l'axe Y50 et à l'effort F3. En outre, dans cette position, les poussoirs arrière 134 et 164 ne sont pas en contact et peuvent donc se déplacer l'un par rapport à l'autre à la fois perpendiculairement à l'axe Y50, dans le sens de la double flèche F4, et parallèlement à cet axe, dans le sens de la double flèche F5.As shown in figure 9 when the front pushers 132 and 162 are in contact, they can slide against each other in the direction of the double arrow F4 perpendicularly to the axis Y50 and to the force F3. Furthermore, in this position, the rear pushers 134 and 164 are not in contact and can therefore move relative to each other both perpendicularly to the axis Y50, in the direction of the double arrow F4 , and parallel to this axis, in the direction of the double arrow F5.

L'invention a été représentée dans le premier mode de réalisation dans le cas où les organes 155 et 156 de suspension du berceau 150 sont formés par des patins. En variante, et comme représenté dans le deuxième mode de réalisation, ces organes de suspension peuvent comprendre des galets roulant sur les pistes du rail. En variante, les organes de suspension du boîtier du premier mode de réalisation ou du boîtier et du berceau du deuxième mode de réalisation peuvent comprendre des patins glissants.The invention has been shown in the first embodiment in the case where the members 155 and 156 for suspending the cradle 150 are formed by pads. Alternatively, and as shown in the second embodiment, these suspension members may comprise rollers rolling on the tracks of the rail. Alternatively, the suspension members of the housing of the first embodiment or the housing and the cradle of the second embodiment may comprise slippery pads.

Selon encore une autre variante, des ouvertures comparables à celles 1516 et 1517 du premier mode de réalisation peuvent être prévues sur le boîtier 110, pour le passage d'organes de suspension du berceau 150.According to yet another variant, openings comparable to those 1516 and 1517 of the first embodiment may be provided on the housing 110, for the passage of suspension members of the cradle 150.

Les caractéristiques techniques des modes de réalisation et variantes envisagés ci-dessus peuvent être combinées entre elles.The technical characteristics of the embodiments and variants envisaged above can be combined with each other.

Claims (15)

  1. A motor-driven carriage (100) for opening/closing a curtain (10), including a housing (110) that is provided with two members (124, 126) for suspending the housing from a rail (50) and wherein a friction wheel (112) is mounted, which is driven by an electric motor (116) and which comes into contact with at least one rolling surface (56, 57) of the rail, characterized in that said carriage (100) also comprises a cradle (150) provided, on the one hand, with two other members (155, 156) for suspending the cradle from the rail (50) that are independent of the suspension members (124, 126) of the housing (110) and, on the other hand, means (153, 154) for coupling to the curtain, and in that the cradle is mounted onto the housing (110) and is driven (F3) by the housing when the latter moves along the rail, the housing (110) and the cradle (150) being capable of relative movement (F4, F5).
  2. The carriage according to claim 1, characterized in that the suspension members (124, 126) of the housing (110) withstand only the weight of the housing and the elements (112, 116, 118, 120, 122) it contains, that weight being constant, whereas the suspension members (155, 156) of the cradle (150) withstand the driven weight, that weight being variable based on the position of the carriage (100) along the rail (50).
  3. The carriage according to one of the preceding claims, characterized in that a first element (150), among the housing (110) and the cradle (150), is provided with at least one opening (1516, 1517) for the passage, with play (F4, F5), of a part (1244, 1264) belonging to or integral with the second element (110), among the housing and the cradle.
  4. The carriage according to claim 3, characterized in that the first element (150) comprises two openings (1516, 1517), in each of which a suspension member (124, 126) for the second element (110) is engaged with play (F4, F5).
  5. The carriage according to claim 4, characterized in that the first element (150) is capable of moving at least one suspension member (126) relative to the second element (110), by varying a contact force between the friction wheel (112) and the rolling surface (56, 57).
  6. The carriage according to one of claims 4 or 5, characterized in that each opening (1516, 1517) has, in a longitudinal direction (A151) parallel to a direction of movement (F1, F2) of the carriage and in a transverse direction perpendicular to the direction of movement of the carriage, dimensions (L151, ℓ151) strictly larger than the dimensions, along the two longitudinal and transverse directions, of a part (1244, 1264) of the suspension member (124, 126) that is received in that opening.
  7. The carriage according to one of claims 4 to 6, characterized in that the first element is the cradle (150), which is provided with a third passage opening (1515) for the friction wheel (112), and in that the second element is the housing.
  8. The carriage according to claim 7, characterized in that the third passage opening (1515) is situated, along a longitudinal axis (A151) of the cradle (150), between the two passage openings (1516, 1517) of the suspension members (124, 126) of the housing (110).
  9. The carriage according to one of the preceding claims, characterized in that in the mounted configuration of the carriage (100), the suspension members (124, 126) of the housing (110) are positioned, along the longitudinal axis (A110) of the housing, on either side of the suspension members (155, 156) of the cradle (150), which in turn are positioned, along that axis, on either side of the friction wheel (112).
  10. The carriage according to one of the preceding claims, characterized in that the cradle (150) is mounted on the carriage (110) with a possibility of relative movement (F5) in a direction parallel to a longitudinal axis (A110) of the carriage and in a direction (F4) perpendicular to that axis.
  11. The carriage according to one of the preceding claims, characterized in that each suspension member (124, 126) of the housing (110) and/or each suspension member (155, 156) of the cradle (150) is equipped with at least one roller (1245, 1246, 1265, 1266) or at least one skid (155, 156) interacting with a track (51, 52) of the rail, and in that that roller or that skid is articulated, relative to the housing (110) and/or the cradle (150), around an axis (Z124, Z126, Z155, Z156) globally perpendicular to the track (51, 52) of the rail (50) in the configuration of the carriage mounted on the rail and perpendicular to the axis (X112) of rotation of the friction wheel (112).
  12. The carriage according to claim 11, characterized in that at least one suspension member (124, 126) comprises two rollers (1245, 1246, 1265, 1266) articulated on a support (12644, 1264) positioned between those rollers, using a shaft (1247, 1267) received in a circular housing (1248, 1268) of the support, and in that that housing has an increasing section toward the rollers.
  13. The carriage according to one of the preceding claims, characterized in that the cradle (150) is provided with a passage opening (1515) for the friction wheel (112).
  14. The carriage according to one of the preceding claims, characterized in that the housing (110) defines at least one volume (Z1, Z2) for partially receiving the cradle (150).
  15. Installation (I) for blacking out an opening comprising a rail (50), a motor-driven carriage (100) according to one of the preceding claims and a curtain (10) coupled on the cradle (150) of the carriage.
EP13708730.0A 2012-02-28 2013-02-27 Motor-driven carriage, and blackout equipment including such a carriage Active EP2819556B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1251801A FR2987249B1 (en) 2012-02-28 2012-02-28 MOTORIZED TROLLEY AND OCCULTATION INSTALLATION INCLUDING SUCH TROLLEY
PCT/EP2013/053955 WO2013127872A1 (en) 2012-02-28 2013-02-27 Motor-driven carriage, and blackout equipment including such a carriage

Publications (2)

Publication Number Publication Date
EP2819556A1 EP2819556A1 (en) 2015-01-07
EP2819556B1 true EP2819556B1 (en) 2016-02-24

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EP13708730.0A Active EP2819556B1 (en) 2012-02-28 2013-02-27 Motor-driven carriage, and blackout equipment including such a carriage

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US (1) US9320379B2 (en)
EP (1) EP2819556B1 (en)
CN (1) CN104244775B (en)
FR (1) FR2987249B1 (en)
WO (1) WO2013127872A1 (en)

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EP2819556A1 (en) 2015-01-07
FR2987249A1 (en) 2013-08-30
US20150041079A1 (en) 2015-02-12
CN104244775B (en) 2017-04-05
WO2013127872A1 (en) 2013-09-06
FR2987249B1 (en) 2015-05-15
CN104244775A (en) 2014-12-24
US9320379B2 (en) 2016-04-26

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