EP2393402B1 - Drive carriage for a sliding curtain - Google Patents

Drive carriage for a sliding curtain Download PDF

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Publication number
EP2393402B1
EP2393402B1 EP10708297A EP10708297A EP2393402B1 EP 2393402 B1 EP2393402 B1 EP 2393402B1 EP 10708297 A EP10708297 A EP 10708297A EP 10708297 A EP10708297 A EP 10708297A EP 2393402 B1 EP2393402 B1 EP 2393402B1
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EP
European Patent Office
Prior art keywords
carriage
hinge
wheels
portions
axis
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
Application number
EP10708297A
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German (de)
French (fr)
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EP2393402A1 (en
Inventor
Rich Scharf
Scot Cochran
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Somfy SA
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Somfy SA
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Publication date
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Publication of EP2393402A1 publication Critical patent/EP2393402A1/en
Application granted granted Critical
Publication of EP2393402B1 publication Critical patent/EP2393402B1/en
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Anticipated expiration legal-status Critical

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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
    • A47H15/00—Runners or gliders for supporting curtains on rails or rods
    • A47H15/02—Runners
    • 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
    • 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
    • A47H2001/045—Curtain rails being curved

Definitions

  • the invention relates to the field of solar protection or closure systems, and in particular that of sliding curtains.
  • These curtains are generally fixed on a set of several pads, mounted on a pair of carrying wheels and comprising a curtain attachment element, which can move along a rail.
  • a carriage is driven along the rail by means of a belt or cord under a manual actuation action or under the action of an electromechanical actuator.
  • the movement of the carriage causes the movement of the different pads, either by means of the curtain itself, or by cords connecting the first pad to the carriage and each pad to the next.
  • each curtain is driven by a carriage.
  • the carriage also allows for the connection between the two ends of the belt, the latter thus forming an endless drive element between two drive pulleys.
  • Motorized curtains are commonly used in hotel rooms or conference centers, ie in places often designed by architects with a sought-after aesthetic.
  • the curtains are mounted in front of non-planar openings and / or themselves follow a curve to satisfy the aesthetics of the place.
  • the document GB-A-735 305 discloses an articulated carriage adapted to pass curves of the rail, said carriage having all the features of the preamble of claim 1.
  • the carriage is made from a flexible strip on which are mounted plates equipped with vertical and horizontal wheels. The carriage is thus able to roll along a V-rail on a plurality of wheels, while accepting distortions in a plane perpendicular to its longitudinal axis, for the passage of the curves of the rail.
  • the curtain is also mounted on single pads with a single pair of wheels on the same axis perpendicular to the rail.
  • the different subassemblies of the carriage can be articulated by means of hinges.
  • the document GB-A-735 305 does not give additional details on this construction.
  • JP-A-04 079916 discloses a linear type motorization system in which a curtain drive carriage is also composed of several subassemblies articulated through hinges.
  • articulated carriages are particularly interesting for use on curved rails. However they may lack rigidity for the passage of rectilinear portions of the rail, which may cause significant friction if the carriage bends or twists when it is not necessary. Furthermore, the state of the art does not provide for adapting the carriage according to the configuration of the rail or the length and tension of its drive belt.
  • the invention therefore proposes to remedy the aforementioned problems and to provide a trolley structure meeting the technical and modularity requirements sought in the field of sliding curtain driving.
  • the carriage according to the invention comprises a trolley part called said front trolley, and a second trolley part, called a rear trolley, the two trolley parts being able to move along a rail thanks to carrying wheels and which are connected by a piece of articulation.
  • This carriage also comprises means for mounting the articulation piece in at least two positions with respect to one of the first and second parts of the carriage.
  • This carriage is characterized in that it comprises means for adjusting the mounting of the articulation piece for the different mounting positions.
  • the distance between the parts of the carriage can be adjusted, in particular as a function of the length of the drive belt of the carriage, which allows in particular to adjust the tension of this belt.
  • the total length of the carriage is variable depending on its mounting environment and the various constituent parts of the carriage can be mounted at varying distances from each other.
  • a rigid body of the first part of the carriage ensures the transmission of drive forces without creating misalignment with respect to the rail and the articulated mounting of the components of the carriage allows the passage of curvatures of the rail.
  • a first means of articulation of the carriage comprises a support of at least one of the carrying wheels of the front carriage, pivotally mounted relative to the carriage, about an axis perpendicular to the axis of rotation of the wheel.
  • At least one trolley portion comprises at least one second wheel which rotates about a fixed axis relative to the rigid body, and ensuring the stability of the carriage vis-à-vis the rail.
  • This stability is all the more important that, on the trolley part, can be fixed one or more tabs of the curtain, whose offset creates a cantilever compared to the front carriage.
  • This tab or these brackets are used to fix an edge of the curtain in front of the carriage, so as to cover the other curtain edge without daylight in the case of two curtain panels closing one towards the other.
  • the carriage is made from two moving parts relative to each other in a direction perpendicular to the direction of movement of the carriage, so as to accept the curvature of the guide rail.
  • the combination of the first mounting pivot of the wheel and the articulated connection between the two moving parts allows the passage of curved rail portions, including when the radius of curvature is small.
  • the carriage according to the invention makes it possible to solve a double constraint: an articulation of the carriage combined with a rigid and solid attachment of the two ends of the belt.
  • the assembly of the various parts of the carriage is very simple, it does not require fragile parts linking different parts together.
  • the assembly of the various parts of the trolley can be done on site, thus making it possible to configure the trolley for a right or left curvature of the rail.
  • the assembly of the belt on at least one of the parts of the carriage can be done without stress outside the rail, the tension of the belt is achieved simply during assembly of the connecting piece.
  • At least a first carriage portion is mounted on a plurality of wheel pairs, thereby ensuring the stability of the carriage portion, independently of other parts forming the carriage, that is to say the second carriage part and the hinge means. This stability is ensured in the longitudinal direction of displacement of the carriage, as well as in the perpendicular direction, along the axis of the wheels, due to the presence of a pair of wheels, each wheel of a pair being arranged on the side and on the other side of the longitudinal axis of the trolley.
  • a particular embodiment of the connecting piece or its assembly with respect to the parts of the carriage also makes it possible to compensate for variations in height along the rail, that is to say makes it possible to ensure movements of the carriage in a plane perpendicular to the joint.
  • the figure 1 is a partial schematic view of an obscuration installation of a bay which comprises a curtain (not shown) and driven by a drive carriage 1 secured to two ends of a belt 12, itself driven by a pulley not shown moved by an actuator, also not shown, such as an electric motor.
  • a rail 10 guides the trolley 1 during the opening and closing movements of the curtain R.
  • the rail 10 has a substantially rectangular section forming, on the bottom surface, guides 14 and 15 for the belt 12 folded on itself and guides 16 and 17 for wheels of the carriage, and a longitudinal opening 18 for the passage of the body of the trolley itself.
  • the carriage comprises two parts 20 and 21, respectively front and rear, assembled to one another by a connecting piece 22.
  • the concepts "before” and “back” are conventions corresponding to the movement of the trolley 1 from right to left at the figure 1 , being recalled here that the carriage can also move in opposite directions along the rail 10.
  • the first pair of wheels 25 is pivotally mounted relative to the body 20a of the front carriage 20 around an axis Z 20 perpendicular to a longitudinal axis X 20 of the front carriage 20 taken in the direction of advance of the front carriage 20 along the rail 10.
  • the axis Z 20 is substantially vertical when the carriage 1 is supported by the rail 10 which is horizontal.
  • it is the second pair of wheels 26 which is pivotally mounted about an axis parallel to the axis Z 20 .
  • the pair of pivotable wheels is mounted on a substrate 20d, with possibility of rotation about a Y-axis 20 perpendicular to the Z axis 20.
  • the support 20d is itself mounted on the body 20a with the possibility of rotation about the Z axis 20 .
  • the Y axis 20 therefore has a variable orientation with respect to the X axis 20 .
  • the first pair of swivel wheels can thus pivot about the Z axis 20 , as represented by the double arrow F 1 to the figure 3 , and allow the operation of the trolley before along curved rails. This remains applicable (to the axis references close) in the case where the second pair of wheels is pivotally mounted.
  • the body 20a of the front carriage 20 is rigid.
  • the second pair of wheels 26 of the front carriage 20 allows, in combination with the first pair of wheels 25, to ensure the stability of the front carriage in the rail 10.
  • the front carriage can be connected to a lug 100 of the curtain, this tab extending cantilever relative to the body of the front carriage.
  • the trace of the curtain is visible with the reference R.
  • the tilting torque exerted on the trolley portion 20 may be important, especially when added to the weight of the curtain R attached to the bracket.
  • the wheels of the second pair of wheels can then be in contact with the upper edge of the rail.
  • the wheels of the second pair of wheels 26 are rotating about a Y 'axis 20 perpendicular to the axes X 20 and Z 20 and fixed relative to the body 20a.
  • the front carriage 20 is connected to the second carriage part 21, called the "rear carriage", by the connecting piece 22.
  • the connecting piece 22 is in the form of a rigid part mounted, on the one hand, on the front carriage 20, in a notch 20b provided for this purpose, and secondly, on the rear carriage 21, in at least one notch 21 b.
  • the body 21 of the rear carriage 21 is rigid and its wheels 27 are rotated about a Y axis 21 fixed relative to this body.
  • the bodies 20a and 21 has front and front carriages can be made of metal or rigid plastic material.
  • the figure 3 shows in perspective the constituent parts of the drive carriage 1 previously described.
  • the pairs of wheels 25, 26 and 27 are visible.
  • the figure 4 shows a side view of the connecting piece insulated from the rest of the carriage 1.
  • This connecting piece is made of metal or rigid plastic material. It comprises a plane main sail 221, from which extends a first end 22a of the piece 22 folded and rounded. The insertion of this end 22a into the notch 20b of the front carriage forms a hinge-type articulation between the connecting piece 22 and the front carriage 20. In other words, thanks to this articulation, the piece 22 can pivoting relative to the body 20a about an axis parallel Z 22 to the axis Z 20 .
  • the Z 20 and Z 22 axes thus constitute two axes of joints parallel to each other. These axes are perpendicular to the axes of rotation of the wheels 25 and 26 and to a longitudinal axis of the carriage coincident with the X axis 20 when the parts 20 and 21 are aligned.
  • the components of the carriage 1 that are, on the one hand, the pair of wheels 25 and, on the other hand, the rear carriage 21 are hinged by the means 20d and 22 on the body 20 of the front carriage.
  • the connecting piece 22 At the other end of the web 221 of the connecting piece 22 are two tabs 22b and 22c folded at right angles to the web 221, so as to be able to penetrate into corresponding notches 21b and 21c of the rear carriage 21.
  • a central and straight intermediate tab 22d extends in the extension of the web 221, between the tabs 22b and 22c.
  • This leg has a 22e hole.
  • this intermediate lug extends along the body 21a of the rear carriage 21 and can be fixed, for example by a screw passing through the hole 22e and engaged in a corresponding tapping 21d of the rear carriage 21.
  • the part 22 forms a means of articulation between these parts of the carriage 1, insofar as the end 22a is articulated in the notch 20b.
  • the first portion 20 and the second portion 21 of the carriage are spaced from each other by a distance d imposed by the connecting piece 22.
  • the tabs 22b and 22c are engaged in the notches 21b and 21 c.
  • a second thread 21 d ' is provided, at the distance of the tapping 21 d, to receive a screw passing through the hole 22e when the tabs 22b and 22c are engaged in the notches 21 b' and 21 c '.
  • This system of double mounting position of the connecting piece 22 on the rear carriage 21 makes it possible to adjust the total length L 1 of the rectilinear carriage parallel to the direction of the rail 10, and in particular to adjust the distance between the dots. hooks the ends of the belt 12 on each trolley portion 20 or 21.
  • the rear carriage 21 requires only one pair of wheels 27. It could however be equipped with two pairs of wheels, possibly including a pair swivel wheels, like the front cart.
  • the use of two pairs of wheels on at least one of the parts 20 or 21 of the carriage 1 makes it possible to ensure the maximum stability, whatever the load carried, as well as to minimize the friction, in particular when the weight of the curtain is important.
  • the use of flexible wheels, made of plastic or rubber-lined, for example, makes it possible to minimize the noise of the rolling on the rail 10.
  • the rear carriage 21 carries a ring 30 for supporting the curtain.
  • This eyelet 30 makes it possible to hang a portion of the curtain to the carriage 1 to drive it along the rail 10.
  • the eyelet can be mounted in a manner known removably on the rear carriage 21.
  • Various other types of supports could to be connected to the carriage 1 instead of the eyelet, for example a hook, a ring or any other attachment means suitable for finishing the curtain.
  • the connecting piece 22 itself can incorporate another degree of freedom in the connection with or between the parts 20 and 21 of the carriage.
  • This additional degree of freedom may allow the compensation of variations in the height of the rail and / or add to the flexibility of the carriage to adjust to the curvatures of the rail (for example by the introduction of a hinge at the part level linkage itself) especially for small radius bends.
  • This additional degree of freedom may be present only at one of the fixing areas of the connecting piece 22 on one of the parts 20 and 21 of the carriage.
  • the notch 20b may be provided more extensive, for example in height, that is to say parallel to the Z axis 20 , than it is necessary to receive the folded end 22a of the piece of link 22.
  • the connecting piece 22 can move slightly sloping in height relative to the front carriage 20 or vice versa.
  • the part 22 can be mounted with a degree of freedom with respect to each of the parts 20 and 21 of the carriage 1.
  • the figure 5 represents the rear carriage alone.
  • This figure shows the following elements: the first pair of notches 21b, 21c intended to receive the folded tabs 22b and 22c of the connecting piece 22 in the first mounting position shown in FIG. figure 1 and the second pair of notches 21b 'and 21c' used to receive the tabs 22b and 22c in the second position shown in FIG. figure 3 , which makes it possible to adjust the distance between the front carriage 20 and the rear carriage 21.
  • more than two sets of notches can be provided, which makes it possible to use three or more mounting positions of the part 22 on the front carriage 21.
  • a single notch could be provided if, correspondingly, the connecting piece 22 has only one folded tab, for example a central folded tab.
  • the two threads 21d and 21d ' are used for fixing the connecting piece 22 on the rear carriage 21 by means of a screw, in the two configurations provided by the pairs of notches.
  • these threads are replaced by smooth holes and the screw passes through the body 21a of the carriage 21 from one side to cooperate with a nut reported against the face of the body 21 opposite to that visible to the figure 5 .
  • the pairs of notches 21b and 21c or 21b 'and 21c' may also be provided wider, parallel to the length of the carriage 1, necessary to accommodate the legs 22b and 22c, and the hole 22e of the leg central can be brought opposite an oblong hole on the rear carriage21. Thus, a fine adjustment of the position is possible for each mounting position.
  • the figure 5 also shows a fastening means 21f of one end of the belt 12.
  • This fixing means 21f is not detailed but can cooperate with an intermediate piece holding one end of the belt 12 at the rear carriage, in a manner known in itself.
  • a corresponding fixing means 20f is also provided on the front carriage 20 to fix the other end of the belt 12.
  • the invention has been shown with a single pair of castor wheels 25.
  • one or more of the other pairs of wheels are pivotable about an axis parallel to the Z axis 20.
  • the wheels 26 are pivotable about an axis Z 'parallel to the axis 20 Z 20 defined above.
  • a support of the type of support 20d can be used. In this case, the distance 200 between the hinge axes Z '20 and Z 22 is less than the distance d between the front and rear portions of the carriage.
  • a support of the type of the support 20d can be used.
  • the two hinge means of different types are a pivoting wheel support, and a hinge piece forming a connection between two carriage parts.
  • the carriage 1 of this embodiment comprises a first portion 20, said front carriage and a second portion 21 said rear carriage.
  • a connecting piece 22 is used to connect the parts 20 and 21.
  • This connecting piece 22 is identical to that shown in FIG. figure 4 and is in the form of a rigid piece whose first end, which is not visible on the figure 7 but which is identical to that identified by reference 22a to the figure 4 is engaged in a notch 20b of the body 20a of the first portion 20 of the carriage.
  • This partial insertion of the connecting piece 22 in the notch 20b forms a hinge type articulation between the parts 22 and 20a.
  • the piece 22 is provided with two tabs 22b and 22c which can be selectively engaged in two sets of notches in the body 21a of the part 21.
  • a la figure 7 two notches 21b 'and 21c' are visible, in which are engaged the tabs 22b and 22c, while another notch 21b is visible at a distance from the notch 21b '.
  • the pairs of notches 21b and equivalent, 21b 'and 21c' allow to mount the tab 22 in two positions relative to the body 21a, which allows to adjust the distance d between the bodies 20a and 21a parts 20 and 21.
  • Part 21 of this embodiment is identical to that of the first embodiment and corresponds to the representation of the figure 5 .
  • Part 20 differs from the first embodiment in that the carrier wheels 25 and 26 are all mounted with their respective hinge axes Y 20 and Y '20 fixed relative to the carriage front portion 20. Furthermore, carrier wheels 27 are pivotally mounted about a Y axis 21 fixed relative to the rear carriage portion 21.
  • the portions 20 and 21 are rigid, as in the first embodiment.
  • the body 20a carries two sets of two wheels 125 and 126, of which only the wheels 125 and 126 located on one side of the body 20a are visible in their entirety on the figure 7 , being specified here that a similar wheel is mounted on the side of the body 20a which is not visible at the figure 7 .
  • the wheels 125 and 126 are rotatably mounted about axes Y 120 and Y '120, which are parallel to the axes Y 20 and Y' 20 and whose orientation is fixed relative to the body 20a.
  • These wheels 125 and 126 serve to stabilize the carriage in the rail in the case where a heavy curtain is mounted on a bracket extending cantilever relative to the carriage as shown in FIG. figure 6 , with reference 100, for the first embodiment. If the truck tilts due to this overhang, the wheels 125 and 126 can keep the carriage in the axis and prevent fixed elements of the carriage rubbing on a portion of the rail.

Landscapes

  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Credit Cards Or The Like (AREA)

Description

L'invention concerne le domaine des installations de protection solaire ou de fermeture, et en particulier celui des rideaux coulissants. Ces rideaux sont généralement fixés sur un ensemble de plusieurs patins, montés sur une paire de roues porteuses et comprenant un élément d'accrochage du rideau, pouvant se déplacer le long d'un rail. Un chariot est entraîné le long du rail par l'intermédiaire d'une courroie ou d'un cordon sous une action de manoeuvre manuelle ou sous l'action d'un actionneur électromécanique. Le mouvement du chariot entraîne le mouvement des différents patins, soit par l'intermédiaire du rideau lui-même, soit par des cordons reliant le premier patin au chariot et chaque patin au suivant. Dans le cas de rideaux en plusieurs pans se refermant l'un vers l'autre, chaque pan de rideau est entraîné par un chariot. Le chariot permet également de réaliser la liaison entre les deux extrémités de la courroie, celle-ci formant ainsi un élément d'entraînement sans fin entre deux poulies d'entraînement.The invention relates to the field of solar protection or closure systems, and in particular that of sliding curtains. These curtains are generally fixed on a set of several pads, mounted on a pair of carrying wheels and comprising a curtain attachment element, which can move along a rail. A carriage is driven along the rail by means of a belt or cord under a manual actuation action or under the action of an electromechanical actuator. The movement of the carriage causes the movement of the different pads, either by means of the curtain itself, or by cords connecting the first pad to the carriage and each pad to the next. In the case of multiple curtains closing towards one another, each curtain is driven by a carriage. The carriage also allows for the connection between the two ends of the belt, the latter thus forming an endless drive element between two drive pulleys.

Les rideaux motorisés sont couramment utilisés dans les chambres d'hôtels ou les centres de conférences, c'est à dire dans des lieux très souvent conçus par des architectes avec une esthétique recherchée. En particulier, les rideaux sont montés devant des ouvertures non planes et/ou suivent eux même une courbe pour satisfaire à l'esthétique du lieu.Motorized curtains are commonly used in hotel rooms or conference centers, ie in places often designed by architects with a sought-after aesthetic. In particular, the curtains are mounted in front of non-planar openings and / or themselves follow a curve to satisfy the aesthetics of the place.

La problématique liée à des chariots pour rideaux devant suivre des rails courbes est connue depuis longtemps. En particulier, le document GB-A-735305 décrit un chariot articulé adapté à passer des courbes du rail, ledit chariot comportant toutes les caractéristiques du préambule de la revendication 1. Le chariot est réalisé à partir d'une bande flexible sur laquelle sont montées des plaques équipées de roues verticales et horizontales. Le chariot est ainsi capable de rouler le long d'un rail en V sur une pluralité de roues, tout en acceptant des distorsions dans un plan perpendiculaire à son axe longitudinal, pour le passage des courbes du rail. Le rideau est par ailleurs monté sur des patins simples avec une seule paire de roues sur un même axe perpendiculaire au rail.The problem associated with curtain carriages having to follow curved rails has been known for a long time. In particular, the document GB-A-735 305 discloses an articulated carriage adapted to pass curves of the rail, said carriage having all the features of the preamble of claim 1. The carriage is made from a flexible strip on which are mounted plates equipped with vertical and horizontal wheels. The carriage is thus able to roll along a V-rail on a plurality of wheels, while accepting distortions in a plane perpendicular to its longitudinal axis, for the passage of the curves of the rail. The curtain is also mounted on single pads with a single pair of wheels on the same axis perpendicular to the rail.

Alternativement au montage sur une bande flexible, les différents sous-ensembles du chariot peuvent être articulés par le biais de charnières. Le document GB-A-735305 ne donne pas de détails supplémentaires sur cette construction.Alternatively to the mounting on a flexible strip, the different subassemblies of the carriage can be articulated by means of hinges. The document GB-A-735 305 does not give additional details on this construction.

Le document JP-A-04 079916 décrit un système de motorisation de type linéaire dans lequel un chariot d'entraînement de rideau est également composé de plusieurs sous-ensembles articulés par le biais de charnières.The document JP-A-04 079916 discloses a linear type motorization system in which a curtain drive carriage is also composed of several subassemblies articulated through hinges.

Ces chariots articulés sont particulièrement intéressants pour l'utilisation sur des rails courbes. Cependant ils peuvent manquer de rigidité pour le passage de portions rectilignes du rail, ce qui risque de provoquer des frottements importants si le chariot se plie ou se tord lorsque cela n'est pas nécessaire. Par ailleurs, l'état de la technique ne prévoit pas d'adapter le chariot en fonction de la configuration du rail ou de la longueur et de la tension de sa courroie d'entraînement.These articulated carriages are particularly interesting for use on curved rails. However they may lack rigidity for the passage of rectilinear portions of the rail, which may cause significant friction if the carriage bends or twists when it is not necessary. Furthermore, the state of the art does not provide for adapting the carriage according to the configuration of the rail or the length and tension of its drive belt.

L'invention se propose donc de remédier aux problèmes précédemment évoqués et de fournir une structure de chariot répondant aux besoins techniques et de modularité recherchés dans le domaine de l'entraînement de rideaux coulissants.The invention therefore proposes to remedy the aforementioned problems and to provide a trolley structure meeting the technical and modularity requirements sought in the field of sliding curtain driving.

Le chariot selon l'invention comprend une partie de chariot dite chariot avant, et une deuxième partie de chariot, dite chariot arrière, les deux parties de chariot pouvant se déplacer le long d'un rail grâce à des roues porteuses et qui sont reliées par une pièce d'articulation. Ce chariot comprend également des moyens de montages de la pièce d'articulation dans au moins deux positions par rapport à l'une des première et deuxième parties du chariot. Ce chariot est caractérisé en ce qu'il comprend des moyens d'ajustement du montage de la pièce d'articulation pour les différentes positions de montage.The carriage according to the invention comprises a trolley part called said front trolley, and a second trolley part, called a rear trolley, the two trolley parts being able to move along a rail thanks to carrying wheels and which are connected by a piece of articulation. This carriage also comprises means for mounting the articulation piece in at least two positions with respect to one of the first and second parts of the carriage. This carriage is characterized in that it comprises means for adjusting the mounting of the articulation piece for the different mounting positions.

Grâce à l'invention, la distance entre les parties du chariot peut être ajustée, notamment en fonction de la longueur de la courroie d'entraînement du chariot, ce qui permet notamment d'ajuster la tension de cette courroie. Ainsi, la longueur totale du chariot est variable en fonction de son environnement de montage et les différentes parties constitutives du chariot peuvent être montées à des distances variables les unes des autres.Thanks to the invention, the distance between the parts of the carriage can be adjusted, in particular as a function of the length of the drive belt of the carriage, which allows in particular to adjust the tension of this belt. Thus, the total length of the carriage is variable depending on its mounting environment and the various constituent parts of the carriage can be mounted at varying distances from each other.

Par ailleurs, un corps rigide de la première partie du chariot assure la transmission des efforts d'entraînement sans créer de désalignement par rapport au rail et le montage articulé des composants du chariot permet le passage de courbures du rail.Furthermore, a rigid body of the first part of the carriage ensures the transmission of drive forces without creating misalignment with respect to the rail and the articulated mounting of the components of the carriage allows the passage of curvatures of the rail.

Avantageusement, un premier moyen d'articulation du chariot comprend un support d'au moins une des roues porteuses du chariot avant, monté pivotant par rapport au chariot, autour d'un axe perpendiculaire à l'axe de rotation de la roue.Advantageously, a first means of articulation of the carriage comprises a support of at least one of the carrying wheels of the front carriage, pivotally mounted relative to the carriage, about an axis perpendicular to the axis of rotation of the wheel.

Préférentiellement, au moins une partie de chariot comprend au moins une deuxième roue qui tourne autour d'un axe fixe par rapport au corps rigide, et assurant la stabilité du chariot vis-à-vis du rail. Cette stabilité est d'autant plus importante que, sur la partie de chariot, peuvent être fixées une ou des pattes d'accroche du rideau, dont le déport crée un porte-à-faux par rapport au chariot avant. Cette patte ou ces pattes d'accroche servent à fixer un bord du rideau en avant du chariot, de sorte à recouvrir l'autre bord de rideau sans clair de jour dans le cas de deux pans de rideaux se refermant l'un vers l'autre.Preferably, at least one trolley portion comprises at least one second wheel which rotates about a fixed axis relative to the rigid body, and ensuring the stability of the carriage vis-à-vis the rail. This stability is all the more important that, on the trolley part, can be fixed one or more tabs of the curtain, whose offset creates a cantilever compared to the front carriage. This tab or these brackets are used to fix an edge of the curtain in front of the carriage, so as to cover the other curtain edge without daylight in the case of two curtain panels closing one towards the other.

Avantageusement, le chariot est réalisé à partir de deux parties mobiles l'une par rapport à l'autre dans un sens perpendiculaire au sens de mouvement du chariot, de manière à accepter la courbure du rail de guidage.Advantageously, the carriage is made from two moving parts relative to each other in a direction perpendicular to the direction of movement of the carriage, so as to accept the curvature of the guide rail.

La combinaison du premier pivot de montage de la roue et de la liaison articulée entre les deux parties mobiles permet le passage de portions de rails courbes, y compris lorsque le rayon de courbure est petit.The combination of the first mounting pivot of the wheel and the articulated connection between the two moving parts allows the passage of curved rail portions, including when the radius of curvature is small.

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

  • La pièce d'articulation est rigide et montée avec au moins un degré de liberté sur au moins une des parties de chariot.
  • La pièce d'articulation est montée sans degré de liberté sur une ou chacune des parties de chariot.
  • La pièce d'articulation comprend une première extrémité repliée formant charnière avec la première partie de chariot.
  • La pièce d'articulation comprend au moins une deuxième extrémité repliée permettant son montage sur la deuxième partie de chariot.
  • La deuxième partie de chariot comprend une pluralité de logements de réception de la deuxième extrémité repliée de la pièce.
  • La pièce d'articulation est montée sans degré de liberté sur une ou chacune des première et deuxième parties du chariot.
  • Le chariot comprend deux moyens d'articulation distincts, de deux types différents, de composants du chariot par rapport à un corps rigide de la première partie du chariot. Dans ce cas, on peut prévoir qu'un premier moyen d'articulation du chariot comprend un support d'au moins une des roues porteuses de la première partie de chariot, monté pivotant, par rapport au chariot, autour d'un axe perpendiculaire à l'axe de rotation de cette roue.
  • La première partie de chariot porte deux paires de roues porteuses ainsi que deux paires de roues de stabilisation.
  • Le chariot comprend des moyens de fixation des extrémités d'un lien flexible d'entraînement du chariot respectivement sur les première et deuxième parties du chariot. La courroie d'entraînement, montée par chacune de ses extrémités à différentes pièces du chariot, peut ainsi être tendue ou détendue en fonction de sa longueur et de la tension requise par l'installation. De ce fait, le chariot répond à une double problématique : celle du passage de courbures dans le rail de guidage et celle de la tension de l'élément d'entraînement tel qu'une courroie, à partir d'une seule réalisation.
  • Les axes d'articulation des moyens d'articulation sont parallèles et séparés d'une distance inférieure à la distance séparant les deux parties de chariot.
According to other advantageous but not obligatory aspects of the invention, a drive carriage may incorporate one or more of the following features taken in any technically permissible combination:
  • The hinge piece is rigid and mounted with at least one degree of freedom on at least one of the carriage portions.
  • The hinge piece is mounted without degree of freedom on one or each of the carriage parts.
  • The hinge piece includes a folded first hinge end with the first carriage portion.
  • The articulation piece comprises at least a second folded end for mounting on the second carriage part.
  • The second carriage portion includes a plurality of receiving housings of the second folded end of the workpiece.
  • The hinge piece is mounted without degree of freedom on one or each of the first and second parts of the carriage.
  • The carriage comprises two distinct hinge means, of two different types, of components of the carriage relative to a rigid body of the first part of the carriage. In this case, it can be provided that a first means of articulation of the carriage comprises a support of at least one of the carrying wheels of the first carriage part, pivotally mounted relative to the carriage, about an axis perpendicular to the axis of rotation of this wheel.
  • The first carriage part carries two pairs of carrying wheels as well as two pairs of stabilizing wheels.
  • The carriage comprises means for fixing the ends of a flexible link for driving the carriage respectively on the first and second parts of the carriage. The drive belt, mounted at each end to different parts of the carriage, can be tensioned or relaxed depending on its length and the voltage required by the installation. As a result, the carriage responds to a dual problem: that of the passage of curvatures in the guide rail and that of the tension of the drive element such as a belt, from a single embodiment.
  • The axes of articulation of the articulation means are parallel and separated by a distance less than the distance separating the two parts of the carriage.

Par ailleurs, le chariot selon l'invention permet de résoudre une double contrainte : une articulation du chariot combinée avec un attachement rigide et solide des deux extrémités de la courroie.In addition, the carriage according to the invention makes it possible to solve a double constraint: an articulation of the carriage combined with a rigid and solid attachment of the two ends of the belt.

Le montage des différentes pièces du chariot est très simple, il ne nécessite pas de pièces fragiles liant des différentes pièces entre elles. L'assemblage des différentes pièces du chariot peut se faire sur site, permettant ainsi de configurer le chariot pour une courbure droite ou gauche du rail. En particulier, l'assemblage de la courroie sur au moins une des pièces du chariot peut se faire sans contrainte en dehors du rail, la tension de la courroie est réalisée simplement lors du montage de la pièce de liaison.The assembly of the various parts of the carriage is very simple, it does not require fragile parts linking different parts together. The assembly of the various parts of the trolley can be done on site, thus making it possible to configure the trolley for a right or left curvature of the rail. In particular, the assembly of the belt on at least one of the parts of the carriage can be done without stress outside the rail, the tension of the belt is achieved simply during assembly of the connecting piece.

Au moins une première partie de chariot est montée sur plusieurs paires de roues, assurant ainsi la stabilité de la partie de chariot, indépendamment des autres pièces formant le chariot, c'est-à-dire la deuxième partie de chariot et le moyen d'articulation. Cette stabilité est assurée dans le sens longitudinal de déplacement du chariot, ainsi que dans le sens perpendiculaire, suivant l'axe des roues, du fait de la présence d'une paire de roues, chaque roue d'une paire étant disposée de part et d'autre de l'axe longitudinal du chariot.At least a first carriage portion is mounted on a plurality of wheel pairs, thereby ensuring the stability of the carriage portion, independently of other parts forming the carriage, that is to say the second carriage part and the hinge means. This stability is ensured in the longitudinal direction of displacement of the carriage, as well as in the perpendicular direction, along the axis of the wheels, due to the presence of a pair of wheels, each wheel of a pair being arranged on the side and on the other side of the longitudinal axis of the trolley.

Avantageusement, une réalisation particulière de la pièce de liaison ou de son montage par rapport aux pièces du chariot permet également de compenser des variations de hauteur le long du rail, c'est-à-dire permet d'assurer des mouvements du chariot dans un plan perpendiculaire à l'articulation.Advantageously, a particular embodiment of the connecting piece or its assembly with respect to the parts of the carriage also makes it possible to compensate for variations in height along the rail, that is to say makes it possible to ensure movements of the carriage in a plane perpendicular to the joint.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui suit de deux modes de réalisation d'un chariot d'entraînement 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 partielle d'une installation d'occultation à rideau coulissant comprenant un chariot d'entraînement conforme à l'invention,
  • la figure 2 est une section partielle selon la ligne II-II à la figure 1,
  • la figure 3 est une vue en perspective du chariot d'entraînement de l'installation de la figure 1,
  • la figure 4 est une vue en perspective, à plus grande échelle et selon un autre angle, d'une pièce de liaison appartenant au chariot de la figure 3,
  • la figure 5 est une vue de côté d'une partie du chariot de la figure 3,
  • la figure 6 est une vue en perspective analogue à la figure 3, lorsque le chariot est dans une deuxième configuration d'utilisation, et
  • la figure 7 est une vue en perspective d'une chariot conforme à un second mode de réalisation de l'invention et d'une partie de sa courroie d'entraînement.
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 drive carriage and an installation in accordance with its principle, given only by way of example and with reference to the appended drawings in which:
  • the figure 1 is a partial schematic representation of a sliding curtain concealment installation comprising a drive carriage according to the invention,
  • the figure 2 is a partial section along the line II-II to the figure 1 ,
  • the figure 3 is a perspective view of the drive cart from the installation of the figure 1 ,
  • the figure 4 is a perspective view, on a larger scale and at another angle, of a connecting piece belonging to the trolley of the figure 3 ,
  • the figure 5 is a side view of a portion of the trolley of the figure 3 ,
  • the figure 6 is a perspective view similar to the figure 3 when the carriage is in a second use configuration, and
  • the figure 7 is a perspective view of a carriage according to a second embodiment of the invention and a portion of its drive belt.

La figure 1 est une vue schématique partielle d'une installation d'occultation d'une baie qui comprend un rideau (non représenté) et entraîné par un chariot d'entraînement 1 solidaire de deux extrémités d'une courroie 12, elle-même entraînée par une poulie non représentée mue par un actionneur, également non représenté, tel qu'un moteur électrique. Un rail 10 guide le chariot 1 lors des mouvements d'ouverture et de fermeture du rideau R. Comme il ressort de la figure 2, le rail 10 a une section sensiblement rectangulaire formant, sur la surface du bas, des guides 14 et 15 pour la courroie 12 repliée sur elle-même et des guides 16 et 17 pour des roues du chariot, ainsi qu'une ouverture longitudinale 18 pour le passage du corps du chariot lui-même.The figure 1 is a partial schematic view of an obscuration installation of a bay which comprises a curtain (not shown) and driven by a drive carriage 1 secured to two ends of a belt 12, itself driven by a pulley not shown moved by an actuator, also not shown, such as an electric motor. A rail 10 guides the trolley 1 during the opening and closing movements of the curtain R. As can be seen from figure 2 , the rail 10 has a substantially rectangular section forming, on the bottom surface, guides 14 and 15 for the belt 12 folded on itself and guides 16 and 17 for wheels of the carriage, and a longitudinal opening 18 for the passage of the body of the trolley itself.

Le chariot comprend deux parties 20 et 21, respectivement avant et arrière, assemblées l'une à l'autre par une pièce de liaison 22. Dans la présente description, les notions « avant » et « arrière » sont des conventions correspondant au déplacement du chariot 1 de la droite vers la gauche à la figure 1, étant rappelé ici que le chariot peut également se déplacer en sens inverse le long du rail 10.The carriage comprises two parts 20 and 21, respectively front and rear, assembled to one another by a connecting piece 22. In the present description, the concepts "before" and "back" are conventions corresponding to the movement of the trolley 1 from right to left at the figure 1 , being recalled here that the carriage can also move in opposite directions along the rail 10.

Une première partie 20 du chariot 1, dite « chariot avant », roule dans le rail à l'aide de deux paires de roues porteuses 25 et 26. La première paire de roues 25 est montée pivotante par rapport au corps 20a du chariot avant 20 autour d'un axe Z20 perpendiculaire à un axe longitudinal X20 du chariot avant 20 pris selon la direction d'avance du chariot avant 20 le long du rail 10. L'axe Z20 est sensiblement vertical lorsque le chariot 1 est supporté par le rail 10 qui est horizontal. Alternativement, c'est la deuxième paire de roues 26 qui est montée pivotante autour d'un axe parallèle à l'axe Z20.A first part 20 of the carriage 1, called the "front carriage", rolls in the rail with two pairs of carrying wheels 25 and 26. The first pair of wheels 25 is pivotally mounted relative to the body 20a of the front carriage 20 around an axis Z 20 perpendicular to a longitudinal axis X 20 of the front carriage 20 taken in the direction of advance of the front carriage 20 along the rail 10. The axis Z 20 is substantially vertical when the carriage 1 is supported by the rail 10 which is horizontal. Alternatively, it is the second pair of wheels 26 which is pivotally mounted about an axis parallel to the axis Z 20 .

La paire de roues pivotante est montée sur un support 20d, avec possibilité de rotation autour d'un axe Y20 perpendiculaire à l'axe Z20. Le support 20d est lui-même monté sur le corps 20a avec possibilité de rotation autour de l'axe Z20. L'axe Y20 a donc une orientation variable par rapport à l'axe X20. La première paire de roues pivotante peut ainsi pivoter autour de l'axe Z20, comme représenté par la double flèche F1 à la figure 3, et permettre la manoeuvre du chariot avant le long de rails courbes. Ceci reste applicable (aux références d'axes près) dans le cas où la deuxième paire de roues est montée pivotante.The pair of pivotable wheels is mounted on a substrate 20d, with possibility of rotation about a Y-axis 20 perpendicular to the Z axis 20. The support 20d is itself mounted on the body 20a with the possibility of rotation about the Z axis 20 . The Y axis 20 therefore has a variable orientation with respect to the X axis 20 . The first pair of swivel wheels can thus pivot about the Z axis 20 , as represented by the double arrow F 1 to the figure 3 , and allow the operation of the trolley before along curved rails. This remains applicable (to the axis references close) in the case where the second pair of wheels is pivotally mounted.

Le corps 20a du chariot avant 20 est rigide.The body 20a of the front carriage 20 is rigid.

La deuxième paire de roues 26 du chariot avant 20 permet, en combinaison avec la première paire de roues 25, d'assurer la stabilité du chariot avant dans le rail 10. En effet, comme représenté à la figure 6, le chariot avant peut être relié à une patte 100 d'accroche du rideau, cette patte s'étendant en porte-à-faux par rapport au corps du chariot avant. A la figure 6, la trace du rideau est visible avec la référence R. Le couple de basculement exercé sur la partie de chariot 20 peut être important, particulièrement lorsque s'ajoute le poids du rideau R fixé à cette patte d'accroche. Les roues de la deuxième paire de roues peuvent alors se retrouver en contact avec le bord supérieur du rail.The second pair of wheels 26 of the front carriage 20 allows, in combination with the first pair of wheels 25, to ensure the stability of the front carriage in the rail 10. Indeed, as shown in FIG. figure 6 , the front carriage can be connected to a lug 100 of the curtain, this tab extending cantilever relative to the body of the front carriage. To the figure 6 , the trace of the curtain is visible with the reference R. The tilting torque exerted on the trolley portion 20 may be important, especially when added to the weight of the curtain R attached to the bracket. The wheels of the second pair of wheels can then be in contact with the upper edge of the rail.

Les roues de la deuxième paire de roues 26 sont tournantes autour d'un axe Y'20 perpendiculaire aux axes X20 et Z20 et fixe par rapport au corps 20a.The wheels of the second pair of wheels 26 are rotating about a Y 'axis 20 perpendicular to the axes X 20 and Z 20 and fixed relative to the body 20a.

Le chariot avant 20 est relié à la deuxième partie de chariot 21, dite « chariot arrière », par la pièce de liaison 22. La pièce de liaison 22 se présente sous la forme d'une pièce rigide montée, d'une part, sur le chariot avant 20, dans une encoche 20b prévue à cet effet, et d'autre part, sur le chariot arrière 21, dans au moins une encoche 21 b.The front carriage 20 is connected to the second carriage part 21, called the "rear carriage", by the connecting piece 22. The connecting piece 22 is in the form of a rigid part mounted, on the one hand, on the front carriage 20, in a notch 20b provided for this purpose, and secondly, on the rear carriage 21, in at least one notch 21 b.

Le corps 21 a du chariot arrière 21 est rigide et ses roues 27 sont tournantes autour d'un axe Y21 fixe par rapport à ce corps.The body 21 of the rear carriage 21 is rigid and its wheels 27 are rotated about a Y axis 21 fixed relative to this body.

Les corps 20a et 21 a des chariots avant et avant peuvent être réalisés en métal ou en matière plastique rigide.The bodies 20a and 21 has front and front carriages can be made of metal or rigid plastic material.

La figure 3 montre en perspective les pièces constitutives du chariot d'entraînement 1 précédemment décrites. Les paires de roues 25, 26 et 27 sont visibles.The figure 3 shows in perspective the constituent parts of the drive carriage 1 previously described. The pairs of wheels 25, 26 and 27 are visible.

La figure 4 montre une vue de côté de la pièce de liaison isolée du reste du chariot 1. Cette pièce de liaison est réalisée en métal ou en matière plastique rigide. Elle comprend un voile principal plan 221, à partir duquel s'étend une première extrémité 22a de la pièce 22 repliée et arrondie. L'insertion de cette extrémité 22a dans l'encoche 20b du chariot avant forme une articulation, de type charnière, entre la pièce de liaison 22 et le chariot avant 20. En d'autres termes, grâce à cette articulation, la pièce 22 peut pivoter par rapport au corps 20a autour d'un axe parallèle Z22 à l'axe Z20.The figure 4 shows a side view of the connecting piece insulated from the rest of the carriage 1. This connecting piece is made of metal or rigid plastic material. It comprises a plane main sail 221, from which extends a first end 22a of the piece 22 folded and rounded. The insertion of this end 22a into the notch 20b of the front carriage forms a hinge-type articulation between the connecting piece 22 and the front carriage 20. In other words, thanks to this articulation, the piece 22 can pivoting relative to the body 20a about an axis parallel Z 22 to the axis Z 20 .

Les axes Z20 et Z22 constituent donc deux axes d'articulations parallèles entre eux. Ces axes sont perpendiculaires aux axes de rotation des roues 25 et 26 et à un axe longitudinal du chariot confondu avec l'axe X20 lorsque les parties 20 et 21 sont alignées. Les composants du chariot 1 que sont, d'une part, la paire de roues 25 et, d'autre part, le chariot arrière 21 sont articulés grâce aux moyens 20d et 22 sur le corps 20 du chariot avant.The Z 20 and Z 22 axes thus constitute two axes of joints parallel to each other. These axes are perpendicular to the axes of rotation of the wheels 25 and 26 and to a longitudinal axis of the carriage coincident with the X axis 20 when the parts 20 and 21 are aligned. The components of the carriage 1 that are, on the one hand, the pair of wheels 25 and, on the other hand, the rear carriage 21 are hinged by the means 20d and 22 on the body 20 of the front carriage.

A l'autre extrémité du voile 221 de la pièce de liaison 22 se trouvent deux pattes 22b et 22c repliées à angle droit par rapport au voile 221, de manière à pouvoir pénétrer dans des encoches correspondantes 21 b et 21 c du chariot arrière 21. Une patte intermédiaire centrale et rectiligne 22d s'étend dans le prolongement du voile 221, entre les pattes 22b et 22c. Cette patte comporte un trou 22e. Lors du montage, cette patte intermédiaire s'étend le long du corps 21 a du chariot arrière 21 et peut être fixée, par exemple par une vis passant au travers du trou 22e et engagée dans un taraudage correspondant 21d du chariot arrière 21. Lorsqu'elle relie les chariots avant et arrière 20 et 21, la pièce 22 forme un moyen d'articulation entre ces parties du chariot 1, dans la mesure où l'extrémité 22a est articulée dans l'encoche 20b.At the other end of the web 221 of the connecting piece 22 are two tabs 22b and 22c folded at right angles to the web 221, so as to be able to penetrate into corresponding notches 21b and 21c of the rear carriage 21. A central and straight intermediate tab 22d extends in the extension of the web 221, between the tabs 22b and 22c. This leg has a 22e hole. During assembly, this intermediate lug extends along the body 21a of the rear carriage 21 and can be fixed, for example by a screw passing through the hole 22e and engaged in a corresponding tapping 21d of the rear carriage 21. When it connects the front and rear carriages 20 and 21, the part 22 forms a means of articulation between these parts of the carriage 1, insofar as the end 22a is articulated in the notch 20b.

Dans la configuration représentée à la figure 1, la première partie 20 et la deuxième partie 21 du chariot sont éloignées l'une de l'autre d'une distance d imposée par la pièce de liaison 22. Dans cette configuration, les pattes 22b et 22c sont engagées dans les encoches 21 b et 21 c.In the configuration shown in figure 1 , the first portion 20 and the second portion 21 of the carriage are spaced from each other by a distance d imposed by the connecting piece 22. In this configuration, the tabs 22b and 22c are engaged in the notches 21b and 21 c.

Si les pattes 22b et 22c de la pièce de liaison 22 sont introduites dans des deuxièmes encoches 21 b' et 21 c' prévues sur le corps 21 a, comme représenté à la figure 3, la distance entre les parties de chariot 20 et 21 se réduit d'une distance d', qui correspond à la distance entre les centres des encoches 21 b et 21 b'.If the tabs 22b and 22c of the connecting piece 22 are introduced into second notches 21b 'and 21c' provided on the body 21a, as shown in FIG. figure 3 , the distance between the carriage portions 20 and 21 is reduced by a distance of, which corresponds to the distance between the centers of the notches 21b and 21b '.

Un second taraudage 21 d' est prévu, à la distance d' du taraudage 21 d, pour recevoir une vis passant par le trou 22e lorsque les pattes 22b et 22c sont engagées dans les encoches 21 b' et 21 c'.A second thread 21 d 'is provided, at the distance of the tapping 21 d, to receive a screw passing through the hole 22e when the tabs 22b and 22c are engaged in the notches 21 b' and 21 c '.

Ce système de double position de montage de la pièce de liaison 22 sur le chariot arrière 21 permet de régler la longueur totale L1 du chariot rectiligne parallèlement à la direction du rail 10, et en particulier, de régler la distance entre les points d'accroche des extrémités de la courroie 12 sur chaque partie de chariot 20 ou 21.This system of double mounting position of the connecting piece 22 on the rear carriage 21 makes it possible to adjust the total length L 1 of the rectilinear carriage parallel to the direction of the rail 10, and in particular to adjust the distance between the dots. hooks the ends of the belt 12 on each trolley portion 20 or 21.

Ainsi, il est possible d'ajuster le chariot d'entraînement à la longueur de la courroie 12 ou d'ajuster la tension de cette courroie. D'autres moyens d'ajustement pourraient être prévus afin de permettre d'ajuster les distances d et d' plus finement, par exemple en utilisant des systèmes de dentures sur l'une ou l'autre des pièces en liaison 20, 21 et 22. Alternativement ou de manière complémentaire, le réglage pourrait être fait par l'intermédiaire d'une vis immobilisée dans un trou oblong.Thus, it is possible to adjust the drive carriage to the length of the belt 12 or to adjust the tension of this belt. Other adjustment means could be provided to allow the distances d to be adjusted and more finely, for example by using tooth systems on one or other of the connecting pieces 20, 21 and 22. Alternatively or in a way In addition, the adjustment could be done by means of a screw immobilized in an oblong hole.

Compte tenu de la connexion du chariot arrière 21 au chariot avant 20 par la pièce de liaison 22, le chariot arrière 21 ne nécessite qu'une seule paire de roues 27. Il pourrait cependant être équipé de deux paires de roues, incluant éventuellement une paire de roues pivotante, comme le chariot avant. L'utilisation de deux paires de roues sur au moins une des parties 20 ou 21 du chariot 1 permet d'assurer le maximum de stabilité, quelle que soit la charge entraînée, ainsi que de minimiser les frottements, en particulier lorsque le poids du rideau est important. L'utilisation de roues souples, en matière plastique ou garnies de caoutchouc par exemple, permet de minimiser le bruit du roulement sur le rail 10.Given the connection of the rear carriage 21 to the front carriage 20 by the connecting piece 22, the rear carriage 21 requires only one pair of wheels 27. It could however be equipped with two pairs of wheels, possibly including a pair swivel wheels, like the front cart. The use of two pairs of wheels on at least one of the parts 20 or 21 of the carriage 1 makes it possible to ensure the maximum stability, whatever the load carried, as well as to minimize the friction, in particular when the weight of the curtain is important. The use of flexible wheels, made of plastic or rubber-lined, for example, makes it possible to minimize the noise of the rolling on the rail 10.

Le chariot arrière 21 porte un oeillet 30 de support du rideau. Cet oeillet 30 permet d'accrocher une partie du rideau au chariot 1 pour en assurer l'entraînement le long du rail 10. L'oeillet peut être monté de manière connue de façon amovible sur le chariot arrière 21. Différents autres types de supports pourraient être connectés au chariot 1 à la place de l'oeillet, par exemple un crochet, un anneau ou tout autre moyen d'accrochage adapté à la finition du rideau.The rear carriage 21 carries a ring 30 for supporting the curtain. This eyelet 30 makes it possible to hang a portion of the curtain to the carriage 1 to drive it along the rail 10. The eyelet can be mounted in a manner known removably on the rear carriage 21. Various other types of supports could to be connected to the carriage 1 instead of the eyelet, for example a hook, a ring or any other attachment means suitable for finishing the curtain.

Selon une variante non représentée de l'invention, la pièce de liaison 22 elle-même peut intégrer un autre degré de liberté dans la liaison avec ou entre les parties 20 et 21 du chariot. Ce degré de liberté supplémentaire peut permettre la compensation de variations de hauteur du rail et/ou s'ajouter à la flexibilité du chariot pour s'ajuster aux courbures du rail (par exemple par l'introduction d'une articulation au niveau de la pièce de liaison elle-même) notamment pour les courbures à faible rayon.According to a variant not shown of the invention, the connecting piece 22 itself can incorporate another degree of freedom in the connection with or between the parts 20 and 21 of the carriage. This additional degree of freedom may allow the compensation of variations in the height of the rail and / or add to the flexibility of the carriage to adjust to the curvatures of the rail (for example by the introduction of a hinge at the part level linkage itself) especially for small radius bends.

Ce degré de liberté supplémentaire peut être présent uniquement au niveau d'une des zones de fixation de la pièce de liaison 22 sur une des parties 20 et 21 du chariot. Par exemple, l'encoche 20b peut être prévue plus étendue, par exemple en hauteur c'est-à-dire parallèlement à l'axe Z20, qu'il n'est nécessaire pour recevoir l'extrémité repliée 22a de la pièce de liaison 22. Ainsi, la pièce de liaison 22 peut se déplacer en coulissant légèrement en hauteur par rapport au chariot avant 20 ou réciproquement.This additional degree of freedom may be present only at one of the fixing areas of the connecting piece 22 on one of the parts 20 and 21 of the carriage. For example, the notch 20b may be provided more extensive, for example in height, that is to say parallel to the Z axis 20 , than it is necessary to receive the folded end 22a of the piece of link 22. Thus, the connecting piece 22 can move slightly sloping in height relative to the front carriage 20 or vice versa.

Selon une autre variante non représentée de l'invention, la pièce 22 peut être montée avec un degré de liberté par rapport à chacune des parties 20 et 21 du chariot 1.According to another variant not shown of the invention, the part 22 can be mounted with a degree of freedom with respect to each of the parts 20 and 21 of the carriage 1.

La figure 5 représente le chariot arrière seul. On retrouve sur cette figure les éléments suivants: la première paire d'encoches 21 b, 21 c, destinées à accueillir les pattes 22b et 22c repliées de la pièce de liaison 22 dans la première position de montage représentée à la figure 1 et la deuxième paire d'encoches 21 b' et 21 c' utilisées pour accueillir les pattes 22b et 22c dans la deuxième position représentée à la figure 3, ce qui permet d'ajuster la distance entre le chariot avant 20 et le chariot arrière 21.The figure 5 represents the rear carriage alone. This figure shows the following elements: the first pair of notches 21b, 21c intended to receive the folded tabs 22b and 22c of the connecting piece 22 in the first mounting position shown in FIG. figure 1 and the second pair of notches 21b 'and 21c' used to receive the tabs 22b and 22c in the second position shown in FIG. figure 3 , which makes it possible to adjust the distance between the front carriage 20 and the rear carriage 21.

Selon une autre variante non représentée de l'invention, plus de deux jeux d'encoches peuvent être prévues, ce qui permet d'utiliser trois ou plus de trois positions de montage de la pièce 22 sur le chariot avant 21.According to another variant not shown of the invention, more than two sets of notches can be provided, which makes it possible to use three or more mounting positions of the part 22 on the front carriage 21.

Au lieu de chaque paire d'encoches, une seule encoche pourrait être prévue si, de manière correspondante, la pièce de liaison 22 ne comporte qu'une seule patte repliée, par exemple une patte repliée centrale. Les deux taraudages 21d et 21d' servent à la fixation de la pièce de liaison 22 sur le chariot arrière 21 au moyen d'une vis, dans les deux configurations prévues par les paires d'encoches. En variante, ces taraudages sont remplacés par des trous lisses et la vis traverse le corps 21 a du chariot 21 de part en part pour coopérer avec un écrou rapporté contre la face du corps 21 a opposée à celle visible à la figure 5.Instead of each pair of notches, a single notch could be provided if, correspondingly, the connecting piece 22 has only one folded tab, for example a central folded tab. The two threads 21d and 21d 'are used for fixing the connecting piece 22 on the rear carriage 21 by means of a screw, in the two configurations provided by the pairs of notches. Alternatively, these threads are replaced by smooth holes and the screw passes through the body 21a of the carriage 21 from one side to cooperate with a nut reported against the face of the body 21 opposite to that visible to the figure 5 .

Les paires d'encoches 21 b et 21 c ou 21 b' et 21 c' peuvent également être prévues plus larges, parallèlement à la longueur du chariot 1, que nécessaire pour accueillir les pattes 22b et 22c, et le trou 22e de la patte centrale peut être amené en regard d'un trou oblong sur le chariot arrière21. Ainsi, un réglage fin de la position est possible pour chaque position de montage.The pairs of notches 21b and 21c or 21b 'and 21c' may also be provided wider, parallel to the length of the carriage 1, necessary to accommodate the legs 22b and 22c, and the hole 22e of the leg central can be brought opposite an oblong hole on the rear carriage21. Thus, a fine adjustment of the position is possible for each mounting position.

La figure 5 montre également un moyen de fixation 21f d'une extrémité de la courroie 12. Ce moyen de fixation 21f n'est pas détaillé mais peut coopérer avec une pièce intermédiaire maintenant une extrémité de la courroie 12 au niveau du chariot arrière, de façon connue en soi. Un moyen de fixation correspondant 20f est également prévu sur le chariot avant 20 pour y fixer l'autre extrémité de la courroie 12.The figure 5 also shows a fastening means 21f of one end of the belt 12. This fixing means 21f is not detailed but can cooperate with an intermediate piece holding one end of the belt 12 at the rear carriage, in a manner known in itself. A corresponding fixing means 20f is also provided on the front carriage 20 to fix the other end of the belt 12.

L'invention a été représentée avec une seule paire de roues pivotantes 25. En variante, une ou plusieurs des autres paires de roues peuvent pivoter autour d'un axe parallèle à l'axe Z20.The invention has been shown with a single pair of castor wheels 25. Alternatively, one or more of the other pairs of wheels are pivotable about an axis parallel to the Z axis 20.

Selon une variante non représentée de l'invention, les roues 26 sont pivotantes autour d'un axe Z'20 parallèle à l'axe Z20 défini ci-dessus. Un support du type du support 20d peut être utilisé. Dans ce cas, la distance d200 entre les axes d'articulation Z'20 et Z22 est inférieure à la distance d séparant les parties avant et arrière du chariot. Un support du type du support 20d peut être utilisé.According to a not represented variant of the invention, the wheels 26 are pivotable about an axis Z 'parallel to the axis 20 Z 20 defined above. A support of the type of support 20d can be used. In this case, the distance 200 between the hinge axes Z '20 and Z 22 is less than the distance d between the front and rear portions of the carriage. A support of the type of the support 20d can be used.

Comme cela ressort de ce qui précède, les deux moyens d'articulation de types différents sont un support de roues pivotant, et une pièce d'articulation formant liaison entre deux parties de chariot.As is apparent from the foregoing, the two hinge means of different types are a pivoting wheel support, and a hinge piece forming a connection between two carriage parts.

Dans le deuxième mode de réalisation de l'invention représenté à la figure 7, les éléments analogues à ceux du premier mode de réalisation portent les mêmes références.In the second embodiment of the invention shown in figure 7 elements similar to those of the first embodiment bear the same references.

Le chariot 1 de ce mode de réalisation comprend une première partie 20, dite chariot avant et une deuxième partie 21 dite chariot arrière. Une pièce de liaison 22 est utilisée pour relier les parties 20 et 21. Cette pièce de liaison 22 est identique à celle représentée à la figure 4 et se présente sous la forme d'une pièce rigide dont une première extrémité, qui n'est pas visible sur la figure 7 mais qui est identique à celle repérée par la référence 22a à la figure 4, est engagée dans une encoche 20b du corps 20a de la première partie 20 du chariot. Cette insertion partielle de la pièce de liaison 22 dans l'encoche 20b forme une articulation de type charnière entre les pièces 22 et 20a. Par ailleurs, la pièce 22 est pourvue de deux pattes 22b et 22c qui peuvent être sélectivement engagées dans deux séries d'encoches ménagées dans le corps 21 a de la partie 21. A la figure 7, deux encoches 21 b' et 21 c' sont visibles, dans lesquelles sont engagées les pattes 22b et 22c, alors qu'une autre encoche 21 b est visible, à une distance d' de l'encoche 21 b'.The carriage 1 of this embodiment comprises a first portion 20, said front carriage and a second portion 21 said rear carriage. A connecting piece 22 is used to connect the parts 20 and 21. This connecting piece 22 is identical to that shown in FIG. figure 4 and is in the form of a rigid piece whose first end, which is not visible on the figure 7 but which is identical to that identified by reference 22a to the figure 4 is engaged in a notch 20b of the body 20a of the first portion 20 of the carriage. This partial insertion of the connecting piece 22 in the notch 20b forms a hinge type articulation between the parts 22 and 20a. Furthermore, the piece 22 is provided with two tabs 22b and 22c which can be selectively engaged in two sets of notches in the body 21a of the part 21. A la figure 7 two notches 21b 'and 21c' are visible, in which are engaged the tabs 22b and 22c, while another notch 21b is visible at a distance from the notch 21b '.

Les paires d'encoches 21 b et équivalente, 21 b' et 21c' permettent de monter la patte 22 dans deux positions par rapport au corps 21 a, ce qui permet d'ajuster la distance d entre les corps 20a et 21 a des parties 20 et 21.The pairs of notches 21b and equivalent, 21b 'and 21c' allow to mount the tab 22 in two positions relative to the body 21a, which allows to adjust the distance d between the bodies 20a and 21a parts 20 and 21.

La partie 21 de ce mode de réalisation est identique à celle du premier mode de réalisation et correspond à la représentation de la figure 5.Part 21 of this embodiment is identical to that of the first embodiment and corresponds to the representation of the figure 5 .

La partie 20 diffère de celle du premier mode de réalisation en ce que les roues porteuses 25 et 26 sont toutes montées avec leurs axes d'articulation respectifs Y20 et Y'20 fixes par rapport à la partie de chariot avant 20. Par ailleurs, des roues porteuses 27 sont montées pivotantes autour d'un axe Y21 fixe par rapport à la partie du chariot arrière 21. Les parties 20 et 21 sont rigides, comme dans le premier mode de réalisation.Part 20 differs from the first embodiment in that the carrier wheels 25 and 26 are all mounted with their respective hinge axes Y 20 and Y '20 fixed relative to the carriage front portion 20. Furthermore, carrier wheels 27 are pivotally mounted about a Y axis 21 fixed relative to the rear carriage portion 21. The portions 20 and 21 are rigid, as in the first embodiment.

Par ailleurs, le corps 20a porte deux séries de deux roues 125 et 126 dont seules les roues 125 et 126 situées sur un côté du corps 20a sont visibles en entier à la figure 7, étant précisé ici qu'une roue analogue est montée sur le côté du corps 20a qui n'est pas visible à la figure 7. Les roues 125 et 126 sont montées tournantes autour d'axes Y120 et Y'120 qui sont parallèles aux axes Y20 et Y'20 et dont l'orientation est fixe par rapport au corps 20a. Ces roues 125 et 126 servent à la stabilisation du chariot dans le rail dans le cas où un rideau lourd est monté sur une patte d'accroche s'étendant en porte-à-faux par rapport au chariot comme celle représentée à la figure 6, avec la référence 100, pour le premier mode de réalisation. Si le chariot bascule du fait de ce porte-à-faux, les roues 125 et 126 permettent de conserver le chariot dans l'axe et d'éviter que des éléments fixes du chariot ne viennent frotter sur une partie du rail.Furthermore, the body 20a carries two sets of two wheels 125 and 126, of which only the wheels 125 and 126 located on one side of the body 20a are visible in their entirety on the figure 7 , being specified here that a similar wheel is mounted on the side of the body 20a which is not visible at the figure 7 . The wheels 125 and 126 are rotatably mounted about axes Y 120 and Y '120, which are parallel to the axes Y 20 and Y' 20 and whose orientation is fixed relative to the body 20a. These wheels 125 and 126 serve to stabilize the carriage in the rail in the case where a heavy curtain is mounted on a bracket extending cantilever relative to the carriage as shown in FIG. figure 6 , with reference 100, for the first embodiment. If the truck tilts due to this overhang, the wheels 125 and 126 can keep the carriage in the axis and prevent fixed elements of the carriage rubbing on a portion of the rail.

Les caractéristiques des différents modes de réalisation et variantes envisagés ci-dessus peuvent être combinées dans le cadre de la présente invention.The characteristics of the various embodiments and variants envisaged above can be combined in the context of the present invention.

Claims (11)

  1. A drive carriage (1) for driving a slidably mounted curtain (R), which carriage comprises:
    - a first carriage portion or "front carriage" (20), and a second carriage portion or "back carriage" (21), the carriage portions being coupled together by a hinge piece (22) and being mounted to move along a rail (10) by means of carrier wheels (25, 26, 27), and
    - means (21b, 21c, 21d, 21b', 21c', 21d', 22b, 22c, 22d, 22e) for mounting the hinge piece (22) in at least two positions relative to one (21) of the first and second portions (20, 21) of the carriage (1),
    characterized in that the carriage further comprises adjustment means for adjusting the mounting of the hinge piece (22) for the various mounting positions.
  2. A carriage according to claim 1, characterized in that the hinge piece (22) is rigid and mounted with at least one degree of freedom on at least one of the portions (20, 21) of the carriage (1).
  3. A carriage according to the preceding claim, characterized in that the hinge piece (22) has a first folded-over end (22a) forming a hinge (20b/22a) with the first carriage portion (20).
  4. A carriage according to the preceding claim, characterized in that the hinge piece (22) has at least a second folded-over end (22b, 22c) enabling it to be mounted on the second carriage portion (21).
  5. A carriage according to the preceding claim, characterized in that the second carriage portion (21) is provided with a plurality of recesses (21b, 21c, 21b', 21c') for receiving the second folded-over end (22b, 22c) of the hinge piece (22).
  6. A carriage according to any one of claims 1 or 2, characterized in that the hinge piece is mounted without any degree of freedom on one of or on both of the first and second portions (20, 21) of the carriage (1).
  7. A carriage according to any preceding claim, characterized in that it further comprises at least two distinct hinge means (20d, 22) of different types, for hinging components (21, 25) of the carriage relative to a rigid body (20a) of the first portion of the carriage (20).
  8. A carriage according to claim 7, characterized in that first hinge means for hinging the carriage comprise a support (20d) for supporting at least one of the carrier wheels (25, 26) of the first carriage portion (20), which support is mounted to pivot (F1), relative to the carriage (1), about an axis (Z20) perpendicular to the axis of rotation of the wheel (Y20).
  9. A carriage according to any one of claims 1 to 6, characterized in that the first carriage portion (20) carries two pairs of carrier wheels (25, 26) and two pairs of stabilizer wheels (125, 126).
  10. A carriage according to any preceding claim, characterized in that it further comprises means (20f, 21f) for fastening the ends of a flexible drive link (12) for driving the carriage respectively to the first and second portions (20, 21) of the carriage (1).
  11. A carriage according to any preceding claim, characterized in that the hinge axes (Z'20, Z22) of the two hinge means (20d, 22) are parallel and are separated by a distance (d200) less than the distance (d) between the two carriage portions.
EP10708297A 2009-02-09 2010-02-08 Drive carriage for a sliding curtain Not-in-force EP2393402B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0950794A FR2941857B1 (en) 2009-02-09 2009-02-09 TRAINING TROLLEY FOR SLIDING CURTAIN
PCT/FR2010/050197 WO2010089517A1 (en) 2009-02-09 2010-02-08 Drive carriage for a sliding curtain

Publications (2)

Publication Number Publication Date
EP2393402A1 EP2393402A1 (en) 2011-12-14
EP2393402B1 true EP2393402B1 (en) 2012-12-05

Family

ID=41017181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10708297A Not-in-force EP2393402B1 (en) 2009-02-09 2010-02-08 Drive carriage for a sliding curtain

Country Status (6)

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US (1) US8418318B2 (en)
EP (1) EP2393402B1 (en)
KR (1) KR20110113742A (en)
CN (1) CN102307499B (en)
FR (1) FR2941857B1 (en)
WO (1) WO2010089517A1 (en)

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Also Published As

Publication number Publication date
US20120011681A1 (en) 2012-01-19
CN102307499B (en) 2014-02-26
US8418318B2 (en) 2013-04-16
KR20110113742A (en) 2011-10-18
FR2941857B1 (en) 2013-12-20
FR2941857A1 (en) 2010-08-13
WO2010089517A1 (en) 2010-08-12
EP2393402A1 (en) 2011-12-14
CN102307499A (en) 2012-01-04

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