EP2590538A1 - Chariot de rideau motorisé et installation d'occultation comprenant un tel chariot - Google Patents
Chariot de rideau motorisé et installation d'occultation comprenant un tel chariotInfo
- Publication number
- EP2590538A1 EP2590538A1 EP11743303.7A EP11743303A EP2590538A1 EP 2590538 A1 EP2590538 A1 EP 2590538A1 EP 11743303 A EP11743303 A EP 11743303A EP 2590538 A1 EP2590538 A1 EP 2590538A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carriage
- rail
- friction wheel
- curtain
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003825 pressing Methods 0.000 claims description 29
- 230000033001 locomotion Effects 0.000 claims description 26
- 238000005096 rolling process Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 235000014066 European mistletoe Nutrition 0.000 claims 1
- 235000012300 Rhipsalis cassutha Nutrition 0.000 claims 1
- 241000221012 Viscum Species 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 9
- 102100023170 Nuclear receptor subfamily 1 group D member 1 Human genes 0.000 description 8
- 239000004744 fabric Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
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
-
- 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
Definitions
- the invention relates to a motorized carriage for opening / closing a screen, this carriage being able to move along a rail, and an occultation installation of an opening comprising, among others, such a device. carriage.
- the head carriage comprises guide wheels, generally at least two pairs of wheels, rolling along rolling tracks formed along a rail fixed near the ceiling of a room.
- JP-A-2005-095364 and JP-A-09-327373 disclose a head carriage incorporating a friction wheel rotated by a motor and adapted to be in contact, on a portion of its periphery, with a surface rolling formed along a rail.
- the contact force between the friction wheel and the running surface is statically adjustable by a pressing means.
- DE-A-24 36 753 teaches to take into account the direction of movement of a carriage to adjust the contact force of a friction zone on a rail. Once the direction of movement of the carriage established, the contact force is independent of the weight of the curtain.
- the motor must be dimensioned so as to be able to draw the curtain at the end of the race, that is to say, a significant effort proportional to the total mass of the curtain and can compensate the elastic reaction of the curtain stretched .
- the head carriage At the beginning of a closing maneuver, the head carriage tows a light load, because the mass of the curtain is supported by static support carriages. During this phase, the head carriage moves only a few support carriages and therefore only a few curtain panels, which represents a low weight. Then, the head carriage drives more and more support trolleys. As a result, it tows a mass of curtain larger.
- the carriage needs to provide a significant effort, in particular proportional to the total mass of the curtain.
- the motor is oversized, which results in poor performance of the device and therefore negatively influences the engine consumption. This disadvantage is even more penalizing when the engine is powered by an autonomous power source, in which case the optimization of the consumption is sought.
- the invention provides a motorized curtain carriage to optimize the energy consumption of the engine.
- the invention relates to a motorized carriage for opening / closing a screen, this carriage being able to move along a rail thanks to a friction wheel driven in rotation by a motor and in contact with at least one running surface of the rail, the contact force between the friction wheel and the running surface being adjustable by pressing means, characterized in that the pressing means makes it possible to vary the contact force as a function of a resistant force which depends on the evolution of the load pulled or pushed by the carriage during its displacement.
- the carriage is similar to the carriages of the prior art cited above with the exception of the pressing means which is designed to allow the variation of the contact force as a function of the evolution of the load pulled or pushed by the carriage during its movement, including the weight of the deployed portion of the curtain and associated carriages.
- such a carriage may incorporate one or more of the following features, taken in any technically permissible combination:
- the pressing means allows to change the distance between the axis of rotation of the friction wheel and the running surface of the rail.
- the friction wheel is housed in a casing pivoting about an axis parallel to the axis of rotation of the friction wheel.
- the carriage comprises at least two pairs of guide wheels rolling on tracks of the rail
- the pressing means comprises an arm kinematically connected to a housing of the carriage and movable relative thereto, between a first rest position where it imposes on the housing a first position relative to the rail, such that the contact force has a first value, and at least a second position of movement where it imposes on the housing a second position relative to the rail, such as the force of contact has a second value and that the pressing means modifies the spacing of the axes of rotation of the two pairs of guide wheels by varying the contact force, when the arm passes from its first position to its second position, or reciprocally.
- the pivot axis of the housing coincides with the axis of rotation of the wheels of a pair of guide wheels.
- the housing houses the friction wheel and one of the two pairs of guide wheels is supported by the movable arm.
- the movable arm of the pressing means can pivot relative to the housing about an axis parallel to the axis of the friction wheel, depending on the evolution of the resistant force.
- the movable arm of the pressing means is in contact with a guide cam making it possible to modify the position of the pressing means with respect to the running surface.
- a drive motor of the friction wheel is powered by an autonomous power source.
- the carriage comprises at least two pairs of guide wheels rolling on tracks of the rail.
- the pressing means enables the friction wheel to be brought closer to the rail by modifying the vertical distance between the axis of the friction wheel and a plane passing through the contacts of the guide wheels with the tracks of the rail.
- This rating can be adjusted by simple means. In reality, it is a small variation of this value since, in operation, the friction wheel is continuously in contact with the rail. This variation is in fact directly proportional to the wheel deformation due to the increase of the pressure force.
- one solution consists in that the pressing means modifies the spacing of the two pairs of guide wheels to vary the contact force between the friction wheel and the corresponding running surface of the rail.
- the pressing means comprises a movable element relative to a housing supporting the friction wheel, the movable element, on which is hung the curtain to move, supporting one of the two pairs of guide wheels.
- the pair of guide wheels associated with the movable member is braked proportionally to the curtain mass pulled or pushed, which naturally tends to separate or bring the two pairs of guide wheels.
- the friction wheel can then be plated, more or less strongly, on the running surface depending on the spacing of the guide wheels, which results in a variation of the contact force between the friction wheel and the running surface.
- the device of the invention is particularly suitable for a motorized system powered by an autonomous power source.
- the invention also relates to an occultation installation of an opening comprising a rail, a motorized carriage and a curtain attached to the motorized carriage, characterized in that the carriage is as mentioned above and its friction wheel is in contact with the running surface of the rail and exerts on this surface a variable contact force as a function of the resistant force.
- Figure 1 is a diagram of a curtain incorporating a motorized carriage of the prior art
- Figure 2 is a schematic view, in longitudinal section, of a motorized carriage of the prior art in place in the vicinity of a guide rail shown in an external view;
- Figure 3 is a schematic side view of the carriage and the rail shown in Figure 2;
- Figures 4 to 6 are front views showing the operation of a motorized carriage according to a first embodiment of the invention
- FIG. 7 to 8 are front views showing the operation of a motorized carriage according to a second embodiment of the invention.
- FIG. 1 illustrates a known system for motorizing a curtain 10 in a window concealment installation which is not shown for the sake of clarity of the drawing.
- the curtain which forms an occultation screen, is suspended from trolleys of two types, 20 and 100 by hooks not shown. These carriages comprise guide wheels rolling on rolling tracks arranged along a rail 50 fixed near the ceiling of a room. Thus, the curtain can move freely along the rail. At one of its high ends, the curtain is hooked to a stop 30 fixed to the rail. At its other high end, the curtain is attached to a motorized head carriage 100 whose structure is detailed in Figures 2 and 3.
- the curtain 10 is composed of sections of fabric P1 1, P12, P13, P14, P15, P16 corresponding to the surface of fabric hanging between two support carriages 20.
- the curtain is closed by moving the curtain to the left in Figure 1. Its opening takes place by moving it to the right.
- the towed mass evolves progressively as the head carriage 100 moves the support carriages 20 and the fabric sections P1 1 to P16.
- the support trolleys are driven by the fabric stretched between two support carriages or by a link connecting two consecutive carriages, for example, a chain.
- the head carriage starts by stretching the first pan P1 1, then drives the first support carriage 20, then extends the second pan P12, then drives the second carriage 20 and so on.
- the last panels P12, P13, P14, P15, P16 do not move, they are supported by static support carriages. The mass of these last panels is distributed on these carriages and is not pulled by the head carriage 100.
- the mass towed by the head carriage increases as the curtain 10 is closed.
- the effort required to close the curtain is not regular. It increases significantly towards the end of the race to move the total mass of the curtain but also to compensate for the elastic reaction of the curtain in traction.
- the pushed mass also changes as the head carriage 100 pushes the support carriages, the sections P1 1 to P16 being loose between two support carriages 20.
- the head carriage starts by relaxing the first pan P1 1, then pushes the first support carriage, then relaxes the second pan P12, and so on.
- the last panels P12, P13, P14, P15, P16 do not move, they are supported by static support carriages 20 which support most of the mass of the curtain.
- the mass of curtain pushed by the head carriage increases as the screen is opened.
- the evolution of the effort required to ensure the opening of the curtain is not regular. It increases significantly towards the end of the stroke to move the total mass of the curtain but also to compensate for the elastic reaction of the curtain in compression.
- a first solution is to detect the tension of the curtain.
- the fabric or the link between a cart support 20 and another trolley 20 or 100 adjacent is stretched. Since the last pan P16 of the curtain is connected to the stop 30 fixed on the rail 50, the movement of the motorized head carriage 100 is stopped. This motorized trolley 100 can therefore stop on detecting an increase in torque or a variation in speed.
- one solution is to place a stop 40 on the trajectory of the head carriage. This stops as soon as it meets the stop 40.
- the detection principle may be similar to the previous solution.
- This second solution has the advantage of controlling the stopping position of the head carriage and also it avoids stretching the fabric of the curtain 100, which is less likely to damage it.
- This solution is particularly suitable for a double curtain structure closing at the center of the rail or at desired positions.
- the two curtains can have a different race.
- the first curtain may, for example, have a race corresponding to one third of the length of the rail while the second curtain will have a race corresponding to two thirds.
- the same stop 40 can be used for both curtains, thus ensuring control of the stopping position of the two head carriages.
- This common abutment can also be used to resynchronize the two motorized carriages which is more relevant in the case of a central stop.
- the opening of the curtain stops when the set of support carriages is stacked and abuts against the stop 30.
- the detection of this stop by the motorized carriage 100 is similar to the detection described above.
- FIGs 2 and 3 show a known motorized carriage.
- the motorized trolley 100 comprises a housing 1 10 suspended from the rail 50 of "square" section. It is split longitudinally on its underside, thus forming, on either side of the slot 55, two inner tracks 51 and 52 and two outer race surfaces 53 and 54.
- the inner tracks are intended to receive support and guide the guide wheels of the motorized trolley and support trolleys.
- the housing 1 10 is suspended, at the front, a first pair of guide wheels 151, 152 respectively rolling on the tracks 51, 52 and, at the rear, a second pair of guide wheels rolling respectively on the 51, 52. Only one of these wheels is visible, in Figure 2, with reference 162.
- the other rear wheel 161 is located behind the wheel 151 in the representation of Figure 3 and behind the wheel 162 in the representation of Figure 2.
- the carriage 100 moves along the rail 50 by means of a friction wheel 140, housed in the housing 1 10, rolling on the bearing surfaces 53 and 54.
- the axis Xi 4 i of rotation of the wheel 140 is substantially perpendicular to the direction of travel of the carriage along the rail and substantially parallel to the axes of the guide wheels.
- the motorization of the carriage is performed by an electric motor 130 powered by an autonomous power source 120, such as batteries.
- the motor 130 rotates the friction wheel 140 by a transmission 135 shown schematically in FIG.
- the pressure medium described in this solution is integrated in one of the suspensions of the housing 1 10.
- the first front suspension comprises the front wheels 151 and 152 rotating about an axis X 153 materialized by a front shaft 153.
- a front suspension arm 154 passes through the slot 55 and connects the center of the front shaft 153 to the housing 1 10.
- the second rear suspension is composed of the rear wheels 161 and 162 rotating about an axis Xi 6 3 materialized by a rear shaft 163.
- a rear suspension arm 164 passes through the slot 55 and connects the center of the rear shaft 163 to the housing 1 10, at a longitudinal distance d of the pair of front wheels.
- the second rear arm 164 is not fixed directly to the housing 1 10.
- This rear arm 164 through a wall of the housing. It comprises a thread 164a at one end so as to cooperate with a nut 165.
- a helical spring 166 centered by the rear arm, presses, on one side, against an inner wall of the housing and, on the other side, against the nut 165. Accordingly, the screwing of the nut 165 on the thread 164a of the rear arm 164 compresses the spring 166 which transmits the compressive force on the inner wall of the housing 1 10.
- the housing pivots around the axis X-I53 of the front shaft 153 so as to bring the rear of the housing 10 of the rail 50.
- This movement is limited by the friction wheel 140 housed between the two arms and a part of which protrudes from the high side 1 1 1 of the housing, thanks to a slot 1 12 formed on this face.
- this friction wheel which rotates about the axis X141 materialized by a shaft 141 secured to the housing, abuts against the rolling surfaces 53 and 54 of the rail, thus blocking the pivoting of the housing around the axis Xi 53 .
- the elements 164, 165 and 166 and the internal face of the housing 1 together constitute the pressing means of the wheel 140 against the running surfaces 53 and 54.
- the variation of the compression force of the spring 166 makes it possible to vary the contact force between the friction wheel 1 10 and the rolling surfaces 53 and 54.
- This effort of contact results from a double contact which is exerted, on the one hand, between the guide wheels 151, 152, 161 and 162 and the tracks 51, 52 of the rail 50 and, on the other hand, between a portion of the periphery of the friction wheel 140 and the rolling surfaces 53, 54.
- the intensity of the contact force exerted by the friction wheel 140 depends on its position relative to the rail 50. Its position varies according to the pivoting angle of the housing relative to the axis X-I53.
- the pressing means 1 10-164-165-166 makes it possible to adjust this angle, and thus to directly modify the contact force.
- the pivot angle or the variation of position of the wheel relative to the rail is low. Indeed, in operation, the friction wheel is continuously in contact with the rail. However, it is the crushing of the wheel against the rolling surfaces that generates the increase in the contact force. As a result, the crush height defines the pivot angle and the position variation of the wheel relative to the rail.
- the wheel is preferably relatively flexible material which increases the crush height and increase the contact surface.
- the housing 1 10 comprises a first lug 1 13, in front of the carriage and a second lug 1 14, at the rear of the carriage. These two ears allow the hooking hooks not shown and fixed on the top of the first panel P1 1 of the curtain.
- the contact force must be adjusted to be able to drive the total mass of the curtain 10 equipped with the support carriages 20, that is to say, the load to be towed at the end of a curtain movement. Once set, this effort does not vary during the movement. Thus, at the beginning of a movement of the curtain, the contact force is stronger than necessary. Since the electrical consumption of the motor is directly proportional to this contact force, it is penalized during most of the curtain stroke.
- FIGS 4 to 6 show a first embodiment of the invention.
- the overall structure of the motorized trolley 100b is similar to that of the motorized trolley 100 of the prior art described above, with the exception of the pressing means.
- the elements of the motorized carriage according to this embodiment are referenced by the same numbers as those of the motorized carriage of the prior art to which the index "b" is added.
- the elements identical to those of Figures 1 to 3 are not described in detail.
- the carriage 100b comprises a motor and a transmission not shown and similar to the elements 130 and 135 which rotate a friction wheel 140b.
- the pressing means of the friction wheel 140b on the running surfaces 53 and 54 of the rail 50 is formed by a rear hook device of the motorized trolley 100b.
- the rear suspension arm 164b of the trolley 100b comprises an end similar to that of the rear arm 164 at the rail but differs at its other end.
- the rear arm 164b On the side of the rail 50, the rear arm 164b is connected to a rear shaft 163b supporting two rear guide wheels 161b and 162b.
- the rear arm 164b thus serves to support the carriage 100b under the rail 50, as the rear arm 164 of the carriage 100, in cooperation with a front arm 154b identical to the front arm 154.
- the rear arm 164b is articulated on an ear 1 15b secured to the housing 1 10b of the motorized trolley 100b, about an axis X 167b materialized by a second shaft 167b.
- the rear arm 164b can pivot about the X axis 167b which is parallel to the axes of the guide wheels 151b, 152b, 161b and 162b and perpendicular to the direction of travel of the carriage 100b along the rail 50.
- the rear arm 164b supports an ear 1 14b for hooking a hook, not shown and fixed on the top of the first panel P1 1 of the curtain.
- FIGS. 4 to 6 The principle of variation of the contact force as a function of the evolution of the load pulled or pushed by the carriage during its displacement is illustrated by FIGS. 4 to 6.
- Figure 4 shows the position of the motorized carriage 100b at rest.
- the rear arm 164b is in a vertical position, its longitudinal axis A 164b coinciding with a vertical line D intersecting the axis Xi 67b -
- the axes X 153 and X 163 of the two pairs of guide wheels 151b / 152b and 161b / 162b are spaced a distance E 1b , along the rail 50.
- the friction wheel 140b exerts a contact force F R distributed on the running surfaces 53 and 54.
- Figure 5 illustrates the closing of the curtain.
- the carriage 100b moves in the direction of the arrow F-
- the friction wheel 140b rolls along the running surfaces 53 and 54 by turning about an axis Xi 4 i b , thereby causing the carriage 100b to move, which in turn drives the curtain via the lug 1 14b.
- the rear arm 164b rotates clockwise in Figure 5 about the pivot axis X 67b - This rotation increases the value of an angle a defined between the vertical line D intersecting the X axis 167b and the longitudinal axis A 164 of the rear arm 164b.
- the rear arm 164b is then beyond the line D with respect to the housing 1 10b of the carriage
- This rotation causes, on the one hand, the spacing of the two pairs of wheels 151b / 152b and 161b / 162b relative to each other and, on the other hand, the pivoting of the housing 1 10b around the axis Xi5 3b , in the anti-clockwise direction represented by the arrow F 2 .
- the distance between the axes of rotation X 153 and X 163 of the pairs of guide wheels increases to a value E 2b greater than the value E 1 .
- the carriage 100b thus changes from the configuration represented by the box 1 10b in dotted lines to the configuration in solid lines in FIG.
- FIG. 6 illustrates the opening of the curtain.
- the operating principle is similar to that of closing the curtain.
- the friction wheel 140b rolls along the running surfaces 53 and 54, thus causing the movement in the direction of the arrow F 3 of the carriage 100b which in turn pushes the curtain via the lug 14b.
- the resistive force R P increases and the rear arm 164b rotates counterclockwise about the pivot axis X 16 7b . This rotation increases the absolute value of an angle ⁇ defined between the line D and the axis A 164 .
- the rear arm 164b is then between the line D and the housing 1 10b.
- This rotation causes, on the one hand, the approximation of the two pairs of guide wheels 151b / 152b and 161b / 162b and, on the other hand, the pivoting of the housing 1 10b around the axis Xi 53b, in the counter-clockwise represented by the arrow F 2 .
- the distance between the axes Xi53b and X 163 then decreases to a value E 3 less than the value E 1 .
- the carriage 100b passes from the configuration represented by the box 1 10b in dashed lines to the configuration in solid lines in FIG. 6.
- FIGs 7 and 8 show a second embodiment of the invention.
- the structure of the motorized trolley 100c is similar to that of the motorized trolley 100 of the art prior art described above, with the exception of pressing means.
- the elements of the motorized trolley according to this embodiment are referenced by the same numbers of the motorized trolley of the prior art to which the index "c" is added.
- the elements identical to those of Figures 1 to 3 are not described in detail.
- the carriage 100c comprises a motor and a transmission not shown and similar to the elements 130 and 135 which rotate a friction wheel 140b.
- the pressing means of the friction wheel 140b on the running surfaces 53 and 54 of the rail 50 is also formed by a rear hook device of the motorized trolley 100c.
- the rear suspension arm 164c of the carriage 100c has an end similar to that of the rear arm 164 at the rail but differs at its other end.
- the rear arm 164c On the side of the rail 50, the rear arm 164c is connected to a rear shaft 163c supporting two rear guide wheels 161c and 162c.
- the rear wheels 161c and 162c are also used to suspend the carriage 100c under the rail 50, in conjunction with the front wheels 151c and 152c rotatably mounted at the upper end of a front suspension arm 154c identical to the front arm 154.
- the rear arm 164c carries a pin 168c extending in a direction parallel to the axes X 153c and X 163c of rotation of the guide wheels.
- This pin cooperates with a guide path 1 16c, shaped "V" inverted, formed on an ear 1 15c integral with the housing 1 10c of the motorized carriage 100c.
- the guide path 1 16c is formed by a light cut in the ear 1 15c.
- the arm comprises two pins, arranged on either side of the arm.
- the housing is secured to two lugs 1 15c each incorporating a guide path associated with each peg.
- the rear arm 164c extends, opposite the rear wheels 161c, 162c by an ear 1 14c for hooking a hook not shown attached to the top of the first panel P1 1 of the curtain.
- the adjustment of the contact force between the friction wheel and the running surface is obtained by varying the spacing between the two pairs of wheels 151c / 152c and 161c / 162c .
- Figure 7 shows the position of the motorized carriage 100c at rest.
- the pin 168c is located at the top and in the middle of the guide path 1 16c inverted "V".
- the two pairs of wheels 151c / 152c and 161c / 162c are spaced apart by a distance E 1c .
- the friction wheel 140c exerts a force F R distributed on the running surfaces 53 and 54.
- Figure 8 illustrates the closing of the curtain.
- the friction wheel rolls along the running surfaces by rotating about an axis Xi4i c , thus causing the carriage 100c to move in the direction of the arrow Fi, which causes the curtain via the ear 1 14c.
- the load R T increases and the rear arm 164c moves horizontally in the opposite direction of the carriage movement.
- the displacement of the carriage 100c relative to the ear 1 14c is a translation along one of the rectilinear branches of the guide path 1 16c.
- the path 1 16c is therefore a guide cam of the rear arm 164c, through the pin 168c.
- This movement thus causes the spacing of the two pairs of wheels 151c / 152c and 161 c / 162c that arrive in a position in which their axes of rotation 16 I53c and X 3c are separated by a distance E 2c greater than the distance E 1c .
- this translation causes the casing 1 10c to pivot about the axis ⁇ 53 ⁇ , in the direction of the arrow F 2 .
- the carriage 100c thus passes from the configuration represented by the box 1 10b in dashed lines to the configuration in solid lines in FIG. 8.
- the reasoning is the same except that the two pairs of wheels 151c / 152c and 161c / 162c are getting closer.
- the pin then cooperates with the other branch of the inverted "V", in a manner comparable to that described with reference to FIG. 6 for the first embodiment.
- the contact force F R between the friction wheel 140b or 140c and the running surfaces 53 and 54 in the rest position can be adjustable.
- the solutions described consist in using the reaction force generated following the compression of the friction wheel against the running surfaces.
- return means such as one or more springs, for bringing the movable member of the pressing means to an equilibrium position.
- the pressing means of the carriage makes it possible to take account of the evolution of the weight of the towed or pushed part of the curtain, and therefore of the evolution of the load, by adjusting accordingly the contact force. Indeed, the higher the weight of the curtain, the more the resistant force increases and the movable arm 164b, 164c or equivalent is displaced relative to the housing 1 10b or 1 10c and from its rest position, which induces a corresponding increase in the contact force.
- the drive motor of the friction wheel 140b or 140c is fed from an autonomous power source, similar to the source 120 shown in FIG. 2, for example a set of batteries.
- the front high end of the curtain is hooked to the rear arm of the carriage.
- this high end of the curtain can also be attached to the carriage housing so as to hide it.
- an ear can extend to the front of the carriage analogously to the ear 1 13 in the prior art.
- the invention is described in the case where the friction zone 140b or 140c cooperates with two running surfaces 53 and 54. It also applies in the case where this zone cooperates with a single running surface.
- the invention is not limited to the embodiments described.
- Other solutions may be envisaged to vary the contact force depending on the evolution of the load pulled or pushed by the carriage during its movement. Similarly, the evolution of the contact force can be obtained by simple translation of the housing of the carriage, and more particularly of the friction wheel, to the rail instead of rotating about an axis.
- the invention can also be adapted to carriages moving along other types of rail having a different profile.
- the rail must thus be considered as a support for guiding the carriage, its important shape little.
- the rail may be a circular section rod truncated by a flat portion on its lower part so as to form the raceway for the friction wheel.
- the curtain is attached to rings surrounding the quasi-circular rod.
- the concept of "load” must be understood in the broad sense, including also the effects related to a load variation such as ⁇ "inertia" of the screen during its displacement.
- the invention also covers horizontally sliding panels.
- the operating principle is reversed.
- the effort to be supplied is important since the carriage must set in motion the movable panel.
- the screen is driven, the effort to be supplied decreases thanks to the inertia of the panel.
- a carriage incorporating the principle of the invention therefore makes it possible to adapt its energy requirement as a function of the movement of the panel.
Landscapes
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1055472A FR2962317B1 (fr) | 2010-07-06 | 2010-07-06 | Chariot de rideau motorise et installation d'occultation comprenant un tel chariot |
PCT/FR2011/051606 WO2012004530A1 (fr) | 2010-07-06 | 2011-07-06 | Chariot de rideau motorisé et installation d'occultation comprenant un tel chariot |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2590538A1 true EP2590538A1 (fr) | 2013-05-15 |
EP2590538B1 EP2590538B1 (fr) | 2018-07-04 |
Family
ID=43828293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11743303.7A Active EP2590538B1 (fr) | 2010-07-06 | 2011-07-06 | Chariot de rideau motorisé et installation d'occultation comprenant un tel chariot |
Country Status (8)
Country | Link |
---|---|
US (1) | US9101239B2 (fr) |
EP (1) | EP2590538B1 (fr) |
JP (1) | JP2013530000A (fr) |
CN (1) | CN103068285B (fr) |
AU (1) | AU2011275581B2 (fr) |
BR (1) | BR112013000223A2 (fr) |
FR (1) | FR2962317B1 (fr) |
WO (1) | WO2012004530A1 (fr) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9532675B2 (en) | 2012-02-28 | 2017-01-03 | Somfy Sas | Motorized carriage, screen-moving assembly comprising such a carriage, screening installation and method for operating such an installation |
FR2995339B1 (fr) * | 2012-09-10 | 2014-09-26 | Somfy Sas | Chariot de rideau motorise, installation comprenant un tel chariot et procede de mise en oeuvre d'une telle installation |
FR2987249B1 (fr) * | 2012-02-28 | 2015-05-15 | Somfy Sas | Chariot motorise et installation d'occultation comprenant un tel chariot |
FR2987250B1 (fr) * | 2012-02-28 | 2017-10-20 | Somfy Sas | Chariot motorise, ensemble de deplacement d'un ecran comprenant un tel chariot et installation d'occultation comprenant un tel chariot ou un tel ensemble |
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FR3103693B1 (fr) * | 2019-11-29 | 2024-01-05 | Somfy Activites Sa | Dispositif d’entraînement motorisé d’un dispositif d’occultation ou de protection solaire, dispositif d’occultation ou de protection solaire et installation associés |
CN113616066B (zh) * | 2020-05-06 | 2023-01-17 | 深圳绿米联创科技有限公司 | 窗帘主机及窗帘设备 |
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-
2010
- 2010-07-06 FR FR1055472A patent/FR2962317B1/fr not_active Expired - Fee Related
-
2011
- 2011-07-06 US US13/808,377 patent/US9101239B2/en not_active Expired - Fee Related
- 2011-07-06 JP JP2013517482A patent/JP2013530000A/ja not_active Withdrawn
- 2011-07-06 WO PCT/FR2011/051606 patent/WO2012004530A1/fr active Application Filing
- 2011-07-06 AU AU2011275581A patent/AU2011275581B2/en active Active
- 2011-07-06 EP EP11743303.7A patent/EP2590538B1/fr active Active
- 2011-07-06 CN CN201180041507.6A patent/CN103068285B/zh active Active
- 2011-07-06 BR BR112013000223A patent/BR112013000223A2/pt not_active IP Right Cessation
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AU2011275581A1 (en) | 2013-01-31 |
FR2962317A1 (fr) | 2012-01-13 |
AU2011275581B2 (en) | 2016-08-04 |
US9101239B2 (en) | 2015-08-11 |
CN103068285A (zh) | 2013-04-24 |
BR112013000223A2 (pt) | 2016-05-31 |
CN103068285B (zh) | 2016-06-01 |
JP2013530000A (ja) | 2013-07-25 |
EP2590538B1 (fr) | 2018-07-04 |
WO2012004530A1 (fr) | 2012-01-12 |
US20130160955A1 (en) | 2013-06-27 |
FR2962317B1 (fr) | 2013-04-05 |
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