• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    This drive system (1) in rotation of a winding member (11) of a closing screen apron wound around a central axis (X), comprises an actuator (3) driving a shaft of output (5), a main shaft (7) driven by the output shaft (5), a rotatable member (9) movable in rotation and fixed in translation relative to the main shaft (7), and rotatably secured of the winding member (11), this element being equipped with first rotational coupling means (92), a member (13) movable in translation along the central axis (X) with respect to the rotary member (9), integral in rotation with the main shaft (7) and having second rotational coupling means (132), first resilient means (19) which push back by default the movable member (13) in a configuration engaged, in which the coupling means (92, 132) in rotation cooperate so as to rotate together the main shaft (7) and the rotary element (9), a control (21) connected to the member (13) movable in translation and adapted to move the member (13) movable in translation to a disengaged configuration, wherein the coupling means (92, 132) are spaced apart from each other so as to disengage in rotation the main shaft (7) and the rotary member (9), and second elastic means (25) adapted to drive the rotary member (9) in rotation about the central axis (X) so that the apron is driven to a wound configuration. The second elastic means (25) are interposed in series between the main shaft (7) and the rotary element (9).
    公开号:FR3078095A1
    申请号:FR1851527
    申请日:2018-02-22
    公开日:2019-08-23
    发明作者:Arnaud Marcassoli；Sebastien Brogly
    申请人:Zurfluh Feller；
    IPC主号:
    专利说明:

    Rotary drive system for a winding member
    The present invention relates to a rotational drive system for a winding member of a closing screen apron that can be rolled up around a central axis.
    Conventionally, a roller shutter or door comprises a winding member, such as a winding tube, on which a flexible apron is fixed, such as an apron formed by blades hinged together. An electric motor drives the drum in rotation to open or close the shutter or the door.
    The standards in force impose the possibility of operating the deck in the event of an electrical failure.
    Most of the current drive systems consist of a torsion spring mounted in parallel with the motor, the spring and the motor acting simultaneously on the winding tube. Such systems are described in particular in FR 3 004 745 and EP 0 751 278. These systems make it possible to disengage the motor, that is to say to break the connection between the motor and the winding tube, which switches over to direct draft operation (the spring acting only on the winding tube).
    The fact of using a spring in parallel with the motor can generate in certain cases a problem of jerks during normal operation: because of the spring which passes from a state of relaxation to a state of compression, the motor must operate in two ways different during the winding and unwinding phase of the bulkhead (braking mode and motor mode). When the engine switches from one operating mode to another, we observe the appearance of jerks / disturbances at the level of the bulkhead; the winding is not fluid, which is not satisfactory from an aesthetic, but also technical point of view, the parts (engine and transmission) being too stressed.
    Other systems offer the possibility of switching from a motorized drive system (with a tubular motor) to a manual drive system (with a winch).
    There are also "CSI" motors for Integrated Emergency Control, that is to say incorporating a manual winch which allows the motor rotor to move.
    The handling times of these systems are too long: the winches have large reduction ratios, so it takes too long to raise the deck sufficiently in an emergency. Manual operation makes the task more difficult compared to an automatic system. It is also necessary to find the Oscillating Rod (TO) to activate the winch, and it is rarely correctly stored by the user.
    It is to these drawbacks that the invention intends to remedy by proposing a new drive system in which the winding of the deck is obtained in a faster and more efficient manner compared to known systems.
    To this end, the invention relates to a system for driving in rotation a member for winding a curtain apron which can be wound around a central axis, the drive system comprising:
    - an actuator driving an output shaft,
    - a main shaft driven by the output shaft,
    a rotary element movable in rotation and fixed in translation relative to the main shaft, and integral in rotation with the winding member, this element being equipped with first means of coupling in rotation,
    - a member movable in translation along the central axis relative to the rotary element, integral in rotation with the main shaft and comprising second coupling means in rotation,
    - first elastic means which push the movable member by default into a clutched configuration, in which the coupling means in rotation cooperate so as to make the main shaft and the rotary element integral in rotation,
    - A control connected to the movable member in translation and adapted to move the movable member in translation to a disengaged configuration, in which the rotating coupling means are spaced from each other so as to separate in rotation the main shaft and the rotating element,
    - second elastic means adapted to drive the rotary element in rotation around the central axis so that the deck is driven towards a rolled up configuration.
    This system is characterized in that the second elastic means are interposed in series between the main shaft and the rotary element.
    Thanks to the invention, the raising of the deck is permitted by the simple translation of a cable. The energy of the pre-stressed spring is directly released after the coupling means have been disengaged, which causes the roller shutter to automatically rewind. The system is fast: the time taken to raise the deck is very short compared to other systems, notably the CSI. The system is also autonomous: no additional instrument (TO, crank, etc.) is necessary.
    The jerking problems often encountered do not exist in this system since the spring is mounted in series: the motor rotates the spring which rotates the tube. Since the spring is only requested after activation of the automatic winding process, the invention ensures normal operation of the shutter except in emergency situations. The winding is fluid and regular.
    According to advantageous but not compulsory aspects of the invention, such a training system can incorporate one or more of the following characteristics, taken in any technically admissible combination:
    - In the disengaged configuration of the member movable in translation, the second elastic means are able to be prestressed by a relative rotation between the main shaft and the rotary element.
    - The second elastic means are formed by at least one torsion spring fixed at one of its ends to the main shaft, and at its other end, to the rotary element.
    - The second elastic means are formed by several torsion springs arranged in series or in parallel.
    - The main shaft has a circular section and the rotary element has a central orifice for receiving the main shaft, this orifice having a circular section.
    - The system comprises an intermediate piece mounted integral in translation and rotation of the main shaft, and free in translation relative to the movable member in translation.
    - The main shaft has a non-circular section, the member movable in translation has the same profile as that of the main shaft, and the drive system does not include an intermediate part between the main shaft and the member mobile in translation.
    - The first and second coupling means in rotation are formed by complementary shapes, such as teeth or grooves, provided on the movable member in translation and on the rotary element.
    - The first and second rotational coupling means are formed by a friction clutch system.
    - The rotating element is connected to a winding tube of the deck, forming the winding member.
    - The rotary element is connected to a cord supporting blades forming the deck, this cord forming the winding member.
    The invention will be better understood and other advantages thereof will appear more clearly in the description which follows of a drive system in accordance with its principle, given by way of nonlimiting example with reference to the accompanying drawings in which :
    - Figure 1 shows in schematic view a drive system according to the invention in a clutched configuration;
    - Figure 2 shows in schematic view the drive system of Figure 1 in a disengaged configuration;
    - Figure 3 is an exploded perspective view of the drive system of Figures 1 and 2.
    Figures 1 to 3 show a drive system 1 comprising an actuator 3 having an output shaft 5. The output shaft 5 defines a central axis X of the drive system 1. For example, the actuator 3 can be an electric motor, a winch, etc.
    The output shaft 5 is connected to a main shaft 7 of the drive system 1, so that the main shaft 7 is rotatably integral with the output shaft 5. According to an optional aspect, an intermediate piece 6 can provide the connection between the output shaft 5 and the main shaft 7 so as to facilitate the adaptation of the main shaft 7 to all types of actuators 3.
    The drive system 1 comprises a rotary element 9 in pivot connection with the main shaft 7. The rotary element 9 is axially fixed on the main shaft 7. This fixing in translation is ensured by a part 10 fixed on the main shaft 7 and which prevents axial translation of the rotary element 9 in the direction of the actuator 3.
    In this example, the main shaft 7 has a circular section, and the rotary element 9 has a central orifice 90 for receiving the main shaft 7, this orifice 90 having a circular section corresponding to that of the main shaft 7 .
    In a variant which is not shown, if the main shaft 7 has a profile which does not allow a direct pivot connection (that is to say a mounting of the rotary element 9 directly on the main shaft 7) then a intermediate piece may be provided between the main shaft 7 and the rotary element 9. This may be the case if the main shaft 7 has a non-circular section, with sharp edges or irregularities. The main shaft 7 can be in particular of square, hexagonal profile, etc.
    The rotary element 9 is integral in rotation with a winding member of a windable closing screen apron. In the case of a rolling shutter, the rotary element 9 is connected to a winding tube 11 forming the winding member, around which the blades of the deck are wound. The winding tube 11 is formed by a hollow cylinder centered on the central axis X is in which are mounted the actuator 3, the output shaft 5, the connecting piece 6, the main shaft 7 and the rotary element 9. Generally, the winding tube 11 is mounted to rotate freely on two lateral cheeks 12a and 12b, mounted in a support such as a wall, and which also provide support for the drive system 1.
    In a variant not shown, in the case of "BSO" blinds, the rotary element 9 can be connected to a cord which generates the stack of blades, or else to an axis which winds this cord.
    The drive system 1 comprises a member 13 movable in translation on the main shaft 7 and relative to the rotary element 9. The member 13 is integral in rotation with the main shaft 7. The main shaft 7 having a circular profile making attachment in rotation by direct mounting impossible, the drive system 1 comprises an intermediate part 15 provided between the main shaft 7 and the member 13. The intermediate part 15 transmits the rotational movements of the actuator 3 to the member 13 leaving it the possibility of translation along the axis X. As can be seen in FIG. 3, the intermediate piece 15 has a circular inner section in which the main shaft 7 is received. The intermediate piece 15 is secured in rotation to the main shaft 7 by a bolt 17 (this function can also be performed by a pin, or any other known means). The intermediate piece 15 has an external non-circular profile 150, hexagonal in this example, complementary to a hexagonal profile 130 provided on the inside of the member 13. Thus, the rotation of the intermediate piece 15 is transmitted to the member 13, while allowing the relative translation of these two parts.
    In a variant not shown, if the main shaft 7 has a non-circular section, the drive system may not include an intermediate part 15 and the member 13 may adopt the same profile as that of the main shaft 7.
    The rotary element 9 and the member 13 have disengageable connecting means which allow them to engage or disengage according to the axial position of the member 13. The rotary element 9 is equipped with first coupling means in rotation 92, and the member 13 comprises second coupling means in rotation 132. The coupling means in rotation 92 and 132 are formed by complementary shapes, such as teeth or grooves. In this example, the shapes are circumferentially alternating projecting and recessed reliefs forming, in coupled configuration, rotational stops. Any other form can be considered.
    According to a variant not shown, the first and second coupling means in rotation can be formed by a friction clutch system.
    In a clutched configuration shown in FIG. 1, the coupling means 92 are engaged with the coupling means 132, causing the member 13 to rotate in rotation with the rotary element 9. In a disengaged configuration shown in Figure 2, the coupling means 92 are in a second remote position and are no longer engaged with the coupling means 132, causing a separation in rotation of the member 13 with the rotary element 9. Between the configuration engaged and the configuration disengaged, the member 13 has undergone a translation along the axis X opposite the rotary element 9 between a first close position and a second distant position.
    The drive system 1 comprises elastic means which push the member 13 by default into the engaged configuration. These elastic means are formed by a compression spring 19, interposed between the member 13 and a flange 152 of the intermediate piece 15.
    The drive system 1 also includes a control connected to the member 13, and adapted to move the member 13 to its disengaged configuration, against the force of the spring 19. For example, this control can be provided in the form of a cable 21 actuable by a user, and connected to the member 13 by a connecting piece 23. When the cable 21 is pulled, the member 13 is moved away from the rotary element 9, which l 'leads to its disengaged configuration.
    The drive system 1 also comprises second elastic means which drive the rotary element 9 in rotation about the central axis X so that the deck is driven towards a rolled up configuration. These second elastic means are intended to provide a return torque on the bulkhead to its rolled-up position in an emergency if the actuator 3 is inoperative.
    The second elastic means are interposed between the main shaft 7 and the rotary element 9. In other words, these elastic means are arranged in series between the actuator 3 and the winding tube 11. The actuator 3 drives the main shaft 7, which drives the elastic means, which drives the rotary element 9, which drives the winding tube 11.
    To obtain a raising of the deck, a prestress is applied to the second elastic means, so that these store energy and can deliver sufficient torque to raise the deck when the need arises. In the disengaged configuration of the member 13, the second elastic means are able to be prestressed by a relative rotation between the main shaft 7 and the rotary element 9. In other words, in an unsolicited state, the second means elastic can not generate a relative rotation of the main shaft 7 and the rotary member 9, but when a rotation between the main shaft 7 and the rotary member 9 is applied, the second elastic means are in a stressed state . In this state, they undergo an internal stress which tends to exert a relative rotation between the main shaft 7 and the rotary element 9 relative to each other, so that the deck is raised.
    The second elastic means are formed by a torsion spring 25 comprising a first end 250 fixed to the main shaft 7, and a second other end 252 fixed to the rotary element 9. According to one example, the first end 250 is fixed to the main shaft 7 by a bolt 27. According to an example, the second end 252 is fixed to the rotary element 9 by a screw 29.
    The operation of the drive system 1 is as follows. In the normal operating configuration, the rotary element 9 and the member 13 are in the engaged configuration. The torque generated by the actuator 3 is transmitted to the main shaft 7 which transmits it to the member 13 then finally it passes from the member 13 to the rotary member 9 by means of the disengageable connection means 92 and 132. The torque of the actuator 3 is found at the level of the rotary element 9. The pre-stressed torsion spring 25 keeps the rotary element 9 under tension, which, once released, will be driven in rotation, then will drive the winding tube 11 But as long as the member 13 and the rotary element 9 are engaged, the torsion spring 25 cannot release its energy.
    When the cable 21 forming the control is actuated, according to the arrow F1, in emergency operation, the member 13 moves in translation along the axis X away from the rotary element 9, according to the arrow F2. This requires applying to the cable 21 a force greater than that of the spring 19 which keeps the member 13 in the engaged position. Then the disengageable connecting means are disconnected and the rotary element 9 is found free to rotate around the shaft. main 7 and is driven by the torsion spring 25 which can now release its energy. The disengaged configuration is reached. The winding tube 11 is then rotated in the direction of winding the deck.
    When the cable 21 is no longer actuated, the spring 19 pushes the member 13 against the rotary element 9 so that the disengageable connecting means couple again. The two ends 250 and 252 of the torsion spring 25 are found fixed relative to the main shaft 7, the rotary element 9 can only be set in motion by the actuator 3. We find the engaged configuration.
    The drive system 1 has the advantage of being resettable and therefore reusable. In fact, when the declutching command is triggered, the drive system 1 is in the disengaged configuration and the torsion spring 25 releases its energy. Before releasing the cable 21 and switching back to the engaged configuration to return to normal operation, it is always possible to manually rotate the rotary element 9, for example by manipulating the winding tube 11 or any other axis connected to the 'rotary element 9, or even by actuating the main shaft 7 (by the actuator 3, by a winch, among others) since the bulkhead is then locked in the high position following its emergency winding. Thus, it is possible to re-tension the torsion spring 25, or to restore it to a pre-stressed state, since its first end 250 is fixed to the main shaft 7 which is free to rotate, while the second end 252 is linked to the 'rotary element 9 which is then fixed in rotation. A rotation is applied to the torsion spring 25, for example a predefined number of turns as a function of the torque necessary for lifting the bulkhead, then the cable 21 is released to again find the engaged configuration.
    According to an optional aspect, in the case of a large rolling shutter, the actuator 3 can be a motor of considerable length, and is likely not to be maintained in the central axis X of the winding tube 11 under the effect of its own weight. Fixed only at the cheek 12a and at the rotary element 9, the actuator 3 will flex in the winding tube 11 at the risk of touching it. The drive system 1 can therefore include a support piece 31 mounted in the winding tube 11 and mounted on the main shaft 7 or on the connecting piece 6 closest to the output shaft 5 of the actuator 3. The position of the main shaft 7 relative to the winding tube 11 is therefore maintained. In this way, the actuator 3 is supported by two supports to be kept aligned with the central axis X.
    According to an embodiment not shown, the second elastic means can be formed not by a single spring 25 but by several elastic elements, in particular springs. For example, several coaxial springs arranged in series or in parallel can be used. In the case of a series arrangement, the springs will be arranged coaxially, each spring exerting a torque on the next, the latter being connected to the rotary element 9 to transmit the overall torque of the series of springs. In the case of a parallel arrangement, the springs will be arranged coaxially, each spring exerting its torque on the rotary element.
    The characteristics of the embodiments and variants described above can be combined to form new embodiments of the invention.
    权利要求:
    Claims (11)
    [1" id="c-fr-0001]
    1. Drive system (1) in rotation of a winding member (11) of a closing screen apron that can be wound around a central axis (X), the drive system comprising:
    - an actuator (3) driving an output shaft (5),
    - a main shaft (7) driven by the output shaft (5),
    - A rotary element (9) movable in rotation and fixed in translation relative to the main shaft (7), and integral in rotation with the winding member (11), this element being equipped with first coupling means in rotation (92),
    - a member (13) movable in translation along the central axis (X) relative to the rotary element (9), integral in rotation with the main shaft (7) and comprising second means for coupling in rotation ( 132)
    - First elastic means (19) which push the movable member (13) by default in a clutched configuration, in which the rotating coupling means (92, 132) cooperate so as to make the main shaft integral in rotation (7) and the rotary element (9),
    - A control (21) connected to the member (13) movable in translation and adapted to move the member (13) movable in translation to a disengaged configuration, in which the coupling means (92, 132) in rotation are spaced from each other so as to separate in rotation the main shaft (7) and the rotary element (9),
    - second elastic means (25) adapted to drive the rotary element (9) in rotation about the central axis (X) so that the deck is driven towards a rolled configuration, characterized in that the second elastic means (25) are interposed in series between the main shaft (7) and the rotary element (9).
    [2" id="c-fr-0002]
    2. Drive system according to claim 1, characterized in that in the disengaged configuration of the member movable in translation (13), the second elastic means (25) are able to be prestressed by a relative rotation between the shaft main (7) and the rotary element (9).
    [3" id="c-fr-0003]
    3. Drive system according to one of claims 1 and 2, characterized in that the second elastic means are formed by at least one torsion spring (25) fixed to one (250) of its ends at the main shaft (7), and at its other end (252), to the rotary element (9).
    [4" id="c-fr-0004]
    4. Drive system according to claim 3, characterized in that the second elastic means are formed by several torsion springs arranged in series or in parallel.
    [5" id="c-fr-0005]
    5. Drive system according to one of the preceding claims, characterized in that the main shaft (7) has a circular section and in that the rotary element (9) has a central orifice (90) for receiving the main shaft (7), this orifice (90) having a circular section.
    [6" id="c-fr-0006]
    6. Drive system according to claim 5, characterized in that it comprises an intermediate part (15) mounted integral in translation and rotation of the main shaft (7), and free in translation relative to the member ( 13) movable in translation.
    [7" id="c-fr-0007]
    7. Drive system according to one of claims 1 to 4, characterized in that the main shaft (7) has a non-circular section, in that the member (13) movable in translation has the same profile as that of the main shaft (7), and the drive system (1) does not include an intermediate part between the main shaft (7) and the member (13) movable in translation.
    [8" id="c-fr-0008]
    8. Drive system according to one of the preceding claims, characterized in that the first and second rotational coupling means (92, 132) are formed by complementary shapes, such as teeth or grooves, provided on the member (13) movable in translation and on the rotary element (9).
    [9" id="c-fr-0009]
    9. Drive system according to one of claims 1 to 7, characterized in that the first and second coupling means in rotation are formed by a friction clutch system.
    [10" id="c-fr-0010]
    10. Drive system according to one of the preceding claims, characterized in that the rotary element (9) is connected to a winding tube (11) of the deck, forming the winding member.
    [11" id="c-fr-0011]
    11. Drive system according to one of claims 1 to 9, characterized in that the rotary element (9) is connected to a cord supporting blades forming the deck, this cord forming the winding member.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3755864A1|2020-12-30|System for driving a winding member in rotation
    FR2560922A1|1985-09-13|Device preventing the application of excessive stress to the spring drive motor of a window blind
    EP0751278B1|2000-01-05|Motorized roller shutter
    EP0151143A1|1985-08-14|Tensioning device intended to the rolling and unrolling of a protection element
    FR2570119A1|1986-03-14|Device for unrolling and rolling a flexible surface on a tube
    WO2018087183A1|2018-05-17|Pipe winding/unwinding device
    CH629360A5|1982-04-30|Fishing reel.
    EP1331354A1|2003-07-30|Belt actuated roller shutter with anti-lifting device
    EP1589184B1|2012-08-22|Roller blind comprising a device for axial blocking of an axle sectionencased in a support wing
    EP2034126B1|2014-12-17|Emergency control device and locking, sun protection or projection installation comprising such a device
    EP1093947B1|2006-03-29|Blind with a powered rolling mechanism, with selective coupling of the winding tube with the motor means
    FR2679591A1|1993-01-29|ELECTROMECHANICAL CONTROL DEVICE FOR A TILTING DOOR, IN PARTICULAR A GARAGE TILTING DOOR.
    WO2020136161A1|2020-07-02|Drive system for rotating a winding member of a roll-up closing screen apron
    WO2008041097A2|2008-04-10|Suspension cord winding device for a shutter
    EP3569809A1|2019-11-20|System for actuating a roller blind and a fabric
    EP1637693A1|2006-03-22|Device for driving a roller of a roller shutter
    FR2639080A1|1990-05-18|Long stroke drive member for a rod-type pumping installation for a well, particularly an oil well
    WO2021074520A1|2021-04-22|Winch for handling, in particular for lifting, a load
    FR2877986A1|2006-05-19|TRAINING DEVICE FOR A SHUTTER APRON
    FR3087474A1|2020-04-24|METHOD FOR CONTROLLING AN ACTUATION SYSTEM OF A FIRST AND A SECOND SCREEN AND ACTUATION SYSTEM
    EP1172517A1|2002-01-16|Roller shutter with means for blocking the roller shutter winding tube
    FR2697577A1|1994-05-06|Awning and roller shutter automatic disengaging release - comprises bushing reamed to receive wedge sliding in slots in shaft projecting from winch automatic control when shutter closed.
    FR3088629A1|2020-05-22|Winding-unwinding installation of a towed cable
    BE1014669A3|2004-03-02|Device including a store recovery surfaces non-rectangular.
    EP2446144B1|2017-08-23|Device for storing and restoring mechanical energy
    同族专利:
    公开号 | 公开日
    EP3755864A1|2020-12-30|
    FR3078095B1|2020-10-23|
    WO2019162380A1|2019-08-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1391576A|1964-04-30|1965-03-05|Nihon Bunka Roller Shutter Co|Roll-up sheet closure device|
    JPH11101077A|1997-09-29|1999-04-13|Tostem Corp|Shutter|
    WO2003083245A2|2002-03-28|2003-10-09|Simu|Maneuvering mechanism and closing installation or sun-protection installation incorporating one such device|IT201900017567A1|2019-09-30|2021-03-30|Moveup S R L|INTEGRATED GROUP FOR THE MOTORIZED OPERATION OF A ROLLING SHUTTER.|
    WO2021179020A1|2020-03-06|2021-09-10|Duc Le Manh|A mechanism for automatic opening of rolling doors in case of emergency|FR2736087B1|1995-06-28|1998-01-09|Bubendorff Sa|MOTORIZED SHUTTER|
    FR3004745B3|2013-04-17|2017-01-27|Somfy Sas|ROTATIONAL DRIVE SYSTEM FOR ROLLER DRUM, ROLL-UP CLOSURE SCREEN AND STEERING METHOD|
    法律状态:
    2019-01-25| PLFP| Fee payment|Year of fee payment: 2 |
    2019-08-23| PLSC| Publication of the preliminary search report|Effective date: 20190823 |
    2020-01-13| PLFP| Fee payment|Year of fee payment: 3 |
    2021-01-22| PLFP| Fee payment|Year of fee payment: 4 |
    2022-01-12| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1851527|2018-02-22|
    FR1851527A|FR3078095B1|2018-02-22|2018-02-22|ROTATING DRIVE SYSTEM OF A WINDING UNIT|FR1851527A| FR3078095B1|2018-02-22|2018-02-22|ROTATING DRIVE SYSTEM OF A WINDING UNIT|
    EP19706981.8A| EP3755864A1|2018-02-22|2019-02-21|System for driving a winding member in rotation|
    PCT/EP2019/054319| WO2019162380A1|2018-02-22|2019-02-21|System for driving a winding member in rotation|
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