EP3502395B1 - Motorisierungsanlage für fensterladen, und mechanische schutzsicherung dieser motorisierungsanlage - Google Patents

Motorisierungsanlage für fensterladen, und mechanische schutzsicherung dieser motorisierungsanlage Download PDF

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Publication number
EP3502395B1
EP3502395B1 EP18213392.6A EP18213392A EP3502395B1 EP 3502395 B1 EP3502395 B1 EP 3502395B1 EP 18213392 A EP18213392 A EP 18213392A EP 3502395 B1 EP3502395 B1 EP 3502395B1
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EP
European Patent Office
Prior art keywords
fuse
mechanical
connection
arm
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18213392.6A
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English (en)
French (fr)
Other versions
EP3502395A1 (de
Inventor
Jérôme PAVLOVIC
Florian BODET
Julien MASSON
Sébastien LEMAITRE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Somfy Activites SA
Original Assignee
Somfy Activites SA
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Filing date
Publication date
Priority claimed from FR1771411A external-priority patent/FR3075851B1/fr
Application filed by Somfy Activites SA filed Critical Somfy Activites SA
Publication of EP3502395A1 publication Critical patent/EP3502395A1/de
Application granted granted Critical
Publication of EP3502395B1 publication Critical patent/EP3502395B1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/63—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by swinging arms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/214—Disengaging means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/23—Actuation thereof
    • E05Y2201/232—Actuation thereof by automatically acting means
    • E05Y2201/236—Actuation thereof by automatically acting means using force or torque
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/624—Arms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/706—Shafts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/34—Form stability
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/34—Form stability
    • E05Y2800/342—Deformable
    • E05Y2800/35—Deformable of specific parts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/40—Physical or chemical protection
    • E05Y2800/404—Physical or chemical protection against component faults or failure
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/40—Physical or chemical protection
    • E05Y2800/424—Physical or chemical protection against unintended use, e.g. protection against vandalism or sabotage
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/67—Materials; Strength alteration thereof
    • E05Y2800/684—Strength alteration by weakening, e.g. by applying grooves
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/146—Shutters
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/148—Windows

Definitions

  • the invention relates to a hinged shutter motor assembly to be fixed at an opening in a building, as well as to a home automation installation comprising such a hinged shutter motor assembly.
  • the solutions of the prior art define a synchronization of the movements of the two leaves.
  • the shutters must be closed or opened in a particular order, due to their asymmetry and the presence of a joint cover, that is to say a covering strip from one leaf to the other.
  • the main leaf comprising the covering blade or joint cover, must be driven first when opening and last when closing to ensure that the covering leaf does indeed cover a so-called secondary leaf.
  • a first motorization solution consists of using a monobloc motorisation assembly, integrating the two motors for each leaf in the same box.
  • Another motorisation solution consists of using independent motorisation modules, each comprising one motor, assigned to the motorisation of the leaf. 'a fighter.
  • a first mechanical module comprising a first motor drives a first leaf
  • a second mechanical module comprising a second motor drives a second leaf.
  • One of the two modules also includes an electronic control unit for the first and second motor.
  • the module comprising the control unit is referred to as an electromechanical module.
  • These two modules are generally covered with a finishing cover.
  • Each module also comprises a mechanical transmission device, in particular a gear transmission device, making it possible to transmit the movements supplied respectively by the motors to the main and secondary leaves.
  • a transmission shaft is located at the output of these transmission devices. Arms connect the transmission shaft to the leaves to transmit the rotational movement of the motor in a corresponding displacement of the leaf around its hinges.
  • Known motorization assemblies therefore comprise an electronic control unit, which controls the power supply to the motors and has in particular electronic monitoring means, in particular means for detecting a stop force (by measuring motor torque, variation of torque or underspeed). These force detection means make it possible to stop the motor when the forces detected exceed a predetermined threshold. This is to prevent damage to the motor in the event of too much force.
  • the forces detected at the level of the electronic unit are consecutive to forces applied to at least one of the leaves, in particular due to an obstacle or gusts of wind when the shutter is in motion or in an intermediate position between the fully open position. and the fully closed position of the leaves or an intrusion attempt, for example when the shutter is closed.
  • These forces are transmitted along the kinematic chain, that is to say at the level of the arms and then of the mechanical transmission devices to the engine.
  • the forces actually received by the components of the kinematic chain because they are brutal, can lead, despite the electronic monitoring means, to damage to the components of this chain. kinematics between the leaf and the motor.
  • the force detection means provided at the level of the electronic control unit can make it possible to limit the forces, for example those supplied by the motor if they are contrary to the forces exerted on the leaf. However, they cannot always protect the driveline. For example, in a particular case where a connection between the transmission shaft and the arm is in the form of a hexagonal connection, significant forces can lead to a degradation of the hexagonal connection, at the level of an arm or at the level. of a transmission shaft, causing significant clearances, or even a slippage of one of the parts relative to the other in subsequent movements. The motorization assembly may then no longer be able to transmit the torques necessary for driving the leaves in rotation.
  • the invention more particularly intends to remedy by proposing a motorization assembly protected in the event of a predefined torque being exceeded. applied to the shutter leaves and with resistance to mechanical fatigue resulting from the application of repeated loads.
  • the mechanical connection further comprises a mechanical fuse, the mechanical fuse comprising a fuse body, connected to the first part of the mechanical connection and a fuse ring connected to the second part of the mechanical connection, the body fuse and the fuse ring being interconnected by at least one breakable connection bridge, the connection bridge being able to be broken under the application of a force of a value greater than a predetermined force value .
  • the mechanical fuse interposed between the two parts of the mechanical connection ensures the protection of the electric motor. Breaking the connection bridge between the fuse body and the fuse ring breaks the mechanical link and prevents the transmission of forces greater than the predefined force value to the motor.
  • the assembly comprising the fuse ring and at least part of the connection bridges can be considered as a breakable part, connected to the fuse body and capable of detaching therefrom under the application of a force of a value greater than a predetermined force value.
  • the fuse ring cooperates with the second part of the mechanical link, being fixed in rotation with respect to the second part of the mechanical link.
  • the second part of the mechanical link may include a receiving zone for receiving the fuse ring, the latter thus cooperating with the receiving zone of the second part of the mechanical link.
  • the arm is integral with the fuse body and the fuse ring is mounted fixed in rotation on the transmission shaft.
  • the motor assembly comprises a washer and a fixing screw holding the arm and the mechanical fuse on the transmission shaft, the washer comprising an outside diameter greater than the inside diameter of the fuse body.
  • the washer thus covers the area of the fuse and holds the fuse body and the arm to prevent the latter from “falling” from the transmission axis by gravity after the rupture of the connection bridge (s).
  • the arm will therefore not be able to damage the shutter by falling.
  • the washer being tightened by the fixing screw on the transmission shaft, at the level of the fuse ring, it tends to take a curved shape which avoids transmitting the tightening at the level of the connection bridge (s). of the mechanical fuse.
  • the fuse ring comprises a central opening of polygonal shape, in particular hexagonal, cooperating with a transmission shaft of corresponding external shape.
  • the fuse body and the fuse ring are separated by at least one oblong hole having an internal curvature following an external edge of the fuse ring and an external curvature following an internal edge of the fuse body.
  • the elongated hole (s) extend between the fuse body and the fuse ring.
  • the oblong hole has a substantially regular width except for its ends at which this width gradually decreases, the ends of the oblong hole being rounded.
  • connection bridge comprises a variable width, taken in a direction perpendicular to the radii of the fuse ring.
  • the part of smaller width ensures the mechanical rupture of the connection bridge and the detachment of the fuse ring relative to the fuse body. Under the effect of a force greater than a predetermined force value, the mechanical fuse thus ensures the complete rupture of the mechanical link.
  • connection bridges without breaking the slope, which allows the breaking forces of these bridges to be controlled.
  • connection bridge comprises a preferential zone of mechanical rupture, the zone of mechanical rupture being situated at the level of the smallest width of the connection bridge.
  • the mechanical rupture zone corresponds to a zone of lower mechanical resistance, facilitating its cutting.
  • connection bridges is greater than or equal to two, the connection bridges being distributed regularly between the fuse body and the fuse ring.
  • the mechanical rupture zones are regularly distributed, as are the mechanical stresses and the displacement of the fuse ring relative to the fuse body after rupture is facilitated.
  • the motor assembly comprises an electronic control unit, the control unit comprising electronic monitoring means, in particular means for detecting a stop force, intended to stop the motor. electrical when the forces detected at the level of the electric motor or on the mechanical link exceed a predetermined threshold.
  • the electronic monitoring means associated with the mechanical fuse, ensure the protection of the motorization assembly against forces having variable values.
  • the present invention aims, according to a second aspect, a home automation installation comprising at least one swing shutter and a motor assembly according to the invention, assembled to the swing shutter.
  • This home automation installation has characteristics and advantages similar to those described above in relation to the motorization assembly according to the invention, as mentioned above.
  • the figures 1 and 2 show a home automation installation 100 with a shutter installed at an opening 2 of a building 3, for example an opening equipped with a window not shown.
  • the installation includes a motorization assembly 1 fixed to a lintel 4, above the opening 2.
  • the opening 2 is equipped with a shutter 5 composed of two leaves or leaves 5a and 5b which can pivot on hinges 6a , 6b so as to cover the opening 2 or to leave it uncovered, as shown in this figure.
  • the motorization assembly 1 comprises a finishing cover 10, covering part of the various components of the motorization assembly 1.
  • the motorization assembly 1 thus controls a shutter installation with a main leaf 5a comprising a cover strip 7 or joint cover and a secondary leaf 5b.
  • the main leaf 5a must be driven first when opening and last when closing to ensure that the cover blade 7 comes to cover the secondary leaf 5b.
  • the motorization assembly 1 comprises a first electromechanical module M1 fitted with a first electric motor MA and an electronic control unit 20, a second mechanical module M2 fitted with a second electric motor MB.
  • the electronic control unit unit 20 is in electrical connection with the two motors MA, MB.
  • Each module M1, M2 also comprises a mechanical transmission device 8a, 8b, in particular a gear transmission device, making it possible to transmit the movements provided respectively by the motors MA, MB to the leaves 5a, 5b.
  • Arms 9a, 9b connect the transmission devices 7a, 7b to the leaves 5a, 5b to transmit the rotational movement of the motor MA, MB corresponding to a movement of the leaf 5a, 5b around its hinges 6a, 6b.
  • LM denotes the mechanical connection between the electric motor MA, MB and the corresponding leaf 5a, 5b, in the assembled configuration of the motorization device.
  • the electronic control unit 20 controls the activation of the two motors MA, MB according to a sequence comprising a time lag between the activation of the priority motor MA and of the secondary motor MB: during a shutter 5 opening command, the priority motor MA is the motor activated first, the secondary motor MB being activated with a time offset To relative to the secondary motor MB, while on closing, the priority motor MA is activated second, with a time offset Tf with respect to the secondary motor MB, the offsets on opening and closing being able to be equal or different.
  • the electromechanical module M1 is associated with the main leaf 5a and the mechanical module M2 is associated with the secondary leaf 5b.
  • the priority motor MA being associated with the control of the secondary leaf 5b
  • the secondary motor MB being respectively associated with the main leaf, 5a
  • This priority inversion can be configured and stored in a memory (not shown) of the electronic control unit 20.
  • the motorisation assembly 1 comprises an electromechanical module M1 comprising an electric motor MA and an electronic control unit 20.
  • the motorization assembly 1 in particular the electronic control unit 20, comprises hardware and / or software means governing the control of the motors MA, MB.
  • the software means include computer programs.
  • the electronic control unit shown on figure 3 is supplied from the commercial electrical network, for example 230V AC or from another energy source such as a battery and / or a solar panel.
  • the electronic unit 20 comprises an electronic card 30 on which the electronic components for controlling the two motors are installed, in particular a microprocessor 31 comprising information inputs and outputs intended for controlling the motors MA, MB, a receiver 21, in particular. of the radiofrequency type, making it possible to receive control orders from a remote control point 110, in particular from a radio remote control or a wired remote control connected to the control unit 20, a Man-Machine interface comprising a display digital 22, simple control buttons (opening, closing, stop - alternating or sequential -, programming) 23 and / or one or more light diodes 24.
  • the Man-Machine interface is possibly accessible during installation , but no longer (or with difficulty) once the finishing cover 10 of the motorization assembly 1 is positioned on the modules M1, M2.
  • the buttons 23 can be used for manual control of the MA and MB motors and for pairing or association between the electronic control unit 20 and the remote control point 110.
  • the electronic control unit 20 further comprises means for detecting a stop force DBE. These can act by measuring torque, torque variation or underspeed. If a predetermined torque or torque variation threshold C1 is exceeded, the electronic control unit 20 cuts off the power to the motor.
  • the electronic control unit 20 can also include position counting means (not shown).
  • the motorization assembly 1 also comprises a frame 40 on which the mechanical M1 and electromechanical M2 modules are fixed.
  • the frame 40 comprises two independent frame elements 40a, 40b, which can be fixed to the lintel 4 of the opening 2.
  • the frame 40 is a one-piece frame, made to measure for an opening 2. The length of the frame 40 is then adapted to the width of the opening 2.
  • the two electromechanical M1 and mechanical M2 modules are installed independently on the frame 40.
  • the frame 40 visible to figure 4 and 5 is a metal support, in the form of a plate, comprising a flat base 42, intended to be fixed against the lintel 4 and an opposite face 43 provided with slides 45, 46, 47.
  • the flat base 42 of the frame 40 comprises fixing holes (not shown), these being intended for the passage of fixing screws (not shown) making it possible to fix the frame on the lintel 4.
  • the slides 45, 46, 47 are used to guide and hold a module M1 or M2 of the motorization assembly 1 on the frame 40 when the latter is fixed in position to the lintel 4;
  • the frame 40 thus comprises a central slide 46 and two parallel lateral slides 45, 47.
  • Different walls of the slide 45 thus form a U-shaped rail slightly closed on itself, leaving free a longitudinal opening whose width i45 is less than the width l45 of the rail formed by the slide 45 and therefore less than said screw head 65t .
  • the slides 46 and 47 are constructed substantially on the same model as the slide 45.
  • the side slides 45, 47 each further comprise a wall 48, 49 extending in the extension of one of the side walls, on the edges of the frame. 40.
  • These walls 48, 49 form a guide for the mechanical M2 or electromechanical M1 module to be mounted on the frame 40.
  • the screws 65, 66, 67, the heads of which 65t, 66t, 67t can slide in the guides are fixed on the module to be mounted on the frame element, as shown in figure 4 .
  • the screws 65, 66, 67 form suspension means for the module M1 or M2 in the frame 40.
  • the frame 40 or the independent frame elements 40a, 40b are fixed at the level of the zone where the main forces are found during the operation of the motorization assembly 1. Any other means of fixing the electromechanical module to the frame or directly to a support surface is also possible.
  • the module M1 comprises a housing 60 supporting the motor MA, the transmission device 8a and the arm 9a.
  • the housing 60 may be in several parts assembled together by suitable fixing means (not shown).
  • the housing also supports an output shaft 70 of the transmission device 8a, hereinafter called the transmission shaft.
  • the arm 9 is mounted on this shaft 70 by means of a washer 71 and a fixing screw 72 visible at the figure 6 .
  • the face of the housing supporting the arm 9 is called the top 62 of the housing while the opposite one is called the base 61 of the housing.
  • the arm is rotated independently of the motor, which has the effect of creating a large torque at the connection between the arm 9a, 9b and the corresponding transmission shaft 70.
  • the motorization assembly comprises a mechanical fuse 200, installed on the mechanical link LM between the electric motor MA, MB and the corresponding leaf 5a, 5b.
  • a mechanical fuse is equivalent to a device for breaking a kinematic chain, here the mechanical link LM between the motor and the shutter, as illustrated in figure 3 .
  • the mechanical link LM comprises a first part LM1 and a second part LM2, the mechanical fuse 200 being inserted between the two parts LM1, LM2 of the mechanical link LM.
  • the mechanical fuse 200 is inserted between the transmission shaft 70 and the arm 9a, 9b.
  • the mechanical fuse 200 participates in the mechanical transmission between the motor MA, MB and the leaf 5a, 5b in an assembled configuration of the motorization assembly, and is configured to break this mechanical link LM when a force is applied. greater than a predefined force, for example in the event of a predefined force being exceeded, for example a so-called breaking torque C2 at the level of the mechanical fuse 200.
  • a predefined force for example in the event of a predefined force being exceeded, for example a so-called breaking torque C2 at the level of the mechanical fuse 200.
  • it could be installed between each MA motor, MB and the corresponding arm 9a, 9b, elsewhere than between the transmission shaft 70 and the arm 9a, 9b.
  • the mechanical fuse 200 is integrally formed with the arm 9a, 9b.
  • the arm 9a, 9b and the mechanical fuse 200 are fixed to the transmission shaft by the washer 71 and the fixing screw 72.
  • the mechanical fuse 200 comprises a fuse body 202 and a fuse ring 204, interconnected by at least one connection bridge, in the example by three connection bridges 211, 212, 213, under the application of a breaking torque C2.
  • This breaking torque is of the order of 200 Nm, for example between 180 Nm and 250 Nm.
  • the assembly comprising the fuse ring 202 and at least part of the connection bridges 211, 212, 213 can be considered as a breakable part, connected to the fuse body 202 and capable of detaching therefrom under the application of a force of a value greater than a predetermined force value.
  • the fuse ring 202 cooperates with the second part LM2 of the mechanical link LM, being fixed in rotation with respect to the second part LM2 of the mechanical link LM.
  • the fuse body 202 is a substantially annular body having a central opening 202o.
  • the fuse body is possibly part of the arm 9a, 9b itself.
  • the fuse ring 204 is also a substantially annular and planar body.
  • the mechanical fuse 200 comprises, in the embodiment described, a plurality of connection bridges 211, 212, 213 in the form of breakable parts connecting the fuse body 202 to the fuse ring 204.
  • connection bridges 211, 212, 213 extend from an inner edge 202i of the fuse body 202 to an outer edge 204e of the fuse ring 204.
  • the connection bridges 211, 212, 213 each have a preferential mechanical rupture zone 231, 232, 233.
  • connection bridge 211, 212, 213 in fact has a variable width, taken in a direction perpendicular to the radii of the fuse ring 204.
  • a preferential mechanical rupture zone 231, 232, 233 is located at the level of the smaller width, corresponding to a zone of lower mechanical resistance, facilitating the cutting of the connection bridge 211, 212, 213.
  • connection bridges 211, 212, 213 are equal over the entire length of the connection bridge 211, 212, 213. They could however be different, with in particular a lesser thickness at the level of the smallest width.
  • connection bridges 211, 212, 213 between the fuse body 202 and the fuse ring 204 Due to the arrangement of the connection bridges 211, 212, 213 between the fuse body 202 and the fuse ring 204, the fuse body and the fuse ring are separated by oblong holes 221, 222, 223. having a radius of curvature, in particular an internal curvature along the outer edge 204e of the fuse ring 204 and an outer curvature along the inner edge 202i of the fuse body 202.
  • These oblong holes 221, 222, 223 have a width substantially regular except for their ends 221a, 221b, 222a, 22b, 223a, 223b at which this width gradually decreases, the ends of the oblong holes 221, 222, 223 being rounded.
  • the fuse ring 204 comprises a central opening 204o of hexagonal shape intended to cooperate with a hexagonal shape of the transmission shaft 70 by forming a hexagonal connection.
  • the mechanical fuse 200 can thus be assembled without play, or with controlled play, with the transmission shaft 70, by inserting the fuse ring 204 on the transmission shaft 70.
  • the cooperation of the shapes of the opening 204o central with the outer shape of the transmission shaft 70 ensures the rotational drive of the arm by the transmission shaft, through the connection bridges 211, 212, 213, in normal operation.
  • the second part LM2 of the mechanical link LM includes in particular the transmission shaft 70, which forms a reception area for the fuse ring 204, in particular for the central opening 204o of the fuse ring. 204.
  • connection bridges 211, 212, 213 are distributed regularly inside the fuse body 202, in other words around the fuse ring 204.
  • the oblong holes 221, 222, 223 are formed by cutting material by cutting. laser, by striking or by wire cutting.
  • the fuse ring and the fuse body are made by other manufacturing processes, such as machining, injection, additive manufacturing, etc.
  • connection bridges 211, 212, 213 are subjected to large shear forces which lead to the rupture of these connection bridges 211, 212, 213.
  • connection bridges 211, 212, 213 are preferably identical to each other, as is their constituent material. Since the connection bridges 211, 212, 213 are regularly distributed around the axis of the transmission shaft, the shear forces are the same at each connection bridge, which leads to their simultaneous rupture. Indeed, the breaking torque C2 is then applied to each of the connection bridges 211, 212, 213 in an equivalent manner. This makes it possible to avoid the rupture of a connection bridge 211, 212, 213 without rupture of another, which would reduce the breaking torque necessary to sever the remaining connection bridges 211, 212, 213.
  • the fuse body 202 is axially and radially detached completely from the fuse ring 204.
  • the rupture of the mechanical fuse 200 and the detachment of the fuse body 202 by compared to the fuse ring 204 releases the rotation between the arm 9a, 9b and the transmission shaft 70.
  • the arm 9a, 9b thus turns empty and no longer runs the risk of driving the motor MA, MB or the control device. transmission 8a, 8b and damage them.
  • Breaking the connection bridges 211, 212, 213 also allows free rotation of the MA, MB motor without driving the arm 9a, 9b, or vice versa, but while maintaining a connection between the arm 9a, 9b and the transmission shaft 70, in particular thanks to the washer 71. This prevents one end of the arm 9a, 9b from being free and the arm from striking into the window during movements of the leaf 5a, 5b, for example under the effect of the wind .
  • the breaking torque C2 for the mechanical fuse 200 depends in particular on the number of connection bridges, their shape, their positioning in the mechanical fuse 200, as well as the materials chosen for the mechanical fuse 200 and the transmission shaft 70.
  • the mechanical rupture zone 231, 232, 233 is located outside the circle C70 in which the transmission shaft 70 is circumscribed. Indeed, it is preferable that the rupture zone is located in a zone remote from the hexagonal connection to avoid a deformation of the latter and a play between the transmission shaft 70 and the fuse ring 204. This also prevents damage to the driveshaft during movements of the arm or driveshaft after breaking.
  • the rounded end of the oblong holes 221, 222, 223 form connecting bridges the edges of which do not have a break in slope.
  • the rounded end of the oblong holes 221, 222, 223 is formed in particular by a succession of circles of different radii, at least two circles of different radii being tangent. This allows the control of the efforts of breaking these bridges. A break in slope would weaken the bridge without this fragility being able to be well controlled.
  • the radius at the ends of the oblong holes 221, 222, 223 is of the order of 0.5 mm, which makes it possible to concentrate the stresses in static and to create a mode of breakage in shear.
  • Such a smaller radius at the ends also makes it possible to reduce the difference in stresses between the elastic resistance Re and the mechanical resistance Rm or tensile strength.
  • the elastic resistance Re corresponds to the point on a tensile curve for a material between the elastic zone and the plastic zone, the tensile curve representing a stress, for example in MPa, as a function of a displacement, for example in mm.
  • the tensile strength Rm corresponds to the point on the tensile curve corresponding to the maximum stress.
  • the radius of curvature is of the order of 3.5 mm away from the end, which makes it possible to improve the resistance to mechanical fatigue resulting from the application of repeated loads.
  • any angles forming slope breaks on the edges of the connection bridges 211, 212, 213 can be reduced or eliminated to increase the fatigue resistance, by finishing processes, such as tribofinishing or brushing, during the making oblong holes 221, 222, 223 and connecting bridges 211, 212, 213.
  • the mechanical rupture zone 231, 232, 233, 234 is located on a circle Cr, called the median rupture circle, located substantially halfway between an outer edge 200th of the fuse body 202 and an inner edge 204i of the fuse ring 204.
  • the middle rupture circle passes through the mechanical rupture zones 231, 232, 233, located at the level of the smallest width of the connection bridge (s) 211, 212, 213.
  • the mechanical fuse 200 is integrally formed with the arm 9a, 9b.
  • the arm 9a, 9b In the event of over-force leading to the breaking of the mechanical fuse 200, only the arm 9a, 9b is to be replaced: it is a simple and inexpensive mechanical part.
  • the integration of the mechanical fuse 200 in the arm 9a, 9b allows manufacturing and assembly to be simplified.
  • the material used for the arm 9a, 9b and therefore for the mechanical fuse 200 has interesting properties in terms of resistance and plastic behavior. It is in fact important for the mechanical fuse 200 to exhibit little or no plastic deformation before it breaks, so as to avoid introducing rotational play (due to plastic deformation) in the transmission chain.
  • the mechanical fuse 200 is an independent part, for example coupled to the arm 9a, 9b and to the transmission shaft so as to transmit the movement in normal operation between the two parts of the kinematic chain. .
  • the mechanical fuse 200 needs to be replaced.
  • its design is more complex because it must integrate coupling means, in particular coupling means to the arm 9a, 9b.
  • the mechanical fuse 200 is formed from high tensile steel, a material for which failure occurs quickly after the onset of plastic deformation.
  • the material chosen for the transmission shaft is as strong as possible: for example heat-treated steel.
  • the mechanical fuse 200 can be produced by molding, machining, stamping, or other methods of obtaining.
  • the mechanical fuse can be produced by laser cutting: the laser-cut shape, for example, makes it possible to produce the oblong holes with a chosen section. The laser cuts are made in such a way as to limit the heating at the level of the ends of the oblong holes by a passage of the laser beam in a short period of time.
  • the drive assembly can be suspended from a lintel above an opening, a member for holding the arm 9a, 9b on the transmission shaft must be provided, which retains the axial assembly between the arm 9a, 9b and the transmission shaft 70 including in the event of failure of the mechanical fuse 200.
  • This retaining element may comprise the fixing screw 72, screwed into a corresponding thread 73 provided in the transmission shaft 70, and the washer 71.
  • a flat washer 71 is used, the washer comprising an outside diameter greater than the inside diameter of the fuse body 202.
  • the washer 71 thus covers the area of the mechanical fuse 200 and maintains the fuse body 202 and the arm 9a, 9b to prevent the latter from "falling" from the transmission axis by gravity after the breaking of the connection bridges 211, 212, 213.
  • the washer 71 is clamped between the arm 9a, 9b, at the level of the mechanical fuse 200 and the fixing screw 72.
  • the washer 71 is tightened axially, along the axis X70 of the transmission shaft 70, opposite the end of the transmission shaft 70, at the level of the center of the washer 71.
  • the clamping forces thus cause a deformation of the washer 71 which takes a slightly curved shape from its center to 'at its outer periphery e.
  • the washer therefore does not transmit an axial mechanical stress, along the axis X70 of the transmission shaft 70, to the connection bridges 211, 212, 213. Otherwise, an axial stress could modify the behavior in terms of mechanical resistance to the breaking of the connection bridges 211, 212, 213, that is to say the value of the breaking torque C2. This value would then in fact be dependent on the tightening torque, the latter being random).
  • a lintel being generally defined as an architectural element supporting the materials of a wall above an opening in a building. It is in the same way applicable to the fixing of the frame elements in the lower position of the opening, that is to say at the level of a threshold of the opening, or in the lateral position, at the level of an opening. side upright of the opening.
  • the terms lintel, threshold or side upright all correspond to an architectural element of an opening.

Landscapes

  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Claims (10)

  1. Antriebseinheit (10) für Klappläden (5) bestehend aus mindestens einem ersten elektromechanischen
    Moduls (M1), wobei das erste elektromechanische Modul (M1) mindestens einen ersten Elektromotor (MA) enthält, die Antriebseinheit bestehend aus mindestens einer mechanische Verbindung (LM), die aus einem ersten Teil (LM1) und einem zweiten Teil (LM2) besteht, die mechanische Verbindung (LM) bestehend aus
    - einer mechanischen Übertragungsvorrichtung (8a, 8b),
    - einer Übertragungswelle (70), die von der mechanischen Übertragungsvorrichtung (8a, 8b) kommt,
    - ein Arm (9a, 9b),
    wobei der erste Elektromotor (MA) so konfiguriert ist, dass er mit der mechanischen Verbindung (LM) in der montierten Antriebseinheit mit einem Flügel (5a, 5b) des Klappladens (5) verbunden ist, so dass bei elektrischer Ansteuerung des ersten Elektromotors (MA) der Flügel (5a, 5b)
    bewegt wird, gekennzeichnet dadurch, dass die mechanische Verbindung (LM) außerdem eine mechanische Sicherung (200) enthält, die mechanische Sicherung (200) bestehend aus einem Sicherungskörper (202), der verbunden ist mit dem ersten Teil (LM1) der mechanischen Verbindung (LM) und aus einem Sicherungsring (204), der verbunden mit dem zweiten Teil (LM2) der mechanischen Verbindung ist, wobei der Sicherungskörper (202) und der Sicherungsring (204) miteinander durch
    mindestens einen brechbaren Verbindungssteg (211, 212, 213) verbunden sind, wobei der Verbindungssteg (211, 212, 213) durch Anwendung einer Kraft gebrochen werden kann, die höher ist als einvorbestimmter Kraftwert (C2).
  2. Antriebseinheit (10) nach Anspruch 1, gekennzeichnet dadurch, dass der Arm (9a, 9b) mit dem Sicherungskörper (202) verbunden ist und dass der Sicherungsring (204) zur Drehung an der Übertragungswelle (70) befestigt ist.
  3. Antriebseinheit (10) nach einem der vorhergehenden Ansprüche, gekennzeichnet dadurch, dass er aus einer Scheibe (71) und einer Befestigungsschraube (72) besteht, die den Arm (9a, 9b) und
    die mechanische Sicherung (200) an der Übertragungswelle (70) halten, wobei die Scheibe einen Außendurchmesser hat, der größer ist als der Innendurchmesser des Sicherungskörpers (202).
  4. Antriebseinheit (10) nach einem der vorhergehenden Ansprüche, gekennzeichnet dadurch, dass der Sicherungsring (204) eine polygonale Öffnung in der Mitte (2020) hat, insbesondere eine hexagonale Öffnung, die in die äußere korrespondierende Form der Übertragungswelle (70) passt.
  5. Antriebseinheit (10) nach einem der vorhergehenden Ansprüche, gekennzeichnet dadurch, dass der Sicherungskörper (202) und der Sicherungsring (204) mindestens von einem Langloch (221, 222, 223) getrennt sind, das eine interne Rundung aufweist, die einem äußeren Rand (204e) des Sicherungsrings (204) folgt und eine externe Rundung aufweist, die einem inneren Rand des Sicherungskörpers (202) folgt.
  6. Antriebseinheit (10nach dem vorhergehenden Anspruch, gekennzeichnet dadurch, dass dieses Langloch (221, 222, 223) eine wesentlich regelmäßige Breite hat, mit Ausnahme der Endpunkte, an denen diese Breite graduell abnimmt, wobei die Endpunkte des Langlochs (221, 222, 223) abgerundet sind.
  7. Antriebseinheit (10nach dem vorhergehenden Anspruch, gekennzeichnet dadurch, dass der Verbindungssteg (211, 212, 213) eine mechanische Bruchstelle (231, 232, 233) hat, wobei sich die mechanische Bruchstelle (231, 232, 233) auf der Höhe der geringsten Breite des Verbindungsstegs (211, 212, 213) befindet.
  8. Antriebseinheit (10) nach einem der vorhergehenden Ansprüche, gekennzeichnet dadurch, dass die Anzahl der Verbindungsstege (211, 212, 213) gleich oder mehr als zwei ist, wobei die Verbindungsstege (211, 212, 213) gleichmäßig zwischen dem Sicherungskörper (202) und dem Sicherungsring (204) verteilt sind.
  9. Antriebseinheit (10) nach einem der vorhergehenden Ansprüche, gekennzeichnet dadurch, dass sie eine elektronische Steuereinheit (20) enthält, wobei die elektronische Steuereinheit (20) aus elektronischen Überwachungsmitteln (DBE) besteht, insbesondere aus Mitteln zur Erkennung einer Endanschlagkraft, die dazu dienen, den Elektromotor (MA) zu stoppen, da die Kräfte, die am Elektromotor (MA) oder an der mechanischen Verbindung (LM) erkannt werden, einen vorgegebenen Grenzwert (C1) überschreiten.
  10. Home-Installation (100), die aus mindestens einem Klappladen (5) besteht und einer Antriebseinheit (10) nach einem der vorhergehenden Ansprüche, die am Klappladen (5) angebracht ist.
EP18213392.6A 2017-12-21 2018-12-18 Motorisierungsanlage für fensterladen, und mechanische schutzsicherung dieser motorisierungsanlage Active EP3502395B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1771411A FR3075851B1 (fr) 2017-12-21 2017-12-21 Ensemble de motorisation de volet battant et fusible mecanique de protection de cet ensemble de motorisation
FR1801089A FR3075850B1 (fr) 2017-12-21 2018-10-17 Ensemble de motorisation de volet battant et fusible mecanique de protecton de cet ensemble de motorisation

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Publication Number Publication Date
EP3502395A1 EP3502395A1 (de) 2019-06-26
EP3502395B1 true EP3502395B1 (de) 2021-03-31

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012102065A1 (de) * 2012-03-12 2013-09-12 Dorma Gmbh + Co. Kg Türbetätiger mit Verbindungsanordnung von Abtriebswelle und Kraftübertragungsgestänge
MX2016003120A (es) * 2013-09-09 2016-05-31 Yale Security Inc Aparato para conectar un cierre u operador de puerta a una puerta abatible.
US20150211278A1 (en) * 2014-01-24 2015-07-30 Stanley Security Solutions, Inc. Door closer with tri-lobe pinion

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