EP3705673B1 - Système d'entraînement électrique pour déplacer un élément lié à une fenêtre avec un verrou mécanique - Google Patents

Système d'entraînement électrique pour déplacer un élément lié à une fenêtre avec un verrou mécanique Download PDF

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Publication number
EP3705673B1
EP3705673B1 EP20154815.3A EP20154815A EP3705673B1 EP 3705673 B1 EP3705673 B1 EP 3705673B1 EP 20154815 A EP20154815 A EP 20154815A EP 3705673 B1 EP3705673 B1 EP 3705673B1
Authority
EP
European Patent Office
Prior art keywords
output shaft
drive system
electric drive
locking
window
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
EP20154815.3A
Other languages
German (de)
English (en)
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EP3705673A1 (fr
Inventor
Keld Sloth Christensen
Martin Armand Mortensen
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.)
VKR Holding AS
Original Assignee
VKR Holding AS
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Publication of EP3705673A1 publication Critical patent/EP3705673A1/fr
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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
    • E05F15/614—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by meshing gear wheels, one of which being mounted at the wing pivot axis; operated by a motor acting directly on the wing pivot axis
    • 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
    • E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/619—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using flexible or rigid rack-and-pinion arrangements
    • 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
    • E05Y2201/21—Brakes
    • 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
    • E05Y2201/218—Holders
    • E05Y2201/22—Locks
    • 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
    • E05Y2201/246—Actuation thereof by auxiliary motors, magnets, springs or weights
    • 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
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/418—Function thereof for holding
    • 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
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/42—Function thereof for locking
    • 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
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/428—Function thereof for suspending or supporting
    • 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
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/43—Motors
    • 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
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/43—Motors
    • E05Y2201/434—Electromotors; Details thereof
    • 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
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/43—Motors
    • E05Y2201/434—Electromotors; Details thereof
    • E05Y2201/438—Rotors
    • 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
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/47—Springs
    • E05Y2201/474—Compression springs
    • 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
    • E05Y2201/626—Levers
    • 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
    • E05Y2201/638—Cams; Ramps
    • 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
    • E05Y2201/644—Flexible elongated pulling elements
    • E05Y2201/656—Chains
    • 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
    • E05Y2201/71—Toothed gearing
    • E05Y2201/722—Racks
    • E05Y2201/724—Flexible
    • 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
    • E05Y2900/152—Roof windows

Definitions

  • the disclosure relates to an electric drive system for moving a window-related element such as e.g. a roof window sash, an awning, a blind, or a shutter between open and closed positions.
  • a window-related element such as e.g. a roof window sash, an awning, a blind, or a shutter between open and closed positions.
  • US 2009/019773 relates to a drive system for a motor vehicle door, in particular a sliding door.
  • the system comprises a drive motor and a connected drive means for moving the motor vehicle door along an opening/closing path.
  • a gear or torque converter act with different torques on the drive means depending on a respective load and/or signal.
  • EP 0 366 575 A1 and US 5 826 377 A relate to devices for controlling the opening and closing of building elements such as door or window panels. Both documents describe systems comprising a main motor as well as an associated electromagnet configured to prevent, by means of additional components, the shaft of the main motor from turning.
  • the window-related elements are affected by, e.g., gravity and the unwound hanging load.
  • means need to be provided to ensure that the window-related element remains in position also when the electric drive motor is deenergized. Friction in the mechanism that connects the electric motor to the window-related element can in some circumstances provide sufficient protection against inadvertent movement of the window-related element.
  • the load that acts on the window element is often unpredictable due to wind, snow load, and e.g. the (at the time of production of the window unknown) installation angle of the roof window.
  • a locking system for preventing an output shaft of a main electric motor of an electric drive system for driving a window-related element from rotating, the locking system comprising a mechanical locking arrangement and an auxiliary electric motor, the mechanical locking arrangement being resiliently biased in a first direction to prevent rotation of the output shaft, the auxiliary electric motor being configured to displace the resiliently biased mechanical locking arrangement against the bias, in a second opposite direction, to allow rotation of the output shaft.
  • a locking system which prevents rotation of a motor output shaft by being resiliently biased, but which can be released by means of an auxiliary electric motor, provides a reliable mechanical lock which only requires electrical energy when the main electric motor is in an operating state and the output shaft rotates, while securing the output shaft to prevent it from rotating, when the electric motor is a non-operating state.
  • the system is inherently safe since it will mechanically lock when the electric power is removed.
  • the locking system is configured to allow the output shaft to rotate when the main electric motor is energized, and to prevent the output shaft from rotating when the main electric motor is not energized.
  • the auxiliary motor is energized prior to, or simultaneously as, the main electric motor is deenergized, such that the locking mechanism is released at the latest simultaneously with the start of output shaft rotation.
  • the bias is sufficient to move the mechanical locking arrangement to a locked position when the auxiliary electric motor is not energized, allowing the locking system to be self-locking.
  • the mechanical locking arrangement provides a mechanical interlock preventing rotation of the output shaft.
  • the mechanical locking arrangement comprises a displaceable member such as e.g. a hinged lever.
  • a free end of the displaceable member preferably being resiliently biased towards a towards the output shaft.
  • the mechanical locking arrangement comprises at least one recess such as an axial groove in the output shaft or in a locking rotor mounted on the output shaft, and the displaceable member comprises a tooth shaped protrusion that is sized to fit into the at least one recess.
  • the mechanical locking arrangement comprises a tooth shaped protrusion on the output shaft, or on a locking rotor mounted on the output shaft, and which is sized to fit into the at least one recess, such as e.g. an axial groove, arranged in the displaceable member.
  • the tooth shaped protrusion engages the recess in order to interlock mechanically.
  • the free end of the displaceable member is resiliently biased towards the output shaft by a resilient element such as a spring, and wherein the free end of the displaceable member is moved away from the output shaft against the bias of the spring by, preferably by a rotatable cam or eccentric shaft operably coupled to an auxiliary electric motor.
  • a resilient element such as a spring
  • an electric drive system for driving a window-related element such as e.g. a sash, blind, shutter or awning
  • the electric drive system comprising a main electric motor having an output shaft, the output shaft being configured to rotate about a rotation axis of the output shaft, an actuator configured to apply an external load onto the output shaft, the external load being mainly caused by the weight of the window related element, and the locking system according to the above, the mechanical locking arrangement of the locking system being configured to prevent the output shaft from rotating by engaging the output shaft, the auxiliary electric motor of the locking system being configured to release the mechanical locking arrangement from the engagement with the output shaft, allowing the output shaft to rotate.
  • Such an electric drive system provides a mechanical lock which only requires electrical energy when the main electric motor is in an operating state, i.e. when the window-related element is moving between positions, while preventing the output shaft of the main electric motor from rotating when in a non-operating state, i.e. when the window-related element is stationary, e.g. in an open position.
  • the main electric motor is operably coupled to the window-related element by a drive mechanism, the drive mechanism preferably including a reduction gear.
  • the mechanical locking arrangement comprises a cam configured to rotate about a first axis parallel with the rotation axis, a lever comprising a first lever end, a second lever end, and a protrusion, the lever being pivotable at the first lever end about a second axis parallel with the rotation axis and distinct from the first axis, the protrusion extending in a direction towards the rotation axis and the first axis, a resilient element applying a biasing force onto the second lever end, such that the second lever end is biased towards a periphery of the cam, a locking rotor fixedly connected to the output shaft, the locking rotor sharing the rotation axis with the output shaft, the locking rotor comprising at least one peripheral recess configured to receive the protrusion, wherein, when the cam is in a first rotary position, the protrusion engages the recess, preventing the locking rotor and the output shaft from rotating about the rotation axis, and, when the cam is in a first rotary position, the
  • the resilient element is compressed as the cam rotates from the first rotary position to the second rotary position, and is decompressed as the cam rotates from the second rotary position to the first rotary position.
  • the protrusion and the peripheral recess(es) have a longitudinal extension extending parallel to, and in a plane including, the rotation axis.
  • the actuator is a linear actuator, preferably a chain actuator.
  • the mechanical locking arrangement further comprises a support frame, the lever being at least partially enclosed by the support frame, the locking rotor, and the cam.
  • the resilient element extends between the second lever end and the support frame.
  • the resilient element is a spring.
  • a roof window comprising a sash and a frame adapted for receiving the sash, the sash being configured to pivot around a pivot axis so as to open the sash towards an outer side of the window, the roof window further comprising an electric drive system according to the above, the actuator of the electric drive system being adapted for pivoting the sash in relation to the frame against a load of the sash, the sash being maintained in an open position by means of the electric drive system.
  • the sash is maintained in the open position by means of the electric drive system when the electric drive system is not energized, preferably by the electric drive system itself only.
  • Fig. 1 is a diagrammatic illustration of an electric drive system 1 for moving an element 2 related to a window between open and closed positions.
  • the window is a roof window 17 that is installed at an inclination corresponding to the inclination of the roof and the window-related element 2 is a top hung sash.
  • the roof window 17 comprises a sash 2 and a frame 3 adapted for receiving the sash 2, and the sash 2 is configured to pivot around a pivot axis so as to open the sash 2 towards an outer side of the window.
  • sash 2 is shown in an open position by unbroken lines and in a closed position by broken lines.
  • the curved double arrow line illustrates movement of the sash 2. It is understood that the element 2 that relates to a window does not need to be a sash, but could instead be e.g. a blind, shutter, or an awning.
  • the roof window 17 further comprises an electric drive system 1.
  • the electric drive system 1 comprises a main electric motor 4 that is operably coupled to the window-related element 2 by a drive mechanism 6.
  • the main electric motor 4 can e.g. be any suitable AC or DC drive motor with an output shaft 5, such as a tubular linear motor, and is preferably a main electric motor that itself provides some level of braking when it is not energized.
  • the output shaft 5 is coupled to the drive mechanism 6.
  • the drive mechanism 6 comprises, in one embodiment, a reduction gear.
  • the electric drive motor 4 comprises a housing from which the drive output shaft 5 protrudes.
  • the output shaft 5 rotates when the main electric motor 4 is energized and the direction of rotation can be chosen by an operator.
  • the electric drive motor 4 is provided with electrical contacts for connection to electric power.
  • the electric drive system 1 pivots the window-related element/sash 2 in relation to the frame 3 and against a load of the sash 2, the load being mainly caused by the weight of the window-related element but also possibly cause by additional forces due to e.g. wind or build-up of snow.
  • the window-related element/sash 2 is also maintained in an open position by means of the electric drive system 1.
  • the main electric motor 4 of the electric drive system 1 is not energized and the sash 2 is maintained in the open position by means of the electric drive system 1 only.
  • the roof window 17 does not comprise any further support elements, such as gas springs, for maintaining the open sash 2 in position relative the frame 3 against the load of the sash 2.
  • Figs. 2 to 5 show the electric drive system 1 in greater detail.
  • the electric drive system 1 comprises the above-mentioned main electric motor 4 with output shaft 5.
  • the output shaft 5 is configured to rotate about the rotation axis A of the output shaft 5, as indicated in Figs. 3 and 4 .
  • the electric drive system 1 further comprises an actuator 7 configured to apply an external load onto the output shaft 5, the external load being mainly caused by the weight of the window-related element 2, and a locking system 8.
  • the locking system 8 provides a mechanical interlock preventing the output shaft 5 of the main electric motor 4 from rotating, at least temporarily, and comprises mechanical locking arrangement 9 and an auxiliary electric motor 10.
  • the mechanical locking arrangement 9 is resiliently biased in a first direction to prevent rotation of the output shaft 5, preferably in a direction towards the output shaft 5 as shown in Figs. 5 and 6 . Preferably, rotation is prevented by the mechanical locking arrangement 9 engaging the output shaft 5 directly.
  • the auxiliary electric motor 10 is configured to displace the resiliently biased mechanical locking arrangement 9 against the bias, in a second opposite direction, preferably in a direction away from the output shaft 5, to allow rotation of the output shaft 5. The rotation is allowed as the auxiliary electric motor 10 acts to release the mechanical locking arrangement 9 from the engagement with the output shaft 5.
  • the locking system 8 allows the output shaft 5 to rotate when the main electric motor 4 is energized, and prevents the output shaft 5 from rotating when the main electric motor 4 is not energized.
  • the main electric motor 4 is preferably energized when moving the window-related element/sash 2 between positions, and deenergized when the window-related element/sash 2 is stationary in an open position.
  • the auxiliary motor 10 may be deenergized prior to, or simultaneously as, the main electric motor 4 is deenergized.
  • the bias of the mechanical locking arrangement 9 may be sufficient to move the mechanical locking arrangement 9 to a locked position when the auxiliary electric motor 10 is not energized.
  • the actuator 7 is connected to a first end of the output shaft 5, and the locking system 8 is connected to a second end of the output shaft 5.
  • the actuator 7 may be a linear actuator, preferably a chain actuator.
  • the mechanical locking arrangement 9 comprises a cam 11 configured to rotate about a first axis B parallel with the rotation axis A, which cam 11 is operably coupled to and rotated by the auxiliary electric motor 10.
  • the rotational movement of the cam 11 is illustrated by the curved line with double sided arrows in Fig. 6 .
  • the mechanical locking arrangement 9 comprises an eccentric shaft which is operably coupled to the auxiliary electric motor.
  • the mechanical locking arrangement 9 further comprises a displaceable member such as a hinged lever 12 comprising a first lever end 12a, a second lever end 12b, and, in one embodiment, a protrusion 12c.
  • the lever 12 is pivotable at the first lever end 12a about a second axis C parallel with the rotation axis A and distinct from the first axis B.
  • the protrusion 12a extends in a direction towards the rotation axis A and the first axis B.
  • the protrusion may be tooth shaped.
  • the resilient element 13 extends between the second lever end 12b and a support frame 16.
  • a locking rotor 14 is fixedly connected to the output shaft 5, such that the locking rotor 14 shares rotation axis A with the output shaft 5.
  • the locking rotor 14 may comprise at least one peripheral recess 15, preferably three equidistantly spaced peripheral recesses 15, configured to receive the protrusion 12c.
  • the above-mentioned protrusion 12c is sized to fit into the recess 15 and engages the recess 15 in order to interlock mechanically.
  • the three equidistantly spaced peripheral recesses 15 are arranged directly in the output shaft 5.
  • the protrusion 12c is arranged on the output shaft 5 or on the locking rotor 14, and the recess is arranged on the lever 12.
  • the rotational movement of the locking rotor 14 is driven by the rotation of the output shaft 5.
  • the locking rotor 14 is directly coupled to the output shaft 5 to rotate in unison therewith.
  • the output shaft 5 may, e.g., be provided with an integral key and the locking rotor 14 provided with a central bore with a keyway opening to the central bore.
  • the output shaft 5 is (fittingly) inserted into the central bore with the integral key received in the keyway.
  • the protrusion 12c engages one recess 15, and hence prevents the locking rotor 14 and the output shaft 5 from rotating about the rotation axis A.
  • the cam 11 is moved to a second rotary position, the free second lever end 12b is moved in a direction away from the output shaft 5 and, subsequently, the protrusion 12c is released from the recess 15 and the locking rotor 14 and the output shaft 5 are allowed to rotate about the rotation axis A in response to external load.
  • the lever protrusion 12c may end up in a position which is misaligned with any of the peripheral recesses 15.
  • the output shaft 5 and locking rotor 14 are allowed to rotate until the lever protrusion 12c aligns with the next coming peripheral recess 15.
  • the bias provided by the resilient element 13 is sufficient to allow the lever protrusion 12c to engage a peripheral recess 15 when the auxiliary electric motor 10 is not energized.
  • the resilient element 13 is compressed as the cam 11 rotates from the first rotary position to the second rotary position, and is decompressed as the cam 11 rotates from the second rotary position to the first rotary position.
  • the protrusion 12c and the peripheral recesses 15 all have longitudinal extensions extending parallel to, and in a plane including, the rotation axis A.
  • the recesses essentially form longitudinally extending axial grooves in the surface of the locking rotor 14 and, correspondingly, the protrusion 12c essentially forms a longitudinally extending ridge.
  • the mechanical locking arrangement 9 further comprises a support frame 16, and the lever 12 is at least partially enclosed by the support frame 16, the locking rotor 14, and the cam 11.
  • the support frame may comprise of one integral part or several individual parts as shown in Figs. 5 and 6 .

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Claims (15)

  1. Système de verrouillage (8) pour empêcher un arbre de sortie (5) d'un moteur électrique principal (4) d'un système d'entraînement électrique pour entraîner un élément associé à une fenêtre de tourner,
    ledit système de verrouillage (8) comprenant un agencement de verrouillage mécanique (9) et un moteur électrique auxiliaire (10),
    ledit agencement de verrouillage mécanique (9) étant sollicité de manière élastique dans une première direction pour empêcher la rotation dudit arbre de sortie (5),
    ledit moteur électrique auxiliaire (10) étant configuré pour déplacer ledit agencement de verrouillage mécanique sollicité de manière élastique (9) à l'encontre de ladite sollicitation, dans un deuxième direction opposée, pour permettre la rotation dudit arbre de sortie (5).
  2. Système de verrouillage (8) selon la revendication 1, configuré pour permettre audit arbre de sortie (5) de tourner lorsque ledit moteur électrique principal (4) est mis sous tension, et pour empêcher ledit arbre de sortie (5) de tourner lorsque ledit moteur électrique principal (4) n'est pas mis sous tension.
  3. Système de verrouillage (8) selon la revendication 1 ou 2, dans lequel ledit moteur auxiliaire est mis sous tension avant ou simultanément à la mise hors tension dudit moteur électrique principal (4).
  4. Système de verrouillage (8) selon une quelconque des revendications précédentes, dans lequel ladite sollicitation est suffisante pour déplacer ledit agencement de verrouillage mécanique (9) vers une position verrouillée lorsque ledit moteur électrique auxiliaire (10) n'est pas mis sous tension.
  5. Système d'entraînement électrique (1) pour entraîner un élément associé à une fenêtre (2), tel que par ex. un ouvrant, un store, un volet ou un auvent, ledit système d'entraînement électrique (1) comprenant :
    un moteur électrique principal (4) ayant un arbre de sortie (5), ledit arbre de sortie (5) étant configuré pour tourner autour d'un axe de rotation (A) dudit arbre de sortie (5),
    un actionneur (7) configuré pour appliquer une charge externe sur ledit arbre de sortie (5), ladite charge externe étant principalement provoquée par le poids dudit élément associé à la fenêtre (2), et
    le système de verrouillage (8) selon une quelconque des revendications précédentes,
    l'agencement de verrouillage mécanique (9) dudit système de verrouillage (8) étant configuré pour empêcher ledit arbre de sortie (5) de tourner en venant en prise avec ledit arbre de sortie (5),
    le moteur électrique auxiliaire (10) dudit système de verrouillage (8) étant configuré pour débloquer ledit agencement de verrouillage mécanique (9) de ladite mise en prise avec ledit arbre de sortie (5), ce qui permet audit arbre de sortie (5) de tourner.
  6. Système d'entraînement électrique (1) selon la revendication 5, dans lequel ledit moteur électrique principal (4) est couplé de manière fonctionnelle audit élément associé à la fenêtre (2) par un mécanisme d'entraînement (6), ledit mécanisme d'entraînement (6) comprenant de préférence un réducteur à engrenage.
  7. Système d'entraînement électrique (1) selon la revendication 5 ou 6, dans lequel ledit agencement de verrouillage mécanique (9) comprend :
    - une came (11) configurée pour tourner autour d'un premier axe (B) parallèle audit axe de rotation (A),
    - un levier (12) comprenant une première extrémité de levier (12a), une deuxième extrémité de levier (12b) et une protubérance (12c), ledit levier (12) pouvant pivoter au niveau de ladite première extrémité de levier (12a) autour d'un deuxième axe (C) parallèle audit axe de rotation (A) et distinct dudit premier axe (B),
    ladite protubérance (12a) s'étendant dans une direction vers ledit axe de rotation (A) et ledit premier axe (B),
    - un élément élastique (13) appliquant une force de sollicitation sur ladite deuxième extrémité de levier (12b) de telle sorte que ladite deuxième extrémité de levier (12b) soit sollicitée vers une périphérie de ladite came (11),
    - un rotor de verrouillage (14) raccordé fixement audit arbre de sortie (5), ledit rotor de verrouillage (14) partageant ledit axe de rotation (A) avec ledit arbre de sortie (5),
    ledit rotor de verrouillage (14) comprenant au moins un évidement périphérique (15) configuré pour recevoir ladite protubérance (12c),
    dans lequel, lorsque ladite came (11) est dans une première position rotative, ladite protubérance (12c) vient en prise avec ledit évidement (15), empêchant ledit rotor de verrouillage (14) et ledit arbre de sortie (5) de tourner autour dudit axe de rotation (A), et, lorsque ladite came (11) est dans une deuxième position rotative, ladite protubérance (12c) est débloquée dudit évidement (15) et ledit rotor de verrouillage (14) et ledit arbre de sortie (5) peuvent tourner autour dudit axe de rotation (A) en réponse à ladite charge externe.
  8. Système d'entraînement électrique (1) selon la revendication 7, dans lequel ledit élément élastique (13) est comprimé lorsque ladite came (11) tourne depuis ladite première position rotative vers ladite deuxième position rotative, et est décomprimé lorsque ladite came (11) tourne depuis ladite deuxième position rotative vers ladite première position rotative.
  9. Système d'entraînement électrique (1) selon la revendication 7 ou 8, dans lequel ladite protubérance (12c) et ledit évidement périphérique (15) ont une extension longitudinale s'étendant parallèlement et dans un plan incluant ledit axe de rotation (A).
  10. Système d'entraînement électrique (1) selon une quelconque des revendications 5 à 9, dans lequel ledit actionneur (7) est un actionneur linéaire, de préférence un actionneur à chaîne.
  11. Système d'entraînement électrique (1) selon une quelconque des revendications 7 à 10, dans lequel ledit agencement de verrouillage mécanique (9) comprend en outre un cadre de support (16), ledit levier (12) étant au moins partiellement entouré par ledit cadre de support (16), ledit rotor de verrouillage (14), et sa came (11).
  12. Système d'entraînement électrique (1) selon une quelconque des revendications 7 à 11, dans lequel ledit élément élastique (13) s'étend entre ladite deuxième extrémité de levier (12b) et ledit cadre de support (16) .
  13. Système d'entraînement électrique (1) selon une quelconque des revendications 7 à 12, dans lequel ledit élément élastique (13) est un ressort.
  14. Fenêtre de toit (17) comprenant un châssis (2) et un cadre (3) adapté pour recevoir ledit châssis (2), ledit châssis (2) étant configuré pour pivoter autour d'un axe de pivotement de manière à ouvrir ledit châssis (2) vers un côté extérieur de ladite fenêtre, ladite fenêtre de toit comprenant en outre un système d'entraînement électrique (1) selon une quelconque des revendications 5 à 13,
    l'actionneur (7) dudit système d'entraînement électrique (1) étant adapté pour faire pivoter ledit châssis (2) par rapport audit cadre (3) à l'encontre d'une charge dudit châssis (2),
    ledit châssis (2) étant maintenu en position ouverte au moyen dudit système d'entraînement électrique (1).
  15. Fenêtre de toit (17) selon la revendication 14, dans laquelle ledit châssis (2) est maintenu dans ladite position ouverte au moyen dudit système d'entraînement électrique (1) lorsque ledit système d'entraînement électrique (1) n'est pas mis sous tension, de préférence par le système d'entraînement électrique lui-même uniquement.
EP20154815.3A 2019-03-04 2020-01-31 Système d'entraînement électrique pour déplacer un élément lié à une fenêtre avec un verrou mécanique Active EP3705673B1 (fr)

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EP3705673B1 true EP3705673B1 (fr) 2023-12-06

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2638201A1 (fr) * 1988-10-24 1990-04-27 Jeandeaud Jean Claude Dispositif pour commander l'ouverture et la fermeture de vantaux, tels que portes, fenetres, volets, portails ou analogues
US5826377A (en) * 1996-08-29 1998-10-27 Simson; Anton K. Remotely-driven power window
DE102004028760A1 (de) * 2004-06-16 2006-01-12 Kiekert Ag Antriebsvorrichtung für eine Kraftfahrzeugtür, insbesondere Schiebetür

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