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EP4279691B1 - Entraînement de porte - Google Patents

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Publication number
EP4279691B1
EP4279691B1 EP23172513.6A EP23172513A EP4279691B1 EP 4279691 B1 EP4279691 B1 EP 4279691B1 EP 23172513 A EP23172513 A EP 23172513A EP 4279691 B1 EP4279691 B1 EP 4279691B1
Authority
EP
European Patent Office
Prior art keywords
holding
door
drive
piston element
nut
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
EP23172513.6A
Other languages
German (de)
English (en)
Other versions
EP4279691A1 (fr
Inventor
Thomas Stoll
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.)
Geze GmbH
Original Assignee
Geze GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Geze GmbH filed Critical Geze GmbH
Publication of EP4279691A1 publication Critical patent/EP4279691A1/fr
Application granted granted Critical
Publication of EP4279691B1 publication Critical patent/EP4279691B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/002—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means
    • E05F1/006—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means by emergency conditions, e.g. fire
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E05F3/221—Mechanical power-locks, e.g. for holding the wing open or for free-moving zones
    • E05F3/222—Mechanical power-locks, e.g. for holding the wing open or for free-moving zones electrically operated
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E05F3/224—Additional arrangements for closers, e.g. for holding the wing in opened or other position for assisting in opening the wing
    • 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
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E05F3/102—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with rack-and-pinion transmission between driving shaft and piston within the closer housing
    • 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
    • E05Y2201/234—Actuation thereof by automatically acting means direction dependent
    • 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
    • E05Y2201/24—Actuation thereof by automatically acting means using lost motion
    • 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
    • E05Y2201/43—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
    • E05Y2201/46—Magnets
    • E05Y2201/462—Electromagnets
    • 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
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/61—Power supply
    • E05Y2400/612—Batteries
    • 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
    • E05Y2900/132—Doors

Definitions

  • the invention relates to a door drive with a freewheel function, comprising a drive mechanism that can be coupled to a door and has a piston element that can be moved axially between an initial position and a locking position, a closing spring for acting on the piston element in the closing direction of the door, and a freewheel for decoupling a movement of the door from a movement of the piston element in the assembled state of the door drive, wherein at least one reaching of the locking position by the piston element activates the freewheel, according to the preamble of claim 1.
  • a door drive of the type mentioned above is made of EP 0 166 285 A2 known.
  • a mechanical energy storage device generally a closing spring
  • the mechanical energy stored in the energy storage device is used to independently close the door or, if necessary, to keep the door closed. This enables such purely mechanical free-swing door closers to be used in critical areas, for example on fire doors.
  • EP 0 166 285 A2 discloses a door closer with a closer shaft that can be loaded in the closing direction and that guides the movable piston of a hydraulic piston-cylinder unit that serves damping purposes.
  • the pressure chamber of the piston-cylinder unit is connected to the pressure-free chamber on the one hand via a return channel with a throttle device and on the other hand via a check valve that opens towards the pressure chamber, with a self-moving support member being connected between the piston and the spring arrangement.
  • This support member can be driven in a controlled manner by external energy in the sense of a spring preload depending on the door operation.
  • the damping piston is constantly loaded in the closing direction by a second energy accumulator which exerts a lower force than the spring arrangement.
  • DE 10 2016 123 516 A1 discloses a free-wheel door closer with a door closer shaft mounted so that it can rotate about its axis of rotation, on which a tensionable door closer spring acts via a gear, in particular applying a drive torque for automatically closing a door or a gate, wherein a driver element is arranged on the door closer shaft in a rotationally fixed manner, which acts on a lever arm mounted so that it can rotate on the door closer shaft or the driver element, wherein a clutch is provided, in particular only acting in one direction of rotation, which is connected on the output side to the door closer shaft or to a part connected to the door closer shaft in a rotationally fixed manner.
  • a drive for adjusting the clutch itself or a locking mechanism, which acts on the input side of the clutch, is provided in such a way that in one operating position of the drive the door closer shaft can rotate freely in both directions of rotation and in the other operating position of the drive the door closer shaft is prevented from rotating in one direction of rotation.
  • EP 0 137 861 A1 discloses a door closer with a closer shaft loaded in the closing direction by a spring arrangement.
  • the closer shaft guides the movable piston of a hydraulic piston-cylinder unit used for damping purposes.
  • the pressure chamber of the piston-cylinder unit is connected to its pressure-free chamber on the one hand via a return channel with a throttle device and on the other hand via a check valve opening towards the pressure chamber.
  • a self-moving support member is connected between the piston and the spring arrangement, which can be driven in a controlled manner by external energy in the sense of a spring preload depending on the door operation.
  • the object of the present invention is to at least partially remedy the disadvantages of known purely mechanical door closers and known door drives of the prior art described above.
  • the object of the present invention is to create a door drive with freewheel functionality, in which a driven pre-tensioning of a mechanical energy store is possible, which at the same time retains the mechanical closer functionality when the mechanical energy store is triggered and is also designed to save installation space and is cost-effective.
  • a door drive with a freewheel function comprising a drive mechanism that can be coupled to a door and has a piston element that can be moved axially between an initial position and a locking position, a closing spring for acting on the piston element in the closing direction of the door, and a freewheel for decoupling a movement of the door from a movement of the piston element in the assembled state of the door drive, wherein at least one reaching of the locking position by the piston element activates the freewheel.
  • the drive mechanism for pre-tensioning the closing spring of the door drive comprises an electrical actuating unit with a pulling mechanism, wherein when the electrical actuating unit is actuated, the pulling mechanism pulls the piston element against the force of the closing spring from the starting position into the locking position, in which the actuating unit locks the piston element, so that the activated freewheel in the assembled state of the door drive allows the door to be moved freely manually without being acted upon by the closing spring, wherein when a triggering situation occurs, the actuating unit releases the piston element for movement against the deflection direction into the starting position in order to close the door by means of the force of the closing spring or to hold it in a closed position.
  • the door drive according to the invention is intended for use on doors and can therefore be used with them and arranged accordingly. Without limiting the function of the door drive according to the invention, a hinge-side or hinge-opposite installation as well as a head installation on a door lintel or an installation on a door leaf of the door are possible.
  • a drive mechanism of the door drive which is at least partially arranged in a housing or covered by a hood, can be used, in particular for example via a closer shaft, a closer lever and/or a Lever-slide rail unit, after pre-tensioning the closing spring, this door can be closed automatically by the mechanical energy stored in the closing spring.
  • the piston element can be moved from an initial position against the force of the closing spring along its deflection direction, whereby mechanical energy is stored in the closing spring.
  • the freewheel is mounted, for example, between a closer shaft, the rotation of which is coupled to the axial movement of the piston element, for example via a meshing engagement of a pinion arranged on the closer shaft in a rack section of the piston element, and a closer lever.
  • a closer shaft to the movement of the piston element via a cam contour on the closer shaft and a rolling element connected to the piston element.
  • the freewheel enables the door or the door leaf to move with at least essentially no resistance.
  • the closing spring which represents a mechanical energy storage device, for example by a user or an external trigger signal
  • the stored mechanical energy is used to carry out a closing process of the door independently and in particular without power or without electricity or, if necessary, to keep the door closed. This enables such door drives to be used in critical areas, for example on fire doors.
  • the door drive according to the invention additionally has an electrical actuating unit with a pulling mechanism.
  • This actuating unit can, for example, also be arranged in the housing of the door drive or integrated into it. It is also conceivable to flange-mount the actuating unit or arrange it externally in a corresponding manner on the housing of the rest of the door drive.
  • the pulling mechanism is driven by the electrical actuating unit, which is or can be connected to an external and/or internal electrical power supply.
  • This pulling mechanism is at least temporarily mechanically operatively connected to the piston element and, in particular when there is an operative connection with the piston element, can pull the piston element as the output element of the actuating unit against the force of the closing spring, which automatically pre-tensions the closing spring. In particular, this pre-tensioning process takes place until the piston element has reached a locking position. The piston element is then locked in this locking position by the actuating unit.
  • the locking of the piston element in the locking position enables the door to be moved without being acted upon by the closing spring, particularly after the pre-tensioning process.
  • the pre-tensioning of the closing spring by the electrical actuating unit can be carried out completely decoupled from the door and thus without the door moving, for example by means of a locking lug that can be easily pushed over.
  • the mechanical coupling when pre-tensioning the closing spring can be easily released by an axial pull on the piston element caused by the actuating unit, and the The pre-tensioning of the closing spring caused by the electrical actuating unit can take place independently of the rotary movement of the door.
  • a coupling can make it possible, for example, for the door to be pulled open during the pre-tensioning process when the door is unlocked and released.
  • This provides, particularly in conjunction with electrical control of the corresponding locking device of the door, a completely automatic opening of the door, for example for young, old and/or physically disabled people or even for autonomous vehicles. Due to the easy detachability mentioned above, the mechanical coupling can be released at any time during or after the opening process, particularly for example when the door is opening at an angle of greater than 50°, without great effort and the door can be put into simple freewheel mode.
  • the door drive according to the invention provides that the actuating unit releases the piston element when a triggering situation occurs, for example when a user triggers it or when internal or external trigger signals are received.
  • a triggering situation occurs, for example when a user triggers it or when internal or external trigger signals are received.
  • the locking of the piston element in the locking position is released by the actuating unit.
  • the closing spring is no longer held and can relax.
  • the freewheel is designed accordingly, for example by means of a positive connection in the closing direction of the door, so that a movement of the piston element against the deflection direction, i.e.
  • the closing spring also moves the piston element to its starting position, in which a connection that drives the door in the closing direction is then also created via the freewheel between the closing shaft and the closing lever. In this way, the door is held in the closed position.
  • the door drive according to the invention enables electrically provided pre-tensioning of the closing spring and, through the internal locking of the piston element by the actuating unit and the freewheel, subsequent actuation of the door without being acted upon by the closing spring.
  • this pre-tensioning of the closing spring can also be accompanied by an electrically driven opening of the door.
  • the door drive according to the invention can be used, for example on fire doors, by closing or keeping the door closed when a trigger situation occurs, which can be done manually and/or automatically and/or due to a power failure.
  • the integration of the actuating unit as a component of the door drive according to the invention also enables a particularly compact and space-saving design.
  • the door drive according to the invention can also be provided with the fact that even after the piston element has been moved into the locking position by a manual opening movement of the door, the actuating unit locks the piston element in the locking position.
  • a manual opening movement of the door automatically moves the piston element along the deflection direction and the closing spring is thereby pre-tensioned.
  • the actuating unit also locks the piston element in the locking position in this case.
  • the door drive according to the invention can be designed in such a way that the pulling mechanism can be switched between a state in which the actuating unit and the piston element are coupled and a state in which the actuating unit and the piston element are uncoupled, whereby the pulling mechanism assumes the coupling state when the piston element is pulled and locked and the uncoupling state when the piston element is released, preferably independently.
  • the pulling mechanism, and thus the actuating unit can be actively controlled in such a way that a mechanical operative connection can be established and released, for example by means of a positive engagement or a non-positive frictional connection.
  • the piston element can be pulled and held in its locking position and, on the other hand, the piston element can be released in a particularly simple, safe and, in particular, controllable manner.
  • the uncoupling state can be assumed independently, for example, when the triggering situation occurs, so that the release of the piston element can be ensured, in particular, for example, in the event of a power failure.
  • the actuating unit has an electric motor unit, wherein the pulling mechanism can be driven by the electric motor unit for converting a rotary movement of the electric motor unit in a pre-tensioning direction of rotation into a translatory movement in the deflection direction, wherein when the electric motor unit is actuated in the pre-tensioning direction of rotation, the pulling mechanism moves the piston element against the force of the closing spring from the starting position into the locking position.
  • an electric motor unit is provided which is connected or can be connected to an external and/or internal electrical power supply and which drives the pulling mechanism.
  • the motor unit can also be designed together with a gear as a combined gear motor unit.
  • the pulling mechanism is at least temporarily mechanically operatively connected to both the motor unit and the piston element and can in particular convert the rotary movement in the preloading direction provided by the motor unit into a translatory movement of the piston element in the deflection direction. If there is an operative connection with the piston element, the latter is thus pulled by the pulling mechanism against the force of the closing spring when the motor unit is running, which automatically preloads the closing spring. In particular, this preloading process takes place until the piston element has reached a locking position. In this locking position, the piston element is then locked by the actuating unit, in particular for example by the pulling mechanism and/or by the electric motor unit.
  • the door drive according to the invention is characterized in that the pull mechanism has a drive shaft that can be driven rotatably by the electric motor unit, a tubular coupling element connected to the piston element, in particular in one piece, and a nut element arranged between the drive shaft and the coupling element and axially displaceable on a drive section of the drive shaft, wherein, to form a threaded connection, the coupling element has an internal thread and the nut element has a corresponding external thread or the nut element has an internal thread and the drive section has a corresponding external thread.
  • Electric motor units preferably provide a rotating drive on their output side, in addition to alternative designs, for example as linear motors.
  • the axial movement of the piston element is a linear movement.
  • a threaded connection makes it particularly easy to convert a rotational movement into a linear movement, and high forces can also be transmitted.
  • a drive shaft driven by the motor unit provides the rotating input movement for the threaded connection
  • the coupling element connected to the piston element provides the linear output movement to be transmitted to the piston element.
  • a nut element is provided between the drive shaft and the coupling element.
  • the threaded connection can be provided between the coupling element and the nut element or between the nut element and the drive section of the drive shaft.
  • the nut element is mounted on the drive section in a rotationally fixed manner and is axially fixed at least against the deflection direction, so that when the drive section rotates, the nut element also rotates and pulls the coupling element in the deflection direction via the threaded connection.
  • the nut element is mounted on the coupling element in a rotationally fixed manner and is axially fixed at least in the deflection direction, so that when the drive section rotates, in which the nut element moves along the drive section in the deflection direction via the threaded connection, the coupling element is pulled in the deflection direction with the nut element.
  • the door drive according to the invention is designed in such a way that the pulling mechanism has a holding device for fixing the nut element to the drive section in a first holding position and a second holding position at least against the pretensioning direction of rotation and at least against the deflection direction axially, wherein when the piston element assumes its initial position, the nut element can be fixed in the first holding position by the holding device, wherein when the nut element is fixed in the first holding position is, the actuation of the electric motor unit in the pre-tensioning direction of rotation pulls the piston element into the locking position and then the actuating unit locks the closing piston in the locking position, and wherein when the motor unit is not actuated and after a movement of the piston element into the locking position by a manual opening movement, the nut element can be fixed in the second holding position by the holding device, wherein, when the nut element is fixed in the second holding position, the actuating unit locks the piston element in the locking position.
  • the holding device thus makes it particularly easy to fix the nut element to the drive section in two holding positions, which are spaced apart from one another in particular axially along the deflection direction and wherein the first holding position is preferably arranged closer to the piston element along the deflection direction.
  • the first holding position is preferably positioned on the drive section in such a way that the nut element can be fixed in a position that corresponds to a position of the piston element when the door is closed.
  • the second holding position in turn is preferably positioned on the drive section in such a way that the nut element can be fixed in a position that corresponds to a position of the piston element when the door is open, in particular fully open.
  • the holding device has a first holding element and a second holding element, wherein the two holding elements are arranged or mounted at a distance from one another on the drive section along the deflection direction and are each movable between an engagement position in which the nut element is in the first holding position or the second holding position on the drive section is fixable, and a release position in which the fixation of the nut element is released from the drive section.
  • the holding device has a first holding element and a second holding element, wherein the two holding elements are arranged or mounted at a distance from one another on the drive section along the deflection direction and are each movable between an engagement position in which the nut element is in the first holding position or the second holding position on the drive section is fixable, and a release position in which the fixation of the nut element is released from the drive section.
  • Both the fixing of the nut element in one of the two holding positions and the subsequent release can be made particularly safe in this way and, moreover, can be carried out in a particularly simple and controlled manner.
  • the functional reliability of the door drive according to the invention in particular when used on a fire door, can thereby be increased, in particular ensured or guaranteed.
  • the door drive according to the invention can preferably be designed such that, when the first holding element assumes its engagement position, the nut element can be fixed in the first holding position by positive engagement of the first holding element in an engagement receptacle of the nut element, wherein, when the second holding element assumes its engagement position, the nut element can be fixed in the second holding position by positive engagement of the second holding element in the engagement receptacle of the nut element.
  • the engagement receptacle of the nut element and the first or second holding element have corresponding surfaces. The positions of the holding elements on the drive section of the drive shaft are thus selected such that they correspond to the first or second holding position of the nut element.
  • the engagement receptacle of the nut element enables, in particular, both the first holding element and the second holding element to engage in it in a positive manner.
  • the engagement receptacle can be designed as a one-piece receptacle with a corresponding size, alternatively also as a multi-piece Receiving at the appropriate locations on the nut element.
  • the arrangement of the holding elements according to the invention is particularly advantageous in that when the piston element and the coupling element connected to it move axially, the nut element also moves axially, but the drive shaft, and thus the holding elements arranged and mounted on it, do not.
  • a spatial assignment of the first holding element for interaction with the nut element in its first holding position and at the same time of the second holding element for interaction with the nut element in its second holding position can be made particularly easy and also ensured in this way.
  • the first holding element can particularly preferably be provided for holding or locking the piston element after it has been pulled into its locking position by the actuating unit, while the second holding element, in contrast, can be provided accordingly after the piston element has been moved into the locking position by a manual door opening.
  • the above-described configuration makes it possible to lock the piston element in its locking position, regardless of the manner in which the piston element has been brought into its locking position.
  • the door drive according to the invention can particularly preferably be further developed in such a way that the two holding elements are designed as pawls that can be set up in a switchable manner or as ball locking pins that can be extended in a switchable manner.
  • the two holding elements are designed as pawls that can be set up in a switchable manner or as ball locking pins that can be extended in a switchable manner.
  • This list is not exhaustive, so that other designs of switchable holding elements are also possible.
  • the appropriate holding elements can be selected for different door drives with different requirements.
  • the first holding element and the second holding element are arranged on the drive section without any circumferential offset from one another.
  • the size of this engagement receptacle can even be minimized, since the two holding elements are arranged without circumferential offset and thus axially aligned on the drive section of the drive shaft. The structural stability of the nut element can thus be increased, and in particular secured.
  • the door drive according to the invention can also be characterized in that the holding device has a lifting actuator, preferably an electromagnetic lifting actuator, and a lifting rod which is mounted by the drive shaft, in particular the drive section, and can be displaced along the deflection direction by the lifting actuator, wherein the two holding elements can preferably be switched jointly between their engagement position and their release position by the lifting rod.
  • a lifting actuator preferably an electromagnetic lifting actuator
  • a lifting rod which is mounted by the drive shaft, in particular the drive section, and can be displaced along the deflection direction by the lifting actuator, wherein the two holding elements can preferably be switched jointly between their engagement position and their release position by the lifting rod.
  • the two holding elements are switched by a single, common lifting actuator.
  • the lifting actuator can be designed as an electromagnetic lifting actuator with a correspondingly switchable electromagnet.
  • the two holding elements are switched via a lifting rod, whereby the two holding elements can preferably be switched together and thus simultaneously.
  • a separate actuator for each of the two holding elements is therefore not necessary and can therefore be avoided.
  • the lifting rod is slidably mounted on the drive shaft.
  • the lifting rod makes it possible for the actual lifting actuator to be arranged away from the holding elements. A particularly compact design of the actuating unit and thus of the entire door drive according to the invention can thus be made possible.
  • the door drive according to the invention can preferably be further developed in such a way that the lifting actuator has an adjusting spring that acts on the lifting rod along the deflection direction, wherein the adjusting spring exerts a force on the two holding elements via the lifting rod in the direction of their respective release position.
  • the lifting actuator without activation, the lifting actuator, and thus the entire actuating unit, is held by the adjusting spring in a state in which the holding elements are arranged in their release position and thus a fixation of the nut element in one of the holding positions is released.
  • the two holding elements are spring-loaded on one side in the direction of their engagement position, whereby the holding elements, in particular when the motor unit is not actuated and after a manual opening movement of the piston element into the locking position, can be moved reversibly by the nut element from the respective engagement position towards their release position.
  • the nut element moves in the deflection direction and overruns the axial position of one of the holding elements. This can be the second holding element, for example, in a manual opening process.
  • Another example is the situation after a motor pre-tensioning and subsequent release of the piston element, in which the nut element at the end of the movement of the piston element into its starting position, it is located axially between the piston element and the first holding element.
  • the holding elements With designing the holding elements with a spring-loaded preload in the direction of their engagement position, it is possible for the nut element to simply move over the position of the respective holding element during its movement in the deflection direction along the drive shaft, thereby pushing the holding element from the engagement position into the release position. Afterwards, i.e. when the nut element has passed the position of the holding element, the holding element automatically returns to its engagement position and full functionality, in particular with regard to a possible engagement of the holding element in the engagement receptacle of the nut element, is restored.
  • the door drive according to the invention can also be designed in such a way that, for resetting the actuating unit, the drive section extends so far beyond the first holding element in the opposite direction to the deflection direction that, after the nut element is released from the first holding position and the piston element then moves in the opposite direction to the deflection direction into the starting position, the nut element continues to be mounted on the drive section in a rotationally fixed and axially displaceable manner.
  • the nut element is located axially between the piston element and the first holding element at the end of the piston element's movement in its starting position.
  • the drive section has an axially constant, non-circular cross-section, wherein a central opening of the nut element is adapted to the cross-section of the drive shaft and the nut element is thus mounted on the drive shaft in a rotationally fixed and axially displaceable manner. Due to the non-circular cross-section of the drive section and the central opening of the nut element adapted to it, the nut element is supported in a form-fitting manner on the drive section when the drive shaft rotates and thus follows the rotation of the drive shaft. Since the cross-section of the drive section is also axially constant, an axial displacement of the nut element on the drive section is nevertheless possible as an alternative or at the same time as the rotary drive.
  • the two holding elements are designed as holding projections, in particular each with a radial stop surface and an axial stop surface, which are provided radially projecting on the drive section and are arranged axially and circumferentially offset from one another on the drive section.
  • the holding elements of the holding device are fixedly arranged on the drive section.
  • the two Retaining projections as such are preferably designed identically.
  • the retaining projections are provided for a positive engagement in the engagement receptacle of the nut element.
  • the axial offset of the two retaining projections is preferably selected such that the first retaining projection, which is positioned closer to the piston element on the drive section and thus corresponds to the first retaining element, is assigned to the first holding position of the nut element, and correspondingly the second retaining projection, which is positioned further away from the piston element on the drive section and thus corresponds to the second retaining element, is assigned to the second holding position of the nut element.
  • the retaining elements are formed by retaining projections, i.e. by areas in which elements protrude radially beyond the otherwise existing cross section of the drive section. The arrangement or orientation of these retaining projections with respect to the drive section is thus fixed and cannot be actively switched. A complex switching mechanism for switching the retaining elements between their engagement position and their release position can therefore be dispensed with.
  • the holding projections can be switched between the release position and the engagement position by rotating the drive shaft.
  • active switching between the two positions of the holding elements can be achieved, even without the two holding projections that form the holding elements themselves being designed to be switchable.
  • the drive shaft can be set in rotation directly by the electric motor unit, this switching between the positions of the holding elements can be made possible completely without additional actuators.
  • the door drive according to the invention can be designed such that the retaining projections move from the release position into the engagement position when the drive shaft rotates in the pre-tensioning direction and Rotation of the drive shaft against the preload direction of rotation from the engaged position to the release position.
  • the piston element can be pulled from the starting position to its locking position by rotating the drive shaft in the preload direction of rotation.
  • rotating the drive shaft in the preload direction of rotation also causes the holding projections to be moved from the release position to the engaged position, in which the nut element can be fixed in one of its holding positions, the fixing of the nut element, in particular in the first holding position, which is necessary for pulling the piston element, can thus be automatically enabled and particularly easily ensured before the start of pulling.
  • rotating the drive section in the preload direction of rotation also causes the corresponding holding projection to engage in the engagement receptacle of the nut element and thus also locks the piston element in its locking position.
  • the engagement receptacle of the nut element has a stop section for the holding projections, in particular with a radial stop area and an axial stop area, wherein the stop section can be contacted radially and axially in a form-fitting manner in its engagement position by the holding projection forming the first holding element and the nut element can thereby be fixed in its first holding position, and wherein the stop section can be contacted radially and axially in a form-fitting manner in its engagement position by the holding projection forming the second holding element and the nut element can thereby be fixed in its second holding position.
  • the stop section of the engagement receptacle can in particular enable both an axial and a radial abutment of the respective holding projection in the engagement receptacle.
  • the radial abutment causes the nut element to be driven along when the drive shaft rotates, in particular in the preloading direction of rotation, the axial abutment causes an axial fixing of the nut element on the drive section, in particular acting against the deflection direction.
  • the nut element in a first holding section in its engagement position, can be driven by the drive shaft for rotation in the pre-tensioning direction, whereby at the same time an axial movement of the nut element is prevented and thus the coupling element and the piston element connected to it are automatically pulled in the deflection direction via the threaded connection and can then be locked and held in its locking position.
  • the locking of the piston element in its locking position can also be made possible after a deflection by a manual opening movement of the door by the axial striking of the second holding projection on the axial stop area of the engagement receptacle of the nut element.
  • the door drive according to the invention can also be provided with the retaining projections being arranged on the drive section so that they are offset from one another on the circumference in such a way that, when the drive shaft is in a rotational position in which the retaining projection forming the first retaining element is arranged in its engagement position in a form-fitting manner on the stop section, the retaining projection forming the second retaining element is in its release position, and vice versa.
  • the circumferential offset can in particular ensure that after a release from the second holding position, i.e.
  • the nut element is automatically arranged in the first holding position with the first retaining projection in its engagement position after the piston element has been moved back to its starting position. A complex realignment of the actuating unit can be avoided in this way. Conversely, when the nut element is in its first holding position and the first retaining projection is in its engagement position, the nut element can be lifted off the first retaining projection in the deflection direction without the second The retaining projection blocks this movement of the nut element along the drive section. Manual opening of the door beyond the locking position of the piston element and/or manual opening of the door, which is faster than the motor-driven opening process, is also possible without being hindered by the retaining projections.
  • the door drive according to the invention can be further developed in such a way that the axial stop area of the stop section and the axial stop surface of the holding projection that forms the first holding element and the axial stop surface of the holding projection that forms the second holding element are aligned perpendicular to the deflection direction.
  • the positive engagement of the axial stop area on one of the two axial stop surfaces causes, among other things, the piston element to be locked in its locking position and is in this case the main point of application of the force stored in the closing spring.
  • the axial stop region of the stop section and the axial stop surface of the retaining projection, which forms the first retaining element, and the axial stop surface of the retaining projection, which forms the second retaining element are inclined, in particular at an angle between 30° and less than 90°, preferably between 60° and 85°, to the are aligned in the direction of deflection.
  • the door drive according to the invention can further comprise that for resetting the actuating unit, the holding projection forming the first holding element is extended axially against the deflection direction to such an extent that after the nut element is released from the first holding position and the subsequent movement of the piston element against the deflection direction into the starting position, the nut element at least at a Rotation of the drive shaft in the pre-tensioning direction is mounted on the drive section in a rotationally fixed and axially displaceable manner.
  • the nut element is also located axially between the piston element and the first holding element after motor pre-tensioning and subsequent release of the piston element at the end of the movement of the piston element in its starting position.
  • the first holding element i.e. the first holding projection
  • the nut element By axially displaceable and at the same time rotationally fixed mounting of the nut element on the drive section, the first holding element, i.e. the first holding projection, is extended for this mounting accordingly against the deflection direction, it can be made possible that when the drive section rotates, the nut element also rotates and is displaced by the threaded connection in the deflection direction along the drive section. In this embodiment, too, this makes it particularly easy to reset the actuating unit to its basic state, for which the nut element is in particular brought back into its first holding position.
  • the door drive according to the invention can be characterized in that the freewheel has a freewheel stop arranged on a closer shaft, in particular on a freewheel cam, and a freewheel pin arranged on a closer lever and resting laterally on the freewheel stop in the closed position of the door and when the motor unit is not actuated, wherein the freewheel stop is carried along by the freewheel pin during a manual opening movement and lifts off the freewheel pin when the piston element is pulled into its locking position by the actuating unit, or vice versa.
  • Both designs of the freewheel make it possible for the pretensioning of the closer spring caused by the electrical actuating unit to take place completely decoupled from the door and thus without the door moving.
  • the element of the freewheel arranged on the closer shaft lifts off the element of the freewheel arranged on the closer lever during a motor-driven movement of the piston element into its locking position.
  • the freewheel can also optionally provide an easily detachable mechanical coupling of the rotation of the closing shaft with the movement of the closing lever, for example, by means of a locking lug that can be easily pushed over.
  • a completely automatic opening of the door can be made possible, for example for young, old and/or physically disabled people or even for autonomous vehicles. Due to the easy detachability mentioned above, the mechanical coupling can be released at any time during or after the opening process without great effort and the door can be put into simple freewheel mode.
  • the door drive according to the invention can also be designed such that, when the door drive is in the assembled state, the locking position of the piston element corresponds to an opening angle of the door between 0° and 180°, in particular between 75° and 105°, preferably 90°.
  • an opening angle of the door between 0° and 180°, in particular between 75° and 105°, preferably 90°.
  • the door drive according to the invention can be designed so that the triggering situation occurs in the event of a power failure and/or when triggering signals are present, in particular in an emergency situation, in particular a fire.
  • Triggering signals can also be generated, for example, by sensors built into the door drive according to the invention, for example smoke sensors, heat sensors or similar.
  • sensors built into the door drive according to the invention for example smoke sensors, heat sensors or similar.
  • external sensors and/or control systems can also be used as a source of triggering signals. Manual triggering is possible at any time, regardless of this.
  • the actuating unit comprises control and/or regulating electronics for receiving trigger signals and, based on these, for controlling and/or regulating the electrical actuating unit.
  • the control and/or regulating electronics are integrated into the door drive. The actuating and/or regulated performance of the function of the actuating unit can thus be carried out directly by the door drive according to the invention.
  • External control devices that are spatially separated from the door drive can thus be avoided, whereby interruptions in communication connections, which can in particular be wired and/or wireless, between the door drive according to the invention and external control devices, which cannot be ruled out in the event of a fire, for example, can be avoided as a source of error.
  • the door drive according to the invention can be designed in such a way that the actuating unit comprises an electrical energy storage device for at least one release of the piston element for a movement against the deflection direction into the starting position when the triggering situation occurs.
  • the actuating unit comprises an electrical energy storage device for at least one release of the piston element for a movement against the deflection direction into the starting position when the triggering situation occurs.
  • closing or keeping the door closed can thus be ensured, in particular in embodiments of the door drive which require an active release of the closing movement, for example by using a type of ballpoint pen mechanism.
  • the door drive according to the invention can particularly preferably be further developed in such a way that the electrical energy storage device holds sufficient electrical energy to enable the piston element to be moved into its locking position against the force of the closing spring at least once, in addition to releasing the piston element at least once.
  • This design makes it possible, for example, when using a door drive according to the invention on a fire door, to enable the fire door to be opened again at least once even after it has been triggered in the event of a fire, which leads to the fire door being closed, in order to open up an escape route for young, old and/or physically handicapped people, for example.
  • the door drive according to the invention can be characterized in that the electrical actuating unit is arranged at least partially, preferably completely, in the deflection direction of the piston element in series with the piston element and/or the closing spring.
  • an arrangement of the various elements of the door drive according to the invention in series along the deflection direction means that these corresponding elements of the door drive, in particular the entire electrical actuating unit or at least the pulling mechanism, as well as the piston element and/or the closing spring, are arranged next to one another along the deflection direction, whereby the individual elements can also overlap one another.
  • the property of the actuating unit to be able to pull and also hold the piston element of the door drive according to the invention in the deflection direction against the force of the closing spring can be implemented in a particularly simple and compact manner in this way.
  • the door drive according to the invention can be characterized in that the closing spring is designed as a helical spring and at least parts of the tension mechanism are arranged inside the closing spring.
  • Helical springs represent particularly preferred designs of closing springs because they have a hollow space inside them. By arranging at least parts of the tension mechanism in this hollow space, a particularly compact structure of the entire door drive according to the invention can be made possible.
  • Fig. 1 shows a door drive 200 according to the invention in an external view.
  • the housing 110 of the door drive 200 is enclosed by a cover.
  • the locking shaft 112 is in turn at least temporarily connected to a locking lever 114 in order to enable the drive mechanism 130 to be coupled to a door.
  • the door drive 200 according to the invention can be mounted on a door leaf or a door lintel, as well as on the hinge side or opposite the hinge side, as required.
  • a freewheel 116 is formed between the closer shaft 112 and the closer lever 114 in the door drive 200 according to the invention.
  • the freewheel 116 can, for example, comprise a freewheel stop 118 formed as a freewheel cam 120, which is connected to the closer shaft 112 in a rotationally fixed manner, and a freewheel pin 122, which is arranged on the closer lever 114. If required, a reverse arrangement is also conceivable, i.e. the freewheel pin 122 on the closer shaft 112 and the freewheel stop 118 on the closer lever 114.
  • the freewheel 116 can make it possible for the door to move independently of a movement of the closer shaft 112 and thus without being acted upon by a closer spring 134 of the drive mechanism 130 (cf. again for example Fig. 2 ) can take place.
  • a possible embodiment of a door drive 200 according to the invention is shown in a sectional view in the plane spanned by a deflection direction 136 of a piston element 132 and the closer shaft 112.
  • the sectional view also shows the drive mechanism 130 in particular.
  • the closer shaft 112 passes through the piston element 132 and is connected to it in a drive-effective manner, so that a rotation of the closer shaft 112 leads to an axial displacement of the piston element 132 along the deflection direction 136
  • the closing spring 134 is arranged on the piston element 132 in the deflection direction 136, which is compressed when the piston element 132 is axially displaced, whereby mechanical energy can be stored. This stored mechanical energy is used to push the piston element 132 back into its initial position and thereby via the closing shaft 112 and the, for example, in Fig. 1 shown closing lever 114 to close the door coupled to the door drive 200 according to the invention.
  • the door drive 200 in particular the drive mechanism 130, has, in addition to the usual components of purely mechanical door closers described above, an actuating unit 10 with a pulling mechanism 20, which is also shown in the sectional view of the Fig. 2 are visible.
  • the illustrated actuating unit 10 has an electric motor unit 12 for driving the pulling mechanism 20.
  • the actuating unit 10 can also have an electromagnet unit for driving or applying pressure to the pulling mechanism 20.
  • the motor unit 12 has in particular a control and/or regulating electronics 14, which is designed and provided in particular for receiving trigger signals when a trigger situation occurs and based on this for controlling and/or controlled operation of the electrical actuating unit 10.
  • the control and/or regulating electronics 14 can also preferably operate the actuating unit 10 in a controlled manner during the rest of the operation of the door drive 200 according to the invention, for example for opening the door by pulling the piston element 132 into its locking position.
  • the closing spring 134 of the door drive 200 can be designed as a helical spring, whereby at least parts of the pulling mechanism 20, which, like the motor unit 12 of the actuating unit 10, is arranged in series along the deflection direction 136 with the piston element 132, can be arranged inside the closing spring 134.
  • a particularly compact design of the door drive 200 according to the invention is thus possible.
  • the pulling mechanism 20 which is arranged between the motor unit 12 and the piston element 132, a rotary movement of the electric motor unit 12 in a pre-tensioning direction of rotation can be converted into a pulled movement of the piston element 132 in the deflection direction 136.
  • the pulling mechanism 20 can be switched between a state in which the electric motor unit 12 and the piston element 132 are coupled and a state in which the electric motor unit 12 and the piston element 132 are uncoupled.
  • the piston element 132 can be moved by the actuating unit 10 from an initial position, as shown in Fig. 2 shown, into a locking position and then locked in this locking position.
  • the closing spring 134 can be pre-tensioned by a motor. After the pre-tensioning process, the Fig. 1 The freewheel 116 shown in FIG. 1 enables a door coupled to the door drive 200 to be operated without being subjected to the force of the closing spring 134.
  • the closing spring 134 can also be compressed by a manually triggered opening movement when a user passes through the door, which also leads to a displacement of the piston element 132 along the deflection direction 136. In this case, the actuating unit 10 also ensures that the piston element 132 is locked in its locking position, in particular as described below via a lifting actuator 90.
  • the closing spring 134 is pre-tensioned and mechanical energy is stored in the closing spring 134.
  • a triggering situation for example a fire or a power failure
  • the control and/or regulating electronics 14 of the actuating unit 10 can receive trigger signals and, based on them, control the pull mechanism 20 in order to switch the pull mechanism 20 to the uncoupling state, for example as described below by deactivating the preferably magnetic lifting actuator 90, and thus releasing the locking of the piston element 132.
  • the piston element 132 is thereby released for movement against the deflection direction 136 into the starting position. In particular, in this way the door is closed by means of the force of the closing spring 134 or held in a closed position.
  • an electrical energy storage device 16 for example a battery, an accumulator or a capacitor, can also be provided as part of the control and/or regulating electronics 14 or in addition to this in order to ensure that the locking of the piston element 132 is released at least once.
  • This is particularly necessary in embodiments of the door drive 200 according to the invention in which simply switching off a component does not automatically lead to the release of the piston element 132, see Fig. 13 , 14 and the associated description.
  • these features and properties enable the use of a door drive 200 according to the invention in safety-relevant areas, for example on a fire door.
  • the elements of the door drive 200 according to the invention described above are essentially present in all embodiments of the door drive 200 according to the invention. The above description is therefore to be understood as a general description of the door drive 200 according to the invention.
  • the individual embodiments of the door drive 200 according to the invention differ in particular in the embodiment of the respective actuating unit 10 used, in particular its pulling mechanism 20.
  • the Fig. 2 The tension mechanism 20 shown is described below with particular reference to Fig. 3 to 5 described in detail.
  • the pulling mechanism 20 of the actuating unit 10 shown has, in addition to the electric motor unit 12 and its control and/or regulating electronics 14, a drive shaft 30 which can be driven by the motor unit 12 in a rotational manner, in particular in or against a pre-tensioning direction of rotation.
  • a nut element 50 is mounted on a drive section 32 of the drive shaft 30 in a rotationally fixed and axially displaceable manner, with the drive shaft 30 passing through a central opening 60 of the nut element 50.
  • the drive section 32 has an axially constant and non-circular cross-section 34, with the central opening 60 of the nut element 50 being adapted to the cross-section 34 of the drive shaft 30. This leads to the rotationally fixed and simultaneously axially displaceable mounting of the nut element 50 on the drive section 32 as already mentioned above.
  • a coupling element 40 which is attached to the piston element 132 (cf. Fig. 2 ) and is preferably formed integrally or even in one piece with it, represents a further element of the pulling mechanism 20.
  • the nut element 50 is equipped with an external thread 24, the coupling element 40 with a corresponding internal thread 22.
  • the threaded connection formed thereby enables a conversion of the rotary movement of the drive shaft 30 into an axial movement of the coupling element 40 and thus of the piston element 132 along the deflection direction 136.
  • the pull mechanism 20 shown has a holding device 70 for fixing the nut element 50 radially on both sides and axially on one side against the deflection direction 136 on the drive section 32 of the drive shaft 30.
  • the holding device 70 has two holding elements 72, 74, which in the embodiment shown are designed as switchable pawls 80.
  • the two holding elements 72, 74 are axially spaced apart and arranged on the drive section 32 without any circumferential offset from one another.
  • the pawls 80 can be switched between an engagement position and a release position, wherein in their respective engagement position they are designed to engage in an engagement receptacle 62 of the nut element 50.
  • the traction mechanism 20 comprises a lifting actuator 90, which is designed as an electromagnet and is arranged so as to encompass the drive shaft 30 close to the motor unit 12.
  • the lifting actuator 90 drives a lifting rod 92, the position of which in turn switches the pawls 80 between their engagement position and their release position.
  • an adjusting spring 94 (cf. Fig. 2 or Fig. 6 ) which preloads the lifting rod 92 in such a way that it pushes the pawls 80 into the respective release position without being acted upon by the lifting actuator 90.
  • the pawls 80 are spring-loaded on one side in the direction of their engagement position so that they can be pressed from the engagement position into the release position and, provided that the lifting rod 92 is acted upon by the lifting actuator 90, return to the engagement position once the pressing force has ceased.
  • the function of the pulling mechanism 20 or its holding device 70, in particular a pre-tensioning process of the closing spring 134, is described below in particular with reference to the Fig. 4 , 5 described, where Fig. 4 a pre-tensioning process during a manual opening of the door and Fig. 5 show a pre-tensioning process driven by the motor unit 12. Such a motor-driven pre-tensioning process can be accompanied by a simultaneous opening movement of the door.
  • the Fig. 4 , 5 each show detailed views of the pull mechanism 20 in the interior of the housing 110 of the door drive 200 according to the invention (cf. Fig. 2 ) in different switching states.
  • the coupling element 40 is arranged inside the closing spring 134, which is designed as a spiral spring.
  • the nut element 50 engages with its external thread 24 in the corresponding internal thread 22 of the coupling element 40.
  • the drive section 32 of the drive shaft 30 is also arranged inside the closing spring 134.
  • the nut element 50 is mounted on the drive section 32 so that it can be moved axially.
  • the lifting rod 92 which is in the drive shaft 30, in particular in the drive section 32, is arranged so as to be displaceable.
  • a lifting actuator 90 and an adjusting spring 94 can be provided (see, for example, Fig. 2 , 3 and 6).
  • the adjusting spring 94 acts on the lifting rod 92 in such a way that it is only in a position that allows the pawls 80 to be adjusted to their engaged position when the lifting actuator 90 is activated at the same time (see Figures A, B, C of the Fig. 4 and Figures A, B, E of the Fig. 5 ), whereby the pawls 80 are preferably spring-loaded in the direction of their respective engagement position.
  • the lifting actuator 90 is deactivated (see Figures D, E of the Fig. 4 and Figures C, D of the Fig.
  • the adjusting spring 94 drives the lifting rod 92 into a position in which the pawls 80 are inevitably pressed into their respective release position, whereby the fixing of the nut element 50 is cancelled. This enables or ensures a closing movement of the door driven by the closing spring 134, in particular in the event of a power failure.
  • Figure A of the Fig. 4 shows the pulling mechanism 20 in a basic state.
  • the coupling element 40 and thus also the piston element 132 (not shown) are in the starting position in which the closing spring 134 is maximally relaxed.
  • Both pawls 80 are in their engagement position, whereby the pawl 80 acting as the first holding element 72 engages in the engagement receptacle 62 of the nut element 50 and in this way fixes the nut element 50 in its first holding position 52, at least when the coupling element 40 begins to be pulled by the pulling mechanism 20.
  • the first holding element 70 also engage in the engagement receptacle 62 of the nut element 50 in such a way that a small distance remains between these components.
  • the nut element 50 is fixed to the drive section 32 in a rotationally fixed manner and axially against the deflection direction 136, at least after the start of the rotation of the drive shaft 30, whereby a rotation of the drive shaft 30 in the preloading direction would be transferred to the nut element 50. It should be noted here that the actual fixing of the nut element 50 in its first holding position 52 only begins when the movement begins.
  • a pre-tensioning process is shown during a manual opening of the door. This is already explained in Figure B the Fig. 4 visible.
  • the piston element 132 and thus the coupling element 40 are displaced in the deflection direction 136 by the opening movement of the door.
  • the nut element 50 coupled to the coupling element 40 via the threaded connection, lifts off the first holding element 72. Due to the spring-loaded mounting of the holding elements 72, 74 described above, the nut element 50 can press the second holding element 74 into its release position and thus move past the axial position of the second holding element 74 when it is driven over.
  • Figure C of the Fig. 4 shows the state of the door drive 200 after completion of the manual pre-tensioning process.
  • the piston element 132 has reached its locking position.
  • the nut element 50 has moved completely over the position of the second holding element 74, whereby this could move back into its engaged position.
  • the pawl 80 which forms the second holding element 74, engages in the engagement receptacle 62 of the nut element 50 and in this way fixes the nut element 50 in its second holding position 54.
  • the piston element 132 is thereby locked in its locking position.
  • the closing spring 134 is thus held in the pre-tensioned state and mechanical energy is stored for a closing process of the door.
  • this holding in the pre-tensioned state also requires an active pulling of the lifting rod 92 by the lifting actuator 90 against the force of the adjusting spring 94.
  • FIG. 5 In contrast to the Fig. 4 are in Fig. 5 different stages of a motor-driven pre-tensioning process of the closing spring 134 are shown.
  • Figure A of the Fig. 5 shows again a basic state of the tension mechanism 20, which corresponds to that in Figure A of the Fig. 4 shown ground state. To avoid repetition, reference is made to the corresponding description above.
  • Figure C of the Fig. 5 shows the state of the pulling mechanism 20 immediately after a triggering situation has occurred.
  • the lifting rod 92 is in the same position as in Figures A and B of the Fig. 5 is displaced.
  • the two pawls 80 are switched together from their respective engagement position to their respective release position and the fixation of the nut element 50 in its first holding position 52 is thereby removed.
  • a movement of the piston element 132 driven by the closing spring 134 against the deflection direction 136 is not only made possible by this, but preferably takes place in particular inevitably.
  • Figure E of the Fig. 5 now shows the nut element 50 shortly before completion of the resetting or resetting with the lifting rod 92 pushed back.
  • the nut element 50 is shown just as it is moving over the position of the first holding element 72.
  • the spring-loaded mounting of the first holding element 72 enables the nut element 50 to easily move over the first holding element 72, whereby the first holding element 72 is pressed into its release position by the nut element 50.
  • the locking pawl 80 which forms the first holding element 72, returns to its engaged position due to the spring load, whereby the pulling mechanism 20 again assumes the position shown in Figure A of the Fig. 5 shown basic state.
  • the lifting rod 92 must be actively pulled by the lifting actuator 90 against the force of the adjusting spring 94.
  • FIG. 6 to 8 A further embodiment of the actuator unit 10 of the door drive 200 according to the invention is shown.
  • Fig. 2 to 5 The embodiment shown differs from that of the Fig. 6 to 8 in particular in that the retaining elements 72, 74 installed in the respective retaining device 70 are not designed as pawls 80, but as ball locking pins 82 or at least in the manner of a ball locking pin 82.
  • the other elements of the Fig. 6 to 8 The actuator unit 10 shown, in particular the coupling element 40, the nut element 50, the drive shaft 30, the lifting actuator 90 and the motor unit 12, are similar or even identical to the corresponding elements of the Fig. 2 to 5 shown actuating unit 10.
  • the lifting actuator 90 (cf. Fig. 3 ) is not shown. Also in the Fig. 6 to 8 However, in the embodiment shown, this is present and is also arranged on the motor unit 12, encompassing the drive shaft 30. The lack of representation of the lifting actuator 90 enables in particular a representation of the adjusting spring 94 arranged inside the lifting actuator 90. Also in the embodiment shown in the Fig. 6 to 8 In the illustrated embodiment of the actuating unit 10 of the door drive 200 according to the invention, this actuating spring 94 acts on the lifting rod 92 in such a way that, without active loading by the lifting actuator 90, the holding elements 72, 74 are subjected to a force in the direction of their respective release position.
  • the two holding elements 72, 74 of the holding device 70 are designed as ball locking pins 82.
  • the lifting rod 92 has in particular correspondingly shaped receptacles with run-on slopes in order to switch the ball locking pins 82 from their release position, in which they are arranged essentially in the interior of the drive shaft 30, and their engagement position, in which they protrude beyond the cross section 34 of the drive shaft 30 and can thus engage in the engagement receptacle 62 on the central opening 60 of the nut element 50.
  • FIG. 4 also shows the Fig. 7 various detailed views of the pulling mechanism 20 during a manually driven pre-tensioning process of the closing spring 134.
  • Figure A again shows a basic state in which the coupling element 40 and the piston element 132 arranged thereon (not shown) are arranged in an initial position.
  • the holding elements 72, 74 designed as pawls 80 in Figure A are in Fig. 7 the holding elements 72, 74 designed as ball locking pins 82 are shown in their release position, so that the nut element 50 is arranged in its first holding position 52, but is not fixed in this.
  • Figures B and C of the Fig. 7 show a manual pre-tensioning process of the closing spring 134 (see also Figures B, C of the Fig. 4 and the associated description).
  • the piston element 132 and thus the coupling element 40 is moved in the deflection direction by a manual opening movement of the door ( Figure B the Fig. 7 ).
  • the nut element 50 is fixed in its second holding position 54 on the drive section 32 by actively switching the second holding element 74 designed as a ball locking pin 82 into its engagement position, caused by a deflection, in particular active deflection caused by a lifting actuator 90, of the lifting rod 92, in particular by a positive engagement of the ball locking pin 82 in the engagement receptacle 62 of the nut element 50.
  • the piston element 132 is thereby locked in its locking position and the closing spring 134 is pre-tensioned.
  • FIG. 7 shows the state of the pulling mechanism 20 directly after a triggering situation occurs.
  • the lifting rod 92 is displaced in comparison to Figure C, whereby the two holding elements 72, 74 are switched together from their respective engagement position to their respective release position and the fixation of the nut element 50 in its second holding position 54 is thereby removed.
  • this leads to a movement of the piston element 132 driven by the closing spring 134 against the deflection direction 136.
  • the door equipped with the door drive 200 according to the invention is closed or held in a closed state.
  • FIG. 5 also shows Fig. 8 different stages of a pre-tensioning process of the closing spring 134, which is motor-driven by the motor unit 12.
  • the first holding element 72 designed as a ball locking pin 82 is brought into its engaged position in which it fixes the nut element 50 in its first holding position 52 axially and rotationally fixed to the drive section 32 of the drive shaft 30.
  • FIG. D of the Fig. 8 A state of the traction mechanism 20 directly after the occurrence of a triggering situation is shown in Figure D of the Fig. 8 Analogous to a release situation after a manual pre-tensioning process, the lifting rod 92 is in comparison to Figure C of the Fig. 8 displaced, whereby the ball locking pins 82 are switched to their respective release position. As a result, the fixation of the nut element 50 in its first holding position 52 is thus canceled. The piston element 132 is thereby released for a movement driven by the closing spring 134 against the deflection direction 136.
  • the nut element 50 after the movement of the piston element 132 into its initial position, the nut element 50 must be reset from an end position which lies between the first holding element 72 and the piston element 132 into its first holding position 52.
  • the drive section 32 again moves correspondingly far against the deflection direction 136 in the direction of the piston element 132, so that the nut element 50 is continuously supported by the drive section 32, as can be seen from Figure E of the Fig. 8 A rotation of the drive shaft 30 against the pre-tensioning direction of rotation thereby moves the nut element 50, using the threaded connection to the coupling element 40, along the deflection direction 136 into its first holding position 52.
  • the pulling mechanism 20 After the nut element 50 has reached the first holding position 52, the pulling mechanism 20 again takes the position shown in Figure A of the Fig. 8 shown ground state.
  • the holding elements 72, 74 are designed as holding projections 84, which together with a stop section 64, which as part of the engagement receptacle 62 delimits a section of the central opening 60 of the nut element 50, which interact according to a so-called keyhole principle.
  • the holding projections 84 are each designed with a radial stop surface 86 and an axial stop surface 88 and protrude radially from the drive section 32 of the drive shaft 30, wherein they are arranged in particular axially and circumferentially offset from one another on the drive section 32.
  • the retaining projections 84 can be switched from the release position to the engagement position by rotating the drive shaft 30 in the pre-tensioning direction of rotation and vice versa by rotating the drive shaft 30 against the pre-tensioning direction of rotation from their respective engagement position to the release position.
  • a lifting actuator is therefore not necessary in this embodiment.
  • the stop section 64 of the nut element 50 also has in particular a radial stop area 66 and an axial stop area 68, which are designed for a positive locking Contact with the respective radial stop surface 86 or the axial stop surface 88 of the retaining projections 84 are provided (see in particular Fig. 10 ).
  • the radial abutment in particular of the radial abutment surface 88 of the holding projection 84 corresponding to the first holding element 72, causes the nut element 50 to be carried along in its first holding position 52 when the drive shaft 30 rotates, in particular in the preloading direction of rotation.
  • the axial abutment in turn leads to an axial fixing of the nut element 50 on the drive section 32 acting counter to the deflection direction 136, with the nut element 50 in its first holding position 52 by the holding projection 84, which forms the first holding element 72, and with the nut element 50 in its second holding position 54 by the holding projection 84, which forms the second holding element 74.
  • this axial fixing enables the piston element 132 to be locked in its locking position, again regardless of whether this locking position is reached by a manual opening movement of the door or by motor drive by the motor unit 12 (see in particular the following description of the Fig. 11 , 12 ).
  • the respective axial stop surfaces 88 of the retaining projections 84 and the axial stop region 68 of the stop section 64 of the nut element 50 are aligned obliquely to the deflection direction 136, in particular at an angle between 30° and less than 90°, preferably between 60° and 85°, see in particular Fig. 9 .
  • the respective axial stop surfaces 88 of the retaining projections 84 and the axial stop region 68 of the stop section 64 of the nut element 50 are aligned perpendicular to the deflection direction 136.
  • Fig. 11 , 12 Detailed views of several sections of a pre-tensioning process during a manual opening of the door ( Fig. 11 ) or in the case of a pre-tensioning process driven by the motor unit 12 ( Fig. 12 ).
  • these two Fig. 11 , 12 with reference to the relevant provisions already contained in the Fig. 4 , 5 or the Fig. 7 , 8 already described features, whereby the special features of the embodiment shown are discussed accordingly.
  • Figure A of the Fig. 11 again shows a basic state in which the coupling element 40 and the piston element 132 arranged thereon (not shown) are arranged in a starting position.
  • the drive shaft 30, and thus the drive section 32 is positioned such that the stop surfaces 86, 88 of the holding projection 84, which forms the first holding element 72, abut positively on the corresponding stop areas 66, 68 of the nut element 50 or at least limit a radial or axial movement of the nut element 50 on one side.
  • the first holding element 72 or the corresponding holding projection 84 is arranged in its engagement position and the nut element 50 is fixed in its first holding position 52 on one side radially with respect to a movement counter to the preloading direction of rotation and on one side axially with respect to a movement counter to the deflection direction 136 on the drive section 32 of the drive shaft 30, at least when the drive shaft 30 begins to rotate.
  • the holding projection 84 which forms the second holding element 74, is arranged in its release position.
  • the nut element 50 Due to the alignment of the retaining projections 84 described above, it is possible for the nut element 50 to be moved manually during a manual opening movement of the door, as shown in Figure B the Fig. 11 shown, follows the sliding movement of the piston element 132 in the deflection direction 136 without being hindered by the holding projection 84 forming the second holding element 74 and lifts off from the first holding element 72.
  • FIG. 11 shows the state of the tension mechanism 20 immediately after a triggering situation occurs.
  • the drive shaft 30 rotates against the pre-tensioning direction in the direction shown in Figure B the Fig. 11 shown position, whereby the second holding element 74 or the corresponding holding projection 84 has been moved from its engagement position into its release position.
  • this rotation of the drive shaft 30 takes place automatically upon completion of the Fig. 11 described active holding of the drive shaft 30 in a fixed rotational position by the motor unit 12.
  • the mechanical energy stored in the compressed closing spring 134 generates the force or the required torque for the twisting.
  • FIG. 11 As opposed to Fig. 11 are in Fig. 12 different stages of a motor-driven pre-tensioning process of the closing spring 134 by the motor unit 12 are shown.
  • Figure B the Fig. 12 by an incipient rotation of the drive shaft 30 in the preloading direction of rotation via the fixation of the nut element 50 in its first holding position 52 by the first holding element 72 or the corresponding holding projection 84, the nut element 50 is also set in rotation. Via the threaded connection to the coupling element 40, this rotation of the nut element 50 is converted into an axial movement of the coupling element 40, as a result of which the piston element 132 is pulled in the deflection direction 136 into its locking position.
  • the holding projection 84 remains in positive engagement in the stop section 64 of the nut element 50 in order to ensure that the piston element 132 is locked in its locking position and that the preload of the closing spring 134 is maintained.
  • Figure C of the Fig. 12 shows a state of the pulling mechanism 20 directly after a triggering situation occurs.
  • the drive shaft 30 is rotated back against the pre-tensioning direction of rotation, whereby the first holding element 72 or the corresponding holding projection 84 is moved from its engagement position to its release position. This removes the fixation of the nut element 50 in its first holding position 54.
  • the piston element 132 is thereby released for a movement driven by the closing spring 134 against the deflection direction 136.
  • FIG. 13 shows an alternative further embodiment of an actuating unit 10 of the door drive 200, not according to the invention, in the Fig. 13 , 14
  • this actuating unit 10 is equipped with a type of ballpoint pen mechanism 100.
  • Fig. 13 shows the basic structure of the actuating unit 10 in this embodiment
  • Fig. 14 Detailed views of the mechanism in the style of a ballpoint pen mechanism 100 during operation.
  • a threaded connection is also provided in this embodiment for converting the rotary movement of the drive shaft 30 driven by the motor unit 12 into a pulled axial movement of the piston element 132.
  • the drive section 32 of the drive shaft 30 can be designed as a threaded spindle with an external thread 24, which engages in a corresponding internal thread 22 of a nut element 50.
  • the nut element 50 is mounted in the coupling element 40 in a rotationally fixed and axially displaceable manner.
  • An axial limitation of the movement of the nut element 50 in the coupling element 40 is created by a limiting element 42, which is arranged on an end of the coupling element 40 facing away from the piston element 132.
  • a rotation of the drive shaft 30 in the preloading direction of rotation thus leads to an axial pulling movement of the piston element 132 and thus as a result to a preload of the closing spring 134 (not shown).
  • the nut element 50 can also be mounted on the drive section 32 of the drive shaft 30 in a rotationally fixed and simultaneously axially displaceable manner.
  • the nut element 50 then has an external thread 24 which engages in a corresponding internal thread 22 in the coupling element 40 (not shown in each case).
  • a limiting element 42 is arranged at the end of the drive section 32 facing the piston element 132.
  • the type of ballpoint pen mechanism 100 has a contour sleeve 102 which is rotatably mounted and secured against axial movement along the deflection direction 136 and has a guide contour 104 and a guide pin 106 which is firmly connected to the piston element 132 or the coupling element 40 and engages in the guide contour 104.
  • the guide pin 106 is in Fig. 13 covered by the coupling element 40, its position at the end of the coupling element 40 facing away from the piston element 132 is indicated by an arrow.
  • the Function of the type ballpoint pen mechanism 100 is explained below using the Fig. 14 explained in more detail, in which five detailed views of different relative positioning of the guide pin 106 in the guide contour 104 are shown.
  • the guide contour 104 can follow the guide pin 106 when the coupling element 40, and thus the guide pin 106, moves in the deflection direction 136 (see Figures A, B of the Fig. 14 ).
  • the guide contour 104 is formed in such a way that after the movement of the piston element 132 and thus also of the coupling element 40 into the locking position has been completed, a movement of the piston element 122 driven by the closing spring 134 (not shown) against the deflection direction 136 is prevented (see Figure C of the Fig. 14 ). In other words, the piston element 132 is locked in its locking position.
  • a type of ballpoint pen mechanism 100 can thus make it possible in particular for the piston element 132 to remain locked in its locking position without additional energy consumption and for the closing spring 134 to remain pre-tensioned accordingly.
  • a brief active actuation, in particular pulling, of the piston element 132 in the deflection direction 136 is then necessary.
  • an energy storage device 16 (cf. Fig. 2 ) which supplies the motor unit 12 with the necessary electrical energy for the short active actuation described above.

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Claims (23)

  1. Système (200) d'entraînement de porte avec fonction de roue libre, présentant un mécanisme d'entraînement (130) apte à être relié à une porte, avec un élément piston (132) mobile axialement entre une position de départ et une position d'arrêt, un ressort de fermeture (134) pour solliciter l'élément piston (132) dans le sens de fermeture de la porte, et une roue libre (116) pour découpler un mouvement de la porte d'un mouvement de l'élément piston (132) à l'état monté du système (200) d'entraînement de porte, la roue libre étant activée au moins par le fait, pour l'élément piston (132), d'atteindre la position d'arrêt, le mécanisme d'entraînement (130) comprenant, pour précontraindre le ressort de fermeture (134), une unité d'actionnement électrique (10) avec un mécanisme de traction (20), le mécanisme de traction (20) tirant, lors de l'actionnement de l'unité d'actionnement électrique (10), l'élément piston (132) à l'encontre de la force du ressort de fermeture (134), de la position de départ à la position d'arrêt, dans laquelle l'unité de commande (10) bloque l'élément piston (132), de sorte que, grâce au fait que la roue libre (116) soit activée, la porte est apte à être déplacée librement manuellement sans être sollicitée par le ressort de fermeture (134) lorsque le système (200) d'entraînement de porte est monté,
    l'unité d'actionnement (10) libérant, lors de l'apparition d'une situation de déclenchement, l'élément piston (132) pour un mouvement à l'encontre de la direction de déploiement (136) dans la position de départ, afin de fermer la porte au moyen de la force du ressort de fermeture (134) ou de la maintenir dans une position de fermeture,
    caractérisé en ce que l'unité d'actionnement (10) présente une unité motrice électrique (12), le mécanisme de traction (20) étant apte à être entraîné par l'unité motrice électrique (12) pour convertir un mouvement de rotation de l'unité motrice électrique (12) dans un sens de rotation de précontrainte en un mouvement de translation dans la direction de déploiement (136) ; lors de l'actionnement de l'unité motrice électrique (12) dans le sens de rotation de précontrainte, le mécanisme de traction (20) tire l'élément piston (132) à l'encontre de la force du ressort de fermeture (134) de la position de départ à la position d'arrêt,
    le mécanisme de traction (20) présentant un arbre d'entraînement (30) apte à être entraîné en rotation par l'unité motrice électrique (12), un élément de liaison (40) de type tubulaire relié à l'élément piston (132) ainsi qu'un élément écrou (50) agencé entre l'arbre d'entraînement (30) et l'élément de liaison (40) et apte à coulisser axialement sur une section d'entraînement (32) de l'arbre d'entraînement (30), l'élément de liaison (40) présentant un filetage intérieur (22) et l'élément écrou (50) un filetage extérieur correspondant (24) pour former une liaison filetée, ou l'élément écrou (50) présentant un filetage intérieur (22) et la section d'entraînement (32) un filetage extérieur correspondant (24), et
    le mécanisme de traction (20) présentant un dispositif de maintien (70) pour la fixation de l'élément écrou (50) sur la section d'entraînement (32) dans une première position de maintien (52) et une deuxième position de maintien (54), au moins radialement dans le sens de rotation de précontrainte et au moins axialement dans le sens de déploiement (136),
    l'élément écrou (50) étant, lorsque l'élément piston (132) prend sa position de départ, apte à être fixé dans la première position de maintien (52) par le dispositif de maintien (70) ; lorsque l'élément écrou (50) est fixé dans la première position de maintien (52), l'actionnement de l'unité motrice électrique (12) dans le sens de rotation de précontrainte tirant l'élément piston (132) dans la position d'arrêt et ensuite l'unité d'actionnement (10) bloquant l'élément piston (132) dans la position d'arrêt, et
    lorsque l'unité motrice (12) n'est pas actionnée et, après un déplacement de l'élément piston (132) dans la position d'arrêt effectué par un mouvement d'ouverture manuel, l'élément écrou (50) étant apte à être fixé dans la deuxième position de maintien (54) par le dispositif de maintien (70), l'unité d'actionnement (10) bloquant l'élément piston (132) dans la position d'arrêt lorsque l'élément écrou (50) est fixé dans la deuxième position de maintien (54).
  2. Système (200) d'entraînement de porte selon la revendication 1,
    caractérisé
    en ce que, même après un déplacement de l'élément piston (132) dans la position d'arrêt, effectué par un mouvement d'ouverture manuelle de la porte, l'unité d'actionnement (10) bloque l'élément piston (132) dans la position d'arrêt.
  3. Système (200) d'entraînement de porte selon la revendication 1 ou la revendication 2,
    caractérisé
    en ce que le mécanisme de traction (20) est apte à être commuté entre un état de couplage de l'unité d'actionnement (10) et de l'élément piston (132), et un état de découplage de l'unité d'actionnement (10) et de l'élément piston (132), le mécanisme de traction (20) prenant l'état de couplage lors de la traction et du blocage de l'élément piston (132) et prenant l'état de découplage lors de la libération de l'élément piston (132), de préférence de manière autonome.
  4. Système (200) d'entraînement de porte selon l'une des revendications 1 à 3,
    caractérisé
    en ce que le dispositif de maintien (70) comporte un premier élément de maintien (72) et un deuxième élément de maintien (74), les deux éléments de maintien (72, 74) étant agencés ou montés sur la section d'entraînement (32) à distance l'un de l'autre le long de la direction de déploiement (136) et étant aptes à être déplacés chacun entre une position d'engagement, dans laquelle l'élément écrou (50) est apte à être fixé dans la première position de maintien (52) ou dans la deuxième position de maintien (54) sur la section d'entraînement (32), et une position de libération dans laquelle la fixation de l'élément écrou (50) est libérée de la section d'entraînement (32).
  5. Système (200) d'entraînement de porte selon la revendication 4,
    caractérisé
    en ce que, lorsque le premier élément de maintien (72) prend sa position d'engagement, l'élément écrou (50) est apte à être fixé dans la première position de maintien (52) par engagement par complémentarité de formes du premier élément de maintien (72) dans un logement d'engagement (62) de l'élément écrou (50) ;
    lorsque le deuxième élément de maintien (74) prend sa position d'engagement, l'élément écrou (50) est apte à être fixé dans la deuxième position de maintien (54) par engagement par complémentarité de formes du deuxième élément de maintien (74) dans le logement d'engagement (62) de l'élément écrou (50).
  6. Système (200) d'entraînement de porte selon la revendication 4 ou la revendication 5,
    caractérisé
    en ce que les deux éléments de maintien (72, 74) sont conçus sous la forme de cliquets d'arrêt (80) aptes à notamment être relevés de manière commutable ou sous la forme de boulons de blocage à billes (82) notamment extensibles de manière commutable.
  7. Système (200) d'entraînement de porte selon l'une des revendications 4 à 6,
    caractérisé
    en ce que le premier élément de maintien (72) et le deuxième élément de maintien (74) sont agencés sur la section d'entraînement (32) sans décalage périphérique l'un par rapport à l'autre.
  8. Système (200) d'entraînement de porte selon l'une des revendications 4 à 7,
    caractérisé
    en ce que le dispositif de maintien (70) présente un actionneur de levage (90), de préférence un actionneur de levage électromagnétique (90), ainsi qu'une tige de levage (92) logée par l'arbre d'entraînement (30), en particulier par la section d'entraînement (32), et apte à être déplacée le long de la direction de déploiement (136) par l'actionneur de levage (90), les deux éléments de maintien (72, 74) étant de préférence aptes à être commutés ensemble par la tige de levage (92) entre leur position d'engagement et leur position de libération.
  9. Système (200) d'entraînement de porte selon la revendication 8,
    caractérisé
    en ce que l'actionneur de levage (90) présente un ressort de réglage (94) agissant sur la tige de levage (92) le long de la direction de déploiement (136), le ressort de réglage (94) exerçant, par l'intermédiaire de la tige de levage (92), une force sur les deux éléments de maintien (72, 74) en direction de leur position de libération respective.
  10. Système (200) d'entraînement de porte selon l'une des revendications 4 à 9,
    caractérisé
    en ce que les deux éléments de maintien (72, 74) sont précontraints par ressort d'un côté en direction de leur position d'engagement, ce qui fait que les éléments de maintien (72, 74), en particulier lorsque l'unité motrice (12) n'est pas actionnée et après un déplacement de l'élément piston (132) dans la position d'arrêt effectué par un mouvement d'ouverture manuel, sont aptes à être déplacés de manière réversible par l'élément écrou (50), de leur position d'engagement respective vers leur position de libération.
  11. Système (200) d'entraînement de porte selon l'une des revendications 4 à 10,
    caractérisé
    en ce que, pour une réinitialisation de la position de maintien (10), la section d'entraînement (32) s'étend, à l'encontre de la direction de déploiement (136), au-delà du premier élément de maintien (72) de telle sorte qu'après la libération de l'élément écrou (50) de la première position de maintien (52) et le déplacement consécutif de l'élément piston (132) à l'encontre de la direction de déploiement (136) dans la position de départ, l'élément écrou (50) continue à être monté sur la section d'entraînement (32) de manière à être solidaire en rotation et à être apte à être déplacé axialement.
  12. Système (200) d'entraînement de porte selon l'une des revendications 4 à 11,
    caractérisé
    en ce que la section d'entraînement (32) présente une section transversale (34) non circulaire, axialement constante, une ouverture centrale (60) de l'élément écrou (50) étant adaptée à la section transversale (34) de l'arbre d'entraînement (30) et l'élément écrou (50) étant ainsi monté sur l'arbre d'entraînement (30) de manière solidaire en rotation et déplaçable axialement.
  13. Système (200) d'entraînement de porte selon la revendication 4 ou la revendication 5,
    caractérisé
    en ce que les deux éléments de maintien (72, 74) sont réalisés sous forme de saillies de maintien (84), en particulier avec respectivement une surface de butée radiale (86) et une surface de butée axiale (88), qui sont prévues en saillie radiale sur la section d'entraînement (32) et sont agencées sur la section d'entraînement (32) de manière décalée axialement et le long d'une périphérie de la section d'entraînement (32).
  14. Système (200) d'entraînement de porte selon la revendication 13,
    caractérisé
    en ce que les saillies de maintien (84) sont aptes à être commutées entre la position de libération et la position d'engagement par une rotation de l'arbre d'entraînement (30) .
  15. Système (200) d'entraînement de porte selon la revendication 14,
    caractérisé
    en ce que les saillies de maintien (84) sont aptes à être déplacées de la position de libération à la position d'engagement lors d'une rotation de l'arbre d'entraînement (30) dans le sens de rotation de précontrainte et de la position d'engagement à la position de libération lors d'une rotation de l'arbre d'entraînement (30) dans le sens inverse de la rotation de précontrainte.
  16. Système (200) d'entraînement de porte selon l'une des revendications 13 à 15,
    caractérisé
    en ce que le logement d'engagement (62) de l'élément écrou (50) présente une section de butée (64) pour les saillies de maintien (84), notamment avec une zone de butée radiale (66) et une zone de butée axiale (68),
    la section de butée (64) étant apte à être contactée radialement et axialement, par complémentarité de formes, dans sa position d'engagement, par la saillie de maintien (84) formant le premier élément de maintien (72), et l'élément écrou (50) étant ainsi apte à être fixé dans sa première position de maintien (52), et
    la section de butée (64) étant apte à être contactée radialement et axialement, par complémentarité de formes, dans sa position d'engagement, par la saillie de maintien (84) formant le deuxième élément de maintien (74), et l'élément écrou (50) étant ainsi apte à être fixé dans sa deuxième position de maintien (54).
  17. Système (200) d'entraînement de porte selon la revendication 16,
    caractérisé
    en ce que les saillies de maintien (84) sont agencées sur la section d'entraînement (32) avec un décalage circonférentiel de l'une par rapport à l'autre, de telle sorte que, dans une position de rotation de l'arbre d'entraînement (30) dans laquelle la saillie de maintien (84) formant le premier élément de maintien (72) se trouve dans sa position d'engagement en contact par complémentarité de formes avec la section de butée (64), la saillie de maintien (84) qui forme le deuxième élément de maintien (74) se trouve dans sa position de libération, et vice versa.
  18. Système (200) d'entraînement de porte selon la revendication 16 ou la revendication 17,
    caractérisé
    en ce que la zone de butée axiale (68) de la section de butée (64) et la surface de butée axiale (88) de la saillie de maintien (84) qui forme le premier élément de maintien (72) et la surface de butée axiale (88) de la saillie de maintien (84) qui forme le deuxième élément de maintien (74) sont orientées perpendiculairement à la direction de déploiement (136).
  19. Système (200) d'entraînement de porte selon la revendication 16 ou la revendication 17,
    caractérisé
    en ce que la zone de butée axiale (68) de la section de butée (64) et la surface de butée axiale (88) de la saillie de maintien (84) qui forme le premier élément de maintien (72) et la surface de butée axiale (88) de la saillie de maintien (84) qui forme le deuxième élément de maintien (74) sont orientées obliquement, notamment selon un angle compris entre 30° et moins de 90°, de préférence entre 60° et 85°, par rapport à la direction de déploiement (136).
  20. Système (200) d'entraînement de porte selon l'une des revendications 13 à 19,
    caractérisé
    en ce que, pour une réinitialisation de l'unité d'actionnement (10), la saillie de maintien (84) formant le premier élément de maintien (72) s'étend axialement à l'opposé de la direction de déploiement (136), de telle sorte qu'après la libération de l'élément écrou (50) de la première position de maintien (52) et le déplacement consécutif de l'élément piston (132) à l'opposé de la direction de déploiement (136) dans la position de départ, l'élément écrou (50) est monté solidaire en rotation et mobile axialement sur la section d'entraînement (32) au moins lors d'une rotation de l'arbre d'entraînement (30) dans le sens de rotation de précontrainte.
  21. Système (200) d'entraînement de porte selon l'une des revendications précédentes,
    caractérisé
    en ce que la roue libre (116) présente une butée (118) de roue libre agencée sur un arbre de fermeture (112), en particulier sur une came (120) de roue libre, et une broche (122) de roue libre agencée sur un levier de fermeture (114) et s'appuyant latéralement sur la butée de roue libre (118) lorsque la porte est en position de fermeture et que l'unité motrice (12) n'est pas actionnée, la butée (118) de roue libre étant entraînée par la broche (122) de roue libre lors d'un mouvement d'ouverture manuel et se soulevant de la broche (122) de roue libre lors d'une traction de l'élément piston (132) par l'unité d'actionnement (10) dans sa position d'arrêt,
    ou vice versa.
  22. Système (200) d'entraînement de porte selon l'une des revendications précédentes,
    caractérisé
    en ce qu'à l'état monté du système (200) d'entraînement de porte, la position d'arrêt de l'élément piston (132) correspond à un angle d'ouverture de la porte compris entre 0° et 180°, notamment entre 75° et 105°, de préférence de 90°.
  23. Système (200) d'entraînement de porte selon l'une des revendications précédentes,
    caractérisé
    en ce que la situation de déclenchement se produit en cas de coupure de courant et/ou en présence de signaux de déclenchement, en particulier dans une situation d'urgence, notamment en cas d'incendie.
EP23172513.6A 2022-05-20 2023-05-10 Entraînement de porte Active EP4279691B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022205037.1A DE102022205037A1 (de) 2022-05-20 2022-05-20 Türantrieb

Publications (2)

Publication Number Publication Date
EP4279691A1 EP4279691A1 (fr) 2023-11-22
EP4279691B1 true EP4279691B1 (fr) 2024-12-04

Family

ID=86331280

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Application Number Title Priority Date Filing Date
EP23172513.6A Active EP4279691B1 (fr) 2022-05-20 2023-05-10 Entraînement de porte

Country Status (3)

Country Link
EP (1) EP4279691B1 (fr)
DE (1) DE102022205037A1 (fr)
PL (1) PL4279691T3 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0137861B1 (fr) * 1983-10-13 1987-03-25 Dorma Baubeschlag GmbH. & Co. KG Ferme-porte automatique
DE3423242C1 (de) * 1984-06-23 1985-11-07 Dorma-Baubeschlag Gmbh & Co Kg, 5828 Ennepetal Selbsttaetiger Tuerschliesser
DE4237179C2 (de) * 1992-11-04 2002-01-31 Geze Gmbh Türschließer
GB2415463B (en) * 2004-06-26 2008-05-28 Jebron Ltd Door closer
DE102016123516A1 (de) * 2016-12-06 2018-06-07 Eco Schulte Gmbh & Co. Kg Freilauftürschließer

Also Published As

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DE102022205037A1 (de) 2023-11-23
PL4279691T3 (pl) 2025-03-31
EP4279691A1 (fr) 2023-11-22

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