EP2116681A2 - Endanschlagvorrichtung für einen elektromechanischen Aktuator für sich bewegende Türen, Haupteingangstüren, Toren oder ähnlichem - Google Patents

Endanschlagvorrichtung für einen elektromechanischen Aktuator für sich bewegende Türen, Haupteingangstüren, Toren oder ähnlichem Download PDF

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Publication number
EP2116681A2
EP2116681A2 EP09159352A EP09159352A EP2116681A2 EP 2116681 A2 EP2116681 A2 EP 2116681A2 EP 09159352 A EP09159352 A EP 09159352A EP 09159352 A EP09159352 A EP 09159352A EP 2116681 A2 EP2116681 A2 EP 2116681A2
Authority
EP
European Patent Office
Prior art keywords
actuator element
actuator
limit stop
switch
stop device
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.)
Withdrawn
Application number
EP09159352A
Other languages
English (en)
French (fr)
Other versions
EP2116681A3 (de
Inventor
Lorenzo Galberti
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.)
Nice SpA
Nice SRL
Original Assignee
Nice SpA
Nice SRL
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 Nice SpA, Nice SRL filed Critical Nice SpA
Publication of EP2116681A2 publication Critical patent/EP2116681A2/de
Publication of EP2116681A3 publication Critical patent/EP2116681A3/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
    • H01H3/161—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid
    • H01H3/163—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid associated with locking or manipulating means of the closing member
    • 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
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/622—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
    • 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
    • E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
    • E05F15/652—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by screw-and-nut mechanisms
    • 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
    • E05Y2400/10—Electronic control
    • E05Y2400/32—Position control, detection or monitoring
    • E05Y2400/322—Position control, detection or monitoring by using absolute position sensors
    • E05Y2400/324—Switches
    • 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
    • E05Y2400/10—Electronic control
    • E05Y2400/32—Position control, detection or monitoring
    • E05Y2400/35—Position control, detection or monitoring related to specific positions
    • E05Y2400/354—End positions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/40—Physical or chemical protection
    • E05Y2800/404—Physical or chemical protection against component faults or failure
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • 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
    • 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
    • E05Y2900/40—Application of doors, windows, wings or fittings thereof for gates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
    • H01H2003/405—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing using a walking nut

Definitions

  • the present invention relates to a limit stop device for an electromechanical actuator for moving doors, main entrance doors, gates or the like.
  • electromechanical actuators are widely known for automatically moving barriers, such as swing gates, up-and-over doors, sliding gates, automatic doors, garage doors and the like.
  • These actuators generally comprise an electric motor capable of operating a thrust mechanism, operatively connected to the barrier to be moved.
  • these actuators are also provided with limit stop devices, the main function of which is to deactivate the electric motor when the thrust mechanism reaches predefined limit stop positions, so as to allow regulation of the range of movement of the barrier according to requirements relative to its movement.
  • a conventional limit stop device comprises a switch to deactivate the electric motor and a mechanical actuator to activate said switch.
  • the mechanical actuator substantially rigid, slides inside a seat produced in a support integral with the switch.
  • the thrust mechanism When the thrust mechanism reaches the predefined limit stop position, it exerts a force on the mechanical actuator, making it slide in its seat.
  • the mechanical actuator translates rigidly to act on the switch, activating it, which results in deactivation of the electric motor.
  • the thrust mechanism releases the mechanical actuator, which can return to the initial idle position as a result of a return spring.
  • a further drawback derives from the fact that, at each operation to move the barrier, the mechanical actuator of the limit stop device rigidly discharges the force exerted by the thrust mechanism onto the switch.
  • the main aim of the present invention is to provide a limit stop device for an electromechanical actuator for moving doors, main entrance doors, gates or the like which allows the aforesaid drawbacks to be overcome.
  • an object of the present invention is to provide a limit stop device, which is capable of operating reliably even in adverse weather conditions, in particular in the presence of ice or snow.
  • a further object of the present invention is to provide a limit stop device, in which the switch is protected from phenomena of wear or damage caused by forces imparted by the thrust mechanism.
  • a further object of the present invention is to provided a limit stop device, which allows compensation of any assembly errors or constructional tolerances of the thrust mechanism.
  • Yet another object of the present invention is to provided a limit stop device, which is easy to produce with industrial processes at relatively low cost.
  • the limit stop device comprises a switch to deactivate an electric motor and an actuator element, having an at least partially elastically deformable structure, to activate said switch.
  • the deformability of the structure of the actuator element allows a drastic reduction in the formation of ice deposits that might prevent its correct movement. This ensures correct operation of the limit stop device also in particularly adverse weather conditions.
  • the elastically deformable structure of the actuator element also allows the shock force of the thrust mechanism to be absorbed. In this way, the switch is subjected to stresses having, constantly in time, a degree compatible with its structural strength, even when the weather conditions vary or after numerous operations.
  • the elastically deformable structure of the actuator element allows it to return to the idle position when the force imparted on the thrust mechanism ceases, without the use of return springs, with relative simplification of the overall structure of the limit stop device.
  • Figure 6 schematically shows some embodiments for an actuator element included in the limit stop device according to the invention.
  • the present invention relates to a limit stop device 100 for an electromechanical actuator for moving doors, main entrance doors, gates or the like.
  • the limit stop device 100 in its most general definition, comprises a switch 101 to deactivate the electric motor 3 of the electromechanical actuator and an actuator element 110 to activate the switch 101.
  • the actuator element 110 is formed by an at least partially elastically deformable structure.
  • the actuator element 110 is formed by a compression spring, preferably made of metal material.
  • the actuator element 110 could be formed by an elastically deformable shaped strip.
  • the actuator element 110 could be formed by a coiled spring.
  • the actuator element 110 is reversibly movable, preferably rotationally, between an idle position in which it does not interact with the switch 101, and an activation position, in which it activates the switch 101 in order to deactivate the electric motor 3.
  • the limit stop device 100 according to the invention and its operation will now be described with particular reference to the use of the electromagnetic actuator 1 of Figure 2 for moving swing gates.
  • limit stop device 100 could be used in electromagnetic actuators of different type, for example for moving up-and-over doors, sliding gates, automatic doors, garage doors or other types of barriers.
  • the electromechanical actuator 1 is equipped with a motor unit comprising an electric motor 3 suitable to operate a thrust mechanism 5, in turn operatively connected to the gate to be moved.
  • Said motor unit preferably also comprises a drive transmission unit 4, operatively connected to the electric motor 3 and to the thrust mechanism 5.
  • the drive transmission unit 4 preferably not only transfers motion but also reduces the rotation speed of the electric motor 3 to a speed compatible with the operating characteristics of the thrust mechanism 5.
  • the thrust mechanism 5 comprises a revolving threaded bar 51 and a bushing 52, mechanically coupled thereto through a leadscrew-nut type coupling, so as to transform the rotational motion of the bar 51 into a linear motion of the bushing 52, which is thus free tor translate along the bar 51.
  • the bushing 52 is connected solidly to the gate to be moved, for example by means of a bracket 53.
  • the electromechanical actuator 1 comprises a casing 2, formed by a pair of superimposed shells 21-22 and 23-24 to respectively house the thrust mechanism 5 and the motor unit.
  • the electromechanical actuator 1 also comprises one or more limit stop devices 100 according to the invention, suitable to deactivate the electric motor 3, when the bushing 52 reaches one or more predefined positions along the threaded bar 51.
  • the electromechanical actuator 1 preferably comprises a pair of limit stop devices 100, operatively associated with the shell 22 of the body 2 in predefined positions 100A-100B ( Figure 3 ), advantageously at the ends of the threaded bar 51.
  • each limit stop device 100 comprises a switch 101, which is preferably provided with an activation lever 1010 and an activation button 1011 ( Figures 3-5 ).
  • the activation lever 1010 is advantageously formed by a flexible strip, fastened to the body of the switch 101 and shaped so as to remain, when idle, separated from the activation button 1011.
  • the switch 101 is connected to the electric motor 3 or to a control unit (not shown).
  • This electrical connection is advantageously arranged so that activation of the switch, i.e. pressure of the lever 1010 on the button 1011, causes deactivation of the electric motor 3.
  • the switch 101 is advantageously housed in a housing 1013, closable by means of a cover 1014.
  • the housing 1013 is in turn housed in a further housing 1021 defined in a support element 102.
  • housings 1013 and 1021 are laterally open so as to allow access to the lever 1010 of the switch 101.
  • connection means are used to make the switch 101 integral with the support element 102.
  • a further support element 103 is advantageously used to fix the assembly formed by the support element 102, by the housing 1013, by the switch 101 and by the cover 1014 to the shell 22.
  • the limit stop device 100 comprises an actuator element 110, composed of an at least partially elastically deformable structure.
  • the actuator element 110 is rotationally connected, for example through a pin 111, to the support element 102 in a portion 1022 thereof, which is substantially coplanar with the housing 1021 and projecting laterally with respect thereto.
  • the actuator element can thus rotate around the pivot pin 111 and it is thus rotationally movable with respect to the support element 102 and to the switch 101.
  • the actuator element 110 is movable between an idle position 500 ( Figure 3 ), in which it does not interact with the switch 101, and an activation position 501 ( Figure 4 ), in which the actuator element 110 operates the switch 101.
  • the actuator element 110 comprises a first portion or end 1101, suitable to come into contact with the bushing 52, when this latter reaches the predefined position 100A-100B along the threaded bar 51.
  • a second portion or end 1102 is suitable to activate the switch 101, when the actuator element 110 reaches the aforesaid activation position.
  • a third portion or end 1103 is rotationally connected to the pivot pin 111, which in turn is integrally connected to the support element 102.
  • the bushing 52 When the bushing 52 reaches a predefined position 100A or 100B along the threaded bar 51, it exerts on the first end 1101 of the spring 110 a force F1, such as to determine a rotation 1104 thereof about the pin 111, to which the third end 1103 of the spring 110 is rotationally constrained ( Figure 3 ).
  • the spring 110 passes from an idle position 500 to the activation position 501, in which the end 1102 of the spring 110 is located against the lever 1010 of the switch 101.
  • the end 1102 of the spring 110 thus exerts a force F3 on the lever 1010, which in turn presses the button 1102, activating the switch 101.
  • the force F3, exerted by the end 112 of the spring 110, is less than the force F1, exerted by the bushing 52, given that the spring 110 is elastically deformed once subjected to the thrust F1, and dampens part of the thrust coming from the bushing 52.
  • Activation of the switch 101 causes deactivation of the electric motor 3.
  • the bushing 52 in general does not immediately interrupt its translation along the threaded bar 51, due to the inertia of the electric motor and of the thrust mechanism.
  • the support element 102 thus acts as a mechanical stop for the bushing 52, when this latter exceeds the predefined position 100A-100B, following deactivation of the electric motor 3.
  • the elastic energy accumulated by the spring 110 during the previous compression steps can thus be released, generating an elastic return force F2 which causes a rotation 1105 of the spring 110, which can thus return to its initial position 500.
  • the deformability of the structure of the actuator element 110 allows any ice deposits to be removed from the surface thereof during movement of this actuator.
  • the actuator element 110 offers a reduced contact surface with the support element 102, thus preventing the formation of ice deposits such as to obstruct the movement thereof.
  • the deformable structure of the actuator element 110 also allows the force imparted by the bushing 52 to be partially dampened, absorbing any excess thrusts. In this way, the switch 101 is never subjected to abnormal stresses which can compromise correct operation thereof.
  • the deformable structure of the actuator element 110 also allows compensation of any misalignments in the mutual positioning between the threaded bar 51, bushing 52 and shell 22 of the casing 2, caused by machining tolerances or mechanical clearances.
  • the relatively limited rotational movement of the actuator element 110 with respect to the support element 102 ensures effective operation of the switch 101, while at the same time ensuring high reliability and sturdiness in the operation of the limit stop device 100.
  • the limit stop device 100 also has a structure that is particularly simple to produce and assemble, which is particularly suitable for industrial production.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Lock And Its Accessories (AREA)
EP09159352.5A 2008-05-09 2009-05-04 Endanschlagvorrichtung für einen elektromechanischen Aktuator für sich bewegende Türen, Haupteingangstüren, Toren oder ähnlichem Withdrawn EP2116681A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000068A ITTV20080068A1 (it) 2008-05-09 2008-05-09 Dispositivo di fine corsa per un attuatore elettromeccanico per la movimentazione di porte, portoni, cancelli o simili

Publications (2)

Publication Number Publication Date
EP2116681A2 true EP2116681A2 (de) 2009-11-11
EP2116681A3 EP2116681A3 (de) 2014-03-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09159352.5A Withdrawn EP2116681A3 (de) 2008-05-09 2009-05-04 Endanschlagvorrichtung für einen elektromechanischen Aktuator für sich bewegende Türen, Haupteingangstüren, Toren oder ähnlichem

Country Status (2)

Country Link
EP (1) EP2116681A3 (de)
IT (1) ITTV20080068A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3020905A1 (de) * 2014-11-11 2016-05-18 Novoferm tormatic GmbH Drehtorantrieb

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1763272A1 (de) * 1968-04-26 1970-08-27 Hunter Douglas Elektromotor zum Hochziehen und Herablassen einer Lamellenjalousie
US5299678A (en) * 1991-05-17 1994-04-05 The Chamberlain Group, Inc. Limit switch mechanism for garage door opener
DE102004014285B3 (de) * 2004-03-22 2005-08-11 Miele & Cie. Kg Enschalteranordnung für einen elektrischen Antrieb, insebondere für Haushaltgeräte
EP1770237A2 (de) * 2005-09-23 2007-04-04 Roger Technology S.N.C. Di Florian Dino & C. Elektromechanisches Antrieb für eine Schwenktür

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1763272A1 (de) * 1968-04-26 1970-08-27 Hunter Douglas Elektromotor zum Hochziehen und Herablassen einer Lamellenjalousie
US5299678A (en) * 1991-05-17 1994-04-05 The Chamberlain Group, Inc. Limit switch mechanism for garage door opener
DE102004014285B3 (de) * 2004-03-22 2005-08-11 Miele & Cie. Kg Enschalteranordnung für einen elektrischen Antrieb, insebondere für Haushaltgeräte
EP1770237A2 (de) * 2005-09-23 2007-04-04 Roger Technology S.N.C. Di Florian Dino & C. Elektromechanisches Antrieb für eine Schwenktür

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3020905A1 (de) * 2014-11-11 2016-05-18 Novoferm tormatic GmbH Drehtorantrieb

Also Published As

Publication number Publication date
ITTV20080068A1 (it) 2009-11-10
EP2116681A3 (de) 2014-03-19

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