EP0567897A2 - Dispositif pour actionner une porte coulissante - Google Patents

Dispositif pour actionner une porte coulissante Download PDF

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Publication number
EP0567897A2
EP0567897A2 EP93106360A EP93106360A EP0567897A2 EP 0567897 A2 EP0567897 A2 EP 0567897A2 EP 93106360 A EP93106360 A EP 93106360A EP 93106360 A EP93106360 A EP 93106360A EP 0567897 A2 EP0567897 A2 EP 0567897A2
Authority
EP
European Patent Office
Prior art keywords
bar
leaf
main
sliding door
sliding
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Withdrawn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
EP93106360A
Other languages
German (de)
English (en)
Other versions
EP0567897A3 (en
Inventor
Andrea Negroni
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.)
Aprimatic SpA
Original Assignee
Aprimatic SpA
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 Aprimatic SpA filed Critical Aprimatic SpA
Publication of EP0567897A2 publication Critical patent/EP0567897A2/fr
Publication of EP0567897A3 publication Critical patent/EP0567897A3/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • 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 present invention relates to devices for operating sliding doors, particularly automatic sliding doors of the type which are operated, for example, as a result of the activation of a presence detector situated in the region of the floor in front of the door.
  • the operating devices used up to now for this type of doors comprise a rotary, direct-current, alternating current, or brushless electric motor which drives an endless belt, usually a toothed belt, by means of a reduction unit, the belt having two parallel passes connected rigidly to the two leaves of the sliding door so that the rotation of the belt in one sense or the other causes the leaves to open or close, respectively.
  • the main disadvantage of the solution indicated above lies in the fact that the transmission which brings about the movement of the leaves is quite complex, being constituted by a moderate number of parts, and is consequently the source of a series of possible problems such as, for example, wear of the belts or of the brushes of the motor, the need to tension the belt periodically, the generation of dust resulting from the wear of the belt and, finally, noise due to the reduction unit and to the belt.
  • the object of the invention is to prevent the problems indicated above by means of an operating system which is particularly simple and reliable.
  • the subject of the invention is a device for operating a sliding door comprising at least one leaf mounted for sliding on guide means, characterised in that the device comprises a brushless, direct-current, linear electric motor including: a main stator constituted by a bar of ferromagnetic material mounted on a fixed structure parallel to the direction of sliding of the leaf, at least one electrical winding which is disposed around a portion of the bar and is intended to be supplied with direct current, a unit which is movable linearly relative to the bar and is connected rigidly to the leaf, the movable unit carrying permanent magnets facing two opposite sides of the bar, and two auxiliary stator bars parallel to the main bar and spaced from opposite sides thereof.
  • a main stator constituted by a bar of ferromagnetic material mounted on a fixed structure parallel to the direction of sliding of the leaf, at least one electrical winding which is disposed around a portion of the bar and is intended to be supplied with direct current
  • a unit which is movable linearly relative to the bar and is connected rigidly to
  • a brushless, direct-current, linear motor of the type indicated above formed the subject of the technical article "Analysis of a slotless permanent-magnet brushless DC linear motor” by B. Brunelli, D. Casadei, G. Serra, published in the Proceedings of "ICEM 90" - International Conference on Electrical Machines, Cambridge, Massachussetts, USA - 1990.
  • linear electric motor indicated above also enables the leaf of the door to be braked electrically by the reversal of the polarity of the supply, which would be difficult to achieve with an asynchronous, linear electric motor.
  • a door with two leaves may have a single main stator with its two auxiliary stator bars, and two movable units associated with the two leaves, respectively.
  • linear electric motor indicated above is also free of the problems which would affect other types of linear electric motors such as a linear stepper motor (which would have poor starting acceleration, an unsuitable working voltage and extreme sensitivity to dirt) or an asynchronous linear motor which would require a very complicated piloting system in order to achieve electrical braking.
  • a linear stepper motor which would have poor starting acceleration, an unsuitable working voltage and extreme sensitivity to dirt
  • asynchronous linear motor which would require a very complicated piloting system in order to achieve electrical braking.
  • the reference numeral 1 generally indicates an automatic sliding door, that is, a door of the type which is operated automatically as a result of the activation of presence sensors disposed on each side of the door in the region of the floor 2 which is in front of the door.
  • the door 1 comprises two leaves 3 (in the embodiment illustrated, two glass leaves, the frame 3a of each of which bears a pair of carriages 4).
  • Each carriage 4 comprises a substantially T-shaped support bracket 5 (see also Figures 2, 3) which is fixed to the upper part of the respective frame 3a and on which three wheels 6 are mounted idly.
  • the central wheel 6 of the three and the other two end wheels 6 engage, respectively, two facing guide tracks 7, 8 ( Figure 3) of a guide rail 9 fixed horizontally on a fixed structure 10, for example, by means of screws 11, so that each leaf 3 is supported for sliding, preferably along a straight path, in the directions indicated by the arrows A in Figure 1.
  • One of the two carriages 4 of each leaf 3 is associated with the movable unit of a brushless, direct-current, linear electric motor, generally indicated 12.
  • the electric motor 12 comprises a stator constituted by a bar 13 of ferromagnetic material, for example, of steel, the ends of which are anchored to the fixed structure 10 and which is disposed parallel to the guide rail 9. A substantial portion of the length of the bar 13 is covered by one or more electrical windings which are intended to be supplied with direct current.
  • One of the two carriages 4 of each leaf 3 rigidly supports a movable unit 15 by means of a bracket 14, the unit 15 being mounted for linear movement on the stator bar 13 without having parts in contact therewith.
  • the movable unit 15 comprises two permanent magnets 16 facing the two opposite sides 13a of the stator bar 13 and joined together by two plates 17.
  • auxiliary stator bars 18 ( Figure 3) disposed parallel to the main bar 13 and spaced from its two opposite sides so as not to interfere with the passage of each movable unit 15.
  • the auxiliary bars are preferably connected at their ends to facilitate the closure of the lines of the magnetic field generated by the main bar 13 at the moment when the winding associated therewith is supplied with direct current.
  • each movable unit moves in one direction or the other according to the polarity of the supply to the motor. It therefore suffices to reverse the polarity in order to reverse the movement of each leaf.
  • the operating device according to the invention has no transmission between the motor and the leaf and is therefore free of all the problems of the prior art indicated above.
  • each unit 15 has two appendages constituting two bushes which are mounted for sliding on the bars 18.

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)
EP19930106360 1992-04-27 1993-04-20 A device for operating a sliding door Withdrawn EP0567897A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO920116 IT227539Y1 (it) 1992-04-27 1992-04-27 Dispositivo di comando per una porta scorrevole.
ITTO920116U 1992-04-27

Publications (2)

Publication Number Publication Date
EP0567897A2 true EP0567897A2 (fr) 1993-11-03
EP0567897A3 EP0567897A3 (en) 1993-11-10

Family

ID=11410051

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930106360 Withdrawn EP0567897A3 (en) 1992-04-27 1993-04-20 A device for operating a sliding door

Country Status (2)

Country Link
EP (1) EP0567897A3 (fr)
IT (1) IT227539Y1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0676359A2 (fr) * 1994-04-08 1995-10-11 Otis Elevator Company Assemblage pour entraînement de porte d'ascenseur avec moteur à induction linéaire
WO2004053265A1 (fr) * 2002-12-09 2004-06-24 Dorma Gmbh + Co. Kg Entrainement lineaire, notamment pour une porte coulissante ou similaire
WO2009021596A1 (fr) * 2007-08-16 2009-02-19 Dorma Gmbh + Co. Kg Entraînement linéaire pour portes coulissantes ou similaires
EP2189602A3 (fr) * 2008-11-19 2014-01-01 Dorma GmbH + CO. KG Entraînement linéaire pour un battant de porte

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1893377A (en) * 1931-05-27 1933-01-03 Dahlstrom Metallic Door Compan Rectilinear electromagnetic motor
GB1113008A (en) * 1966-04-20 1968-05-08 Electronique & Automatisme Sa Improvements in sliding panel actuators

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1893377A (en) * 1931-05-27 1933-01-03 Dahlstrom Metallic Door Compan Rectilinear electromagnetic motor
GB1113008A (en) * 1966-04-20 1968-05-08 Electronique & Automatisme Sa Improvements in sliding panel actuators

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FEINWERKTECHNIK + MESSTECHNIK vol. 87, no. 4, 5 June 1979, MUENCHEN DE pages 157 - 162 J.DRAEGER, H.MOCZALA 'gleichstrom-linearmotoren' *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0676359A2 (fr) * 1994-04-08 1995-10-11 Otis Elevator Company Assemblage pour entraînement de porte d'ascenseur avec moteur à induction linéaire
EP0676359A3 (fr) * 1994-04-08 1996-05-01 Otis Elevator Co Assemblage pour entraînement de porte d'ascenseur avec moteur à induction linéaire.
US5612518A (en) * 1994-04-08 1997-03-18 Otis Elevator Company Linear induction motor door drive assembly for elevators
WO2004053265A1 (fr) * 2002-12-09 2004-06-24 Dorma Gmbh + Co. Kg Entrainement lineaire, notamment pour une porte coulissante ou similaire
WO2009021596A1 (fr) * 2007-08-16 2009-02-19 Dorma Gmbh + Co. Kg Entraînement linéaire pour portes coulissantes ou similaires
JP2010537608A (ja) * 2007-08-16 2010-12-02 ドルマ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト スライドドア等のリニア駆動部
US8456111B2 (en) 2007-08-16 2013-06-04 Dorma Gmbh & Co. Kg Linear drive for sliding doors or the like
EP2189602A3 (fr) * 2008-11-19 2014-01-01 Dorma GmbH + CO. KG Entraînement linéaire pour un battant de porte

Also Published As

Publication number Publication date
EP0567897A3 (en) 1993-11-10
ITTO920116V0 (it) 1992-04-27
IT227539Y1 (it) 1997-12-15
ITTO920116U1 (it) 1993-10-28

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