EP1780163A1 - Door system - Google Patents

Door system Download PDF

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Publication number
EP1780163A1
EP1780163A1 EP06122347A EP06122347A EP1780163A1 EP 1780163 A1 EP1780163 A1 EP 1780163A1 EP 06122347 A EP06122347 A EP 06122347A EP 06122347 A EP06122347 A EP 06122347A EP 1780163 A1 EP1780163 A1 EP 1780163A1
Authority
EP
European Patent Office
Prior art keywords
door
reel
guide channels
pivot axis
door system
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Withdrawn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
EP06122347A
Other languages
German (de)
English (en)
French (fr)
Inventor
Peter A. Spiess
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Publication of EP1780163A1 publication Critical patent/EP1780163A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/06—Door or gate operation of sliding doors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes

Definitions

  • the invention relates to doors systems and, in particular, to an elevator door system comprising a door that is wound upon a vertical axis during an opening operation.
  • Each elevator door is generally formed from a stainless steel sheet or interconnected vertical rigid panels, typically manufactured from a metal.
  • the plurality of panels or sheet is wound onto and unwound from a vertical axis in the form of a motorised reel whereby the driving force from the motor is transmitted through the reel and onto the door to provide lateral movement thereof.
  • the diameter at which the outer layer of the door circumscribes the vertical axis continually changes. Accordingly, the angle at which the tangent of the outer layer intersects the plane of the guide channels continually changes. Therefore, during operation the door enters the guide channels at different angles.
  • the objective of the present invention is to improve the operation of the door system and thereby to reduce the stress on the door and the guide channels at the point where the door enters the guide channels. In so doing, the invention drastically reduces the noise generated during operation thereby improving passenger comfort and reduces the structural and aesthetic damage to the door and guide channels which inherently reduces the maintenance costs.
  • a door system comprising a reel, a door interconnect at a first end to the reel for winding and unwinding thereupon and one or more guide channels.
  • the reel is rotatably mounted on a lever which is pivotally mounted to a pivot axis.
  • the reel can pivot about the pivot axis to ensure that, during operation, the point at which the outer layer of the door engages/disengages with the penultimate door layer remains in the same general location with respect to the guide channels and accordingly, the angle (if any) at which the door enters the guide channels remains constant throughout operation.
  • the pivot axis is inline with a plane defined by the guide channels.
  • the lever is self-aligning to ensure that the point at which the outer layer of door engages/disengages with the penultimate door layer is always in the plane of the guide channels.
  • the door smoothly enters the guide channels along the plane thereof without changing direction.
  • the door system can further comprise a roller for engaging an outer layer of the door wound upon the reel.
  • resilient means such as a spring can be used to produce the required biasing force on the lever.
  • the reel is rotatable about a rotation axis and a radius of an outer surface of the reel from the rotation axis gradually increases from a minimum value to a maximum value with a radial step transition therebetween.
  • the height of the radial step is substantially equal to the depth of the door. Accordingly, upon being wound onto the reel, the diameter of the outer layer of the door gradually and smoothly increases without any step transitions which would otherwise cause noise and possibly damage.
  • Fig. 1 is a general perspective view of an elevator door system 1 according to the present invention incorporating a car door 2 which, in use, is used to control access to an elevator car (not shown) through a doorway from a landing within a building.
  • the door 2 is composed of a plurality of vertically aligned panels 4 each of which is preferably extruded from aluminium for its superior strength to weight ratio.
  • the panels 4 are bound at their upper and lower extremities by flexible belts 6 and guided in upper and lower guide channels 8.
  • the belts 6 are attached at one end to a reel 10 mounted at one side of the doorway, rotation of which is controlled by a motor 12 to open and close the door 2.
  • the opposing ends of the belts 6 are attached by cables 14 to a counter-reel 16 which is biased in a door closing direction by a closing weight 18.
  • the reel 10 and counter-reel 16 are contained and retained within opposing door jambs (not shown).
  • the door 2 is unwound from the reel 10 and guided along the guide channels 8 under the influence of the biasing force of the closing weight 18, and optionally by a closing force developed thereon by the motor 12, to close the doorway.
  • the motor 12 provides an opening force to overcome the biasing force of the closing weight 18 and the door 2 is guided along the guide channels 8 and drawn onto the reel 10.
  • the gravitational force acting on the closing weight 18 transmits a force through the counter-reel 16 and cables 14 which is sufficient to overcome the inertia of both the motor 12 and the door 2 to automatically close the door 2, thereby ensuring the safety of any passengers.
  • the reel 10 has a central axle 20 which is received within corresponding holes provided in an upper and a lower support lever 24.
  • the central axle 20 defines a rotation axis R about which the reel 10 can rotate to wind and unwind the door.
  • the support levers 24 are mounted on a stationary pivot axis P.
  • the rotation axis R is parallel to but horizontally displaced from the pivot axis P, and accordingly the reel 10 can swing about the pivot axis P.
  • Fig. 2 is a cross-section showing in greater detail the reel 10 of the elevator door system 1 of Fig. 1.
  • the reel 10 has a profile which generally corresponds to the shape of an apostrophe.
  • its radius from the rotation axis R gradually increases from a minimum value r 1 to a maximum value r 2 with a radial step transition 22 therebetween.
  • the height (r 2 - r 1 ) of the radial step 22 is substantially equal to the depth d of the door 2. Accordingly, upon being wound onto the reel 10, the diameter of the outer layer of the door 2 gradually and smoothly increases without any step transitions which would otherwise cause noise and possibly damage.
  • Fig. 3A shows the door 2 in an almost fully open position with the majority of the door panels 4 having been wound in layers onto the reel 10.
  • the door layers have been drawn with spaces therebetween however in practice it will be readily understood that the door layers are tightly wrapped around the reel 10.
  • the support levers 24 at any given instant during operation of the door system 1 assume a position which produces the least moment about the pivot axis P. Since the rotational force generated by the motor 12 can be neglected as it has no significant effect on the moment of the system 1 about the pivot axis P, the only external force giving rise to the moment is the biasing force exerted by the closing weight 18 on the cables 14 and the door 2. As shown in Fig. 3A, the biasing force of the closing weight 18 acts along, and the pivot axis P is positioned in, the plane of the guide channels 8 and consequently, during operation, the point E at which the outer layer of door 2 engages/disengages with the penultimate door layer is always in the plane of the guide channels 8. Hence, the door 2 is unwound from the reel 10 directly into the plane of the guide channels 8 without making an angle on entry into the guide channels 8. This smooth operation of the door system 1 reduces the noise generated and damage sustained by the door 2 during operation.
  • Fig. 4 is similar to Fig. 3 but illustrates an alternative embodiment of the present invention.
  • the door 2 is formed from a sheet of material, preferably stainless steel.
  • the depth d of the door 2 is substantially reduced and it is no so important that the reel 10 has a profile with a radial step 22 to accommodate the depth d of the door 2.
  • the reel 10 has a circular profile and the door 2 is attached thereto by a strap 30.
  • the door system 1 incorporates a closed-loop force transmission system, as described in our co-pending European Patent Application No. 05109847.3 , and the tension of the closed-loop force transmission system effectively acts on opposing sides of the wound door 2.
  • pivot axis P is shown in the plane of the guide channels 8, it need not be in this position. Indeed, instead of using the resultant moment about the pivot axis P to urge the outer layer of the wound door 2 into contact with the roller 26, a spring 28 can be used for this function.
  • the profiled reel 10 of the embodiment shown in Figs. 1-3B has been described specifically with reference to the present invention wherein the rotation axis R of the reel 10 is pivotal about a pivot axis P, it can be used independently of the present invention to improve the performance of a door system in which the rotation axis R is fixed.

Landscapes

  • Elevator Door Apparatuses (AREA)
  • Manufacture Of Motors, Generators (AREA)
EP06122347A 2005-10-26 2006-10-16 Door system Withdrawn EP1780163A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05110008 2005-10-26

Publications (1)

Publication Number Publication Date
EP1780163A1 true EP1780163A1 (en) 2007-05-02

Family

ID=35679370

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06122347A Withdrawn EP1780163A1 (en) 2005-10-26 2006-10-16 Door system

Country Status (7)

Country Link
US (1) US20070181270A1 (ko)
EP (1) EP1780163A1 (ko)
KR (1) KR20070045111A (ko)
CN (1) CN1955100A (ko)
AU (1) AU2006233186A1 (ko)
CA (1) CA2565204A1 (ko)
NO (2) NO20064878L (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016083041A1 (de) * 2014-11-26 2016-06-02 Thyssenkrupp Ag Fahrkorbtür

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8016016B2 (en) * 2008-11-07 2011-09-13 Mechoshade Systems, Inc. Trough shade system and method
CN103043517B (zh) * 2011-10-11 2015-03-25 通用电梯（中国）有限公司 一种电梯轿厢门装置
AT513942B1 (de) * 2013-01-22 2017-11-15 Htp High Tech Plastics Gmbh Vorrichtung zur Abdeckung einer Sichtöffnung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033199A1 (en) * 1980-01-15 1981-08-05 Glenn Robert Palmer Door structure

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US211890A (en) * 1879-02-04 Improvement in curtain-fixtures
US30878A (en) * 1860-12-11 And gibbons l
US896929A (en) * 1907-12-06 1908-08-25 Kinnear Mfg Co Support for rolling curtains or shutters.
US1797321A (en) * 1923-06-18 1931-03-24 Cahill John Rolling partition or closure
US1621717A (en) * 1925-08-29 1927-03-22 Acme Partition Company Coiling door
US1595234A (en) * 1925-12-02 1926-08-10 Peter H Kuyper Mounting for rolling screen construction
US3833045A (en) * 1972-11-17 1974-09-03 Celotex Corp Side coiling door
GB2096222B (en) * 1981-04-04 1984-11-21 Charles Hugh Gerald Window insulation system
US5332021A (en) * 1991-09-11 1994-07-26 Todd John M Flexible retractable door
EP0651127B1 (en) * 1993-08-05 1997-07-02 Sanwa Shutter Corporation Device for moving winding shaft in shutter used for building.
JPH11270089A (ja) * 1998-03-26 1999-10-05 Katsuaki Tomita 日除ロールスクリーン
BE1016275A3 (fr) * 2002-06-13 2006-07-04 Dynaco International Sa Dipositif a volet enroulable autour d'un tambour.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033199A1 (en) * 1980-01-15 1981-08-05 Glenn Robert Palmer Door structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016083041A1 (de) * 2014-11-26 2016-06-02 Thyssenkrupp Ag Fahrkorbtür
US10322909B2 (en) 2014-11-26 2019-06-18 Thyssenkrupp Ag Car door

Also Published As

Publication number Publication date
NO20064878L (no) 2007-04-27
CA2565204A1 (en) 2007-04-26
CN1955100A (zh) 2007-05-02
NO20070664L (no) 2007-04-27
KR20070045111A (ko) 2007-05-02
US20070181270A1 (en) 2007-08-09
AU2006233186A1 (en) 2007-05-10

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