EP1598516B1 - Door arrangement - Google Patents

Door arrangement Download PDF

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Publication number
EP1598516B1
EP1598516B1 EP04011529A EP04011529A EP1598516B1 EP 1598516 B1 EP1598516 B1 EP 1598516B1 EP 04011529 A EP04011529 A EP 04011529A EP 04011529 A EP04011529 A EP 04011529A EP 1598516 B1 EP1598516 B1 EP 1598516B1
Authority
EP
European Patent Office
Prior art keywords
engagement device
holder element
door arrangement
lower bar
door
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.)
Expired - Lifetime
Application number
EP04011529A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1598516A1 (en
Inventor
Tomas Hagel
Mikael Emanuelsson
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.)
Crawford Group AB
Original Assignee
Crawford Group AB
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 Crawford Group AB filed Critical Crawford Group AB
Priority to DE602004010789T priority Critical patent/DE602004010789T2/de
Priority to AT04011529T priority patent/ATE381659T1/de
Priority to EP04011529A priority patent/EP1598516B1/en
Priority to PCT/SE2005/000262 priority patent/WO2005111364A1/en
Priority to CN2005800194951A priority patent/CN1977088B/zh
Priority to PCT/SE2005/000689 priority patent/WO2005111365A1/en
Publication of EP1598516A1 publication Critical patent/EP1598516A1/en
Application granted granted Critical
Publication of EP1598516B1 publication Critical patent/EP1598516B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/13—Roller shutters with closing members of one piece, e.g. of corrugated sheet metal
    • 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
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • E06B2009/585—Emergency release to prevent damage of shutter or guiding device

Definitions

  • the present invention relates to a door arrangement, which comprises at least one flexible door screen movable between a closed position and an open position, and vice versa, and a lower bar arranged at the lower edge of the flexible door screen, wherein end portions of the lower bar are operatively connected to guides, arranged at opposite sides of a door way, by a releasable connecting element.
  • a building sliding door arrangement as shown in US-A-2002/0117271 and according to the preamble of claim 1 usually comprises a door leaf arranged to be operated between a closed position and an open position, and vice versa. Further, such a door arrangement generally comprises guide rails for guiding at least a lower bar attached to the door leaf between the closed and open position of the door arrangement.
  • the door arrangements of the abovementioned kind are provided with a lower bottom bar attached to the lower edge of the door leaf.
  • the end portions of such a lower bar are arranged slidable in the guide rails or attached to guide elements which are slidable operatively arranged in the guide rails.
  • the lower bar In order to achieve the desired release function, for instance caused by an accidental load, the lower bar has to be releasable from the guide rails or the guide elements.
  • Such a lower bar may be flexible or rigid.
  • such an arrangement may be a potential cause of accidental or unintended release of the lower beam from the guides or guide members due to applied wind loads. If the wind load is high, the curtain tends to deflect and accordingly the beam attached to the curtain may be bent, wherein the end portions of the beam tends to move inwardly in the longitudinal direction of the beam and thereby may cause an undesired release of the beam from the guide elements.
  • EP0508698A2 is an example of prior-art that relates to building sliding door arrangement, wherein a flexible beam is attached to the lower edge of a door panel.
  • the flexible beam is composed of superimposed strips of a resilient material, such as rubber with flexible metal strips disposed between the adjacent resilient strips.
  • each end of the beam is provided with a longitudinal open-ended slot and an extension of a guide member is mounted within each slot in a manner such that the extension can slide in the slots in a direction parallel to the plane of the door panel and will be released from the slots if the beam is subjected to a substantially accidental impact.
  • the relative movement between the guide member and the beam is achieved by deflection of the entire beam caused by the applied accidental load.
  • Door arrangements with a flexible curtain suitably has a substantially rigid lower beam for proper stretching of the curtain.
  • the stretching of the curtain is often preferred in order to give the door arrangement an attractive appearance and a high quality impression.
  • the stretching of the door leaf is an advantage to avoid unwanted deflection of the curtain due to wind loads, which may e.g. cause an air leakage between the door leaf and the surrounding structure.
  • prior art lower bar connections often is designed to withstand a specific predetermined load, such as potential wind loads. This may often restrain the need for adapting the predetermined load to existing local conditions.
  • An object of the invention is to improve stretching of a flexible door screen of a door arrangement.
  • Another object of the invention is to provide a door arrangement which is self repairing.
  • Yet another object of the invention is to provide a release function for a substantially stiff lower bar of a door arrangement.
  • an object of the invention is to enable an adjustable threshold for a release load of a door arrangement lower bar.
  • a first aspect of the invention relates to a door arrangement, which comprises at least one flexible door screen movable between a closed position and an open position, and vice versa, and a lower bar arranged at the lower edge of the flexible door screen, wherein end portions of the lower bar are operatively connected to guides, arranged at opposite sides of a door way, by a releasable connecting element, said connecting element comprises an engagement device and a holder element, said engagement device is held resiliently by the holder element for, when exposed to loading exceeding a threshold value, enabling a translation between the engagement device and the holder element, in a direction substantially perpendicular to a plane defined by said flexible door screen in its closed position and wherein the holder element is arranged resiliently movable in a substantially vertical direction.
  • the translation between the engagement device and the holder element is such that the end portions of the lower bar is disengaged from the operatively connection with the guides when exposed to a substantially horizontal impact force.
  • the translation is essentially directed in the same direction as the applied impact force, wherein a release of a substantially stiff lower bar being feasible.
  • the use of a substantially stiff lower bar provide for a proper stretching of the flexible door screen. Further, the use of a substantially stiff lower bar provides for a reduced risk of air leakage and unintended release of the flexible door screen due to wind loads.
  • the direction of translation for release of the lower bar also enabling a reconnection of the lower bar in a direction substantially perpendicular to the plane defined by the flexible door screen in its closed position.
  • a reconnection is preferably arranged in a self repairing manner, which may save time for service and reduce obstruction of the door arrangement.
  • the engagement device comprises at least one path along which the holder element is guided relative to the engagement device during said translation, said path comprises a first sloping surface in order to establish a threshold for release of the holder element and the engagement device.
  • the path preferably comprises a second sloping surface outside the first sloping surface, said second sloping surface has an inclination less than an inclination of the first sloping surface in order to establish a threshold for reconnection less than the threshold for release.
  • the inclination of the sloping surfaces should within the context of this application mean, any surface with a curved, inclined or divergent extension in relation to the direction of translation between the engagement device and the holder element.
  • This arrangement with a first sloping surface providing a threshold for the release of the lower bar and a second sloping surface providing a threshold for reconnection of the lower bar, enabling a simple and robust operatively connection of the lower bar to each one of the guide.
  • the shape of the engagement device, and especially the shape of the sloping surfaces, is considered important for enabling a suitable performance of the release and reconnection of the lower bar.
  • the holder element is arranged resiliently movable in a substantially vertical direction. Hence, the vertical movement due to the applied impact force allows an opening of the holder element, wherein the engagement device is free to translate relatively to the holder element in the preferred direction perpendicular to the door screen.
  • the resilient effect of the holder element may be achieved in several ways, for instance by spring elements, elastic materials or the like.
  • a resilient stiffness for holding the engagement device by the holder element is adjustable.
  • the adjustment of the resilient stiffness enables for setting a predetermined threshold of the force needed for the release of the lower bar.
  • the magnitude of such a predetermined threshold may be varied in order to adapt the release of the lower bar to existing local conditions.
  • the same design of connecting element may be used for several kinds of door arrangements and for several applications of such a door arrangement.
  • the holder element has at least one rod member extending in the longitudinal direction of the bottom bar, and overlapping part of the engagement device.
  • the use of a rod member provides for a simple and robust resilient holder element, which comprises few components.
  • the rod member is preferably made of a metal material and in particular a spring steel.
  • a protruding length of the rod member beyond a support element is adjustable and hence the resilient stiffness of the protruding length of the rod member is adjusted, by the fact that the support member is movable and securable around the rod member.
  • the resilient holding of the engagement device preferably is arranged to be adjustable between 10-200 kg, preferably 20-170 kg, and in particular 30-150 kg.
  • the engagement device is intermediately engaged between two rod members forming part of the holder element.
  • a translation between the engagement device and the holder element for reconnection is achieved by a reconnecting device during an opening and/or closing cycle of the door arrangement.
  • a reconnecting device during an opening and/or closing cycle of the door arrangement.
  • said reconnecting device is arranged as a funnel shaped guide portion and provided along said guides.
  • the lower bar comprises the holder element.
  • the engagement device is slidably attached to the guide or any intermediate portion between the guide and the lower bar.
  • the lower bar comprises the engagement device, wherein the corresponding holder element is associated with the guide.
  • the door arrangement 1 comprises at least one flexible door screen 5 movable between a closed position and an open position, and vice versa. Further the door arrangement 1 comprises a lower bar 7 arranged at the lower edge of the flexible door screen 5, wherein end portions of the lower bar 7 are operatively connected to guides 3, arranged at opposite sides of a doorway, by a releasable connecting element 9, as shown in figures 2-4.
  • the connecting element 9 comprises an engagement device 11 and a holder element 13, said engagement device 11 is held resiliently by the holder element 13 for enabling a translation between the engagement device 11 and the holder element 13, in a direction substantially perpendicular to a plane defined by said flexible door screen 5 in its closed position.
  • the flexible door screen 5 is preferably wound on a winding roller 15 which is mounted rotably at the door opening. Further, lateral portions 23 of the flexible door screen 5 is provided with protruding portions 17 adapted for being guided by the guide 3 and holding the flexible door screen 5 between said guides 3.
  • the winding roller 15 is connected rotably to a driving device which comprising e.g. a motor (not shown).
  • the driving device, and hence the winding roller 15, is arranged to be able to move along with a forward and backward motion.
  • the door arrangement 1 according to the embodiment shown in figures 2-4 has at least one slit 19 in the longitudinal direction of the flexible door screen 5.
  • the slit 19 is provided with a reconnectable portion, wherein said reconnectable portion being adapted to engage the door leaf slit 19 and disengage when exposed to impact exceeding a threshold value.
  • said reconnectable portion comprises the reconnectable portion a zipper.
  • the reconnectable portion is arranged reconnectable during an opening and closing cycle of the roller door arrangement 1.
  • the flexible door screen may be provided without the slit 19. Furthermore, the lateral end portions of the flexible door screen either may be guided in the guides or may be free from the guides.
  • the lower 7 bar is operatively associated with the guides 3 in a releasable manner.
  • the lower bar 7 is connected to the guides 3 by an intermediate element 21 attached to a lower part of a lateral portion 23 of the flexible door screen 5.
  • the intermediate element 21 is formed as a metal plate, wherein one edge of the metal plate is provided with a protruding portion guided in the guide 3.
  • the intermediate element 21 is preferably pivotable engaged by the corresponding lateral portion 23 of the flexible door screen 5.
  • the engagement device 11 is attached to the intermediate element 21 and the holder element 13 is attached to the lower bar 7.
  • the holder element 13 comprises two resilient rod members 25 extending in the longitudinal direction of the lower bar 7.
  • the engagement device 11 is in a preferred embodiment formed as one piece comprising recesses 27 arranged at opposite sides, for receiving the holder element rod members 25.
  • Each one of the recesses 27 protrudes in the longitudinal direction of the lower bar 7 and forms part of a path 29 for guiding the rod members 25 during translation relatively to the engagement device 11 in a direction substantially perpendicular to a plane defined by the flexible door screen 5 in its closed position.
  • the path 29 comprises a first sloping surface 31 closest to the center of the engagement device 11 and a second sloping surface 33 located outside the first sloping surface.
  • the second sloping surface 33 has a shape and an inclination ⁇ that makes the force needed for the reconnection less than the force needed for release of the connecting element 9. Accordingly, the first sloping surface 31 has an inclination ⁇ that is greater than ⁇ relatively to the direction of translation between the engagement device 11 and the holder element 13.
  • the inclination ⁇ and ⁇ of said sloping surfaces 31, 33 should within the context of this application mean, any surface with a curved, inclined or divergent extension in relation to the direction of translation between the engagement device and the holder element.
  • the engagement device 11 preferably has an symmetrical form that allows translation in both directions perpendicular to the plane defined by the flexible door screen 5 in its closed position.
  • the engagement device 11 has two paths 29 at each side enabling guiding of the holder element rod bars 25 in two directions.
  • the lower bar 7 If the lower bar 7 is exposed to an substantially horizontal impact, the lower bar 7, and hence the holder element 13, tends to translate relative to the engagement device 11.
  • the translation of the holder element 13 in relation to the engagement device 11 is achieved by the way of guiding the holder element rod members 25 along each corresponding path 29 of the engagement device 11, from the engaged position towards a disengaged position.
  • the guiding of the rod members 25 along each path 29 of the engagement device 11 is established by arranging the rod members 25 in a resilient manner.
  • a resilient effect is achieved by attaching the rod members 25 between two support elements 35, 37.
  • the rod members 25 protrudes beyond the support element 35 located closest to the end portion of the lower bar 7, wherein the length of protrusion gives the stiffness of the resilient effect.
  • the lower bar 7 comprises a guiding element 39 which is formed to include the holder element 13.
  • the guiding element 39 forces the holder element rod members 25 to move in a substantially vertical direction, but not in a horizontal direction. Thereby, the rod members 25 translate along the sloping surfaces 31, 33 of the engagement device 11 during excitation of an impact force.
  • the distance between the support elements is variable in the longitudinal direction of the lower bar 7, in order to adjust the protruding length of the rod members 25, wherein the stiffness of the resilient effect may be set to a predetermined threshold value.
  • the support element 35 closest to the end portion of the lower bar 7 is arranged slidable along the rod members 25. Further, the adjustment of the support element 35 closest to the end portion of the lower bar 7 is operated by a rotatable threaded rod 41 which is arranged in threaded engagement with said support element 35. A first end of the threaded rod 41 is attached in a freely rotatable way, for instance by locking washers, to the support element 37 furthest away from the end portion of the lower bar 7.
  • the distance between the two support elements 35, 37 is adjusted by rotating the threaded rod 41, which second end being accessible through a hole in the end portion of the lower bar 7 (not shown).
  • the second end of the threaded rod is preferably provided with an interface adapted for a conventional tool, such as a hex socket wrench or the like.
  • the position of the support element 35 closest to the end portion of the lower bar 7 is measurable through a hole provided in the end surface of the lower bar 7 (not shown).
  • a holder element 13 threshold may be set to a predetermined value corresponding to a force needed for the release of the lower bar 7 from the operatively connection to the guides 3. It is obvious for a person skilled in the art that the position of the support element 35 can be determined in several ways, for instance the lower bar 7 may be provided with a direct visual access to the support element 35.
  • the door arrangement 1 is provided with a connecting element 9 reconnecting device 43 attached to the guides 3 at opposite sides of the door way.
  • the reconnecting device 43 is formed as a guide with an enlarged funnel shaped entrance portion 45.
  • the connecting element 9 passes through the funnel shaped entrance portion 45.
  • the passage through the reconnecting device 43 applies a force that reconnects the connecting element 9.
  • the reconnection of the holder element 13 and the engagement device 11 is achieved by displacement of the holder element rod bars 25 in a substantially vertical direction.
  • the holder element rod members 25 is initially guided along the above mentioned second sloping surface 33 of the engagement device path 29, which second sloping surface 33 serves for separation of the distance between the rod members 25 due to the applied force from the reconnecting device 43 during closing of the door arrangement.
  • the guiding of the holder element 13 along the engagement device 11 allows the rod members 25 to be brought into the connected position, holding the engagement device 11.
  • Figure 7a-7c shows in a schematic way how the holder element 13 and the engagement device 11 is separated by a substantially horizontal translation. According to figure 7a it is shown how the lower bar 7 is exposed to a substantially horizontal impact force, or a substantially horizontal impact component force, for instance due to a accidental collision with a vehicle or the like. The applied impact force may cause a translation between the holder element 13 and the engagement device 11 in a direction substantially perpendicular to the flexible door screen 5.
  • Figure 7b shows the resilient rod members 25 in a vertical expanded position, established by the initial translation between the holder element 13 and the engagement device 11 along the first sloping surface 31 of the recesses 27 of the engagement device 11.
  • Figure 7c shows the holder element 13 and the engagement device 11 in a released state from each other. In the released state the resilient rod members 25 are brought into a neutral position.
  • Figure 8a-8c shows in a schematic way how the holder element 13 and the engagement device 11 is reconnected after an accidental or intended release of the lower bar 7.
  • the reconnection of the holder element 13 and the engagement device 11 is achieved by the reconnection device 43 during a closing operation of the door arrangement 1, in accordance with the abovementioned.
  • Figure 8a shows the engagement device 11 and the holder element 13 guided into the reconnection device 43 during the closing operation of the door arrangement 1.
  • a force is applied to the lower bar 7, and hence the holder element 13, by the funnel shaped entrance portion 45 of the reconnecting device 43.
  • the engagement device 11 is supported by the guide 3 in order to establish a reacting force.
  • the force applied may cause a displacement of the holder element rod members 25 in a substantially vertical direction.
  • the engagement device 11 is lead towards an intermediate position between the rod members 25 by further closing of the door arrangement 1.
  • Figure 8b shows the holder element rod members 25 in a vertical expanded position, established by the initial translation between the holder element 13 and the engagement device 11 along the second sloping surface 33.
  • Figure 8c shows the reconnected position of the engagement device 11 and the holder element 13, wherein the lower bar 7 is operatively reconnected to the guides 3. Further, the reconnection device preferably is located in such a position that the lower bar 7 has reached its upper position when completely passed the funnel shaped entrance portion 45 of the reconnection device 43.
  • the resilient holder element 13 may be provided in several ways.
  • the holder element 13 may be formed as a spring loaded part that holding the engagement device 11.
  • Such an arrangement may be established by a vertically spring loaded sphere or tap, wherein the resilient effect may be adjusted by setting the spring force.
  • the resilient effect may be established by hinged or flexible spring loaded parts, such as rods holding the engagement device 11 intermediately by means of a clamp force.
  • the location of the engagement device 11 and the holder element 13 may be switched, such as the engagement device 11 being attached to the lower bar 7 and the holder element 13 being attached to the lateral portions 23 of the flexible door screen 5.
  • door arrangement 11 according to the invention may be used for either manually operated doors and machinery operated doors.
  • flexible door screen should be understood to mean, within the context of this invention, any flat element able to form a closure or a separation and able to roll around an axis or to be folded, intended for closing a bay or forming a separating partition.
  • the invention shall not be interpret to only include the above described embodiments, but also combinations of the different embodiments forming alternative embodiments within the scope of the appended claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Lock And Its Accessories (AREA)
  • Seal Device For Vehicle (AREA)
EP04011529A 2004-05-14 2004-05-14 Door arrangement Expired - Lifetime EP1598516B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE602004010789T DE602004010789T2 (de) 2004-05-14 2004-05-14 Türanordnung
AT04011529T ATE381659T1 (de) 2004-05-14 2004-05-14 Türanordnung
EP04011529A EP1598516B1 (en) 2004-05-14 2004-05-14 Door arrangement
PCT/SE2005/000262 WO2005111364A1 (en) 2004-05-14 2005-02-25 Roller door arrangement
CN2005800194951A CN1977088B (zh) 2004-05-14 2005-02-25 卷帘门装置
PCT/SE2005/000689 WO2005111365A1 (en) 2004-05-14 2005-05-16 Door arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04011529A EP1598516B1 (en) 2004-05-14 2004-05-14 Door arrangement

Publications (2)

Publication Number Publication Date
EP1598516A1 EP1598516A1 (en) 2005-11-23
EP1598516B1 true EP1598516B1 (en) 2007-12-19

Family

ID=34925006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04011529A Expired - Lifetime EP1598516B1 (en) 2004-05-14 2004-05-14 Door arrangement

Country Status (5)

Country Link
EP (1) EP1598516B1 (zh)
CN (1) CN1977088B (zh)
AT (1) ATE381659T1 (zh)
DE (1) DE602004010789T2 (zh)
WO (2) WO2005111364A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101368471B (zh) * 2007-08-16 2012-05-30 小松电机产业株式会社 帘板式卷帘门
US20130042981A1 (en) * 2011-08-19 2013-02-21 Cornell Ironworks Enterprises Assembly for Insulating a Door Curtain
CN102364026B (zh) * 2011-10-29 2013-06-19 无锡捷阳节能科技有限公司 可自动修复的快卷门导轨、滑块结构
DE102017105514A1 (de) * 2017-03-15 2018-09-20 Fischer Automotive Systems Gmbh & Co. Kg Rollo
HRP20230684T1 (hr) * 2017-05-31 2023-10-13 Seuster Kg Roletna vrata

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4453584A (en) * 1981-05-22 1984-06-12 Steele Richard S Sealing system for movable insulation
US5139074A (en) 1991-04-03 1992-08-18 Kelley Company Inc. Industrial door having flexible and releasable beam
US6698490B2 (en) * 1996-05-28 2004-03-02 Rite-Hite Holding Corporation Release mechanism for industrial doors
CA2210283C (en) * 1997-07-11 2003-01-07 M & I Door Systems Limited Roll-up door with low friction edges
BE1014506A3 (fr) * 2001-12-03 2003-11-04 Dynaco Internat Dispositif a volet avec element de reintroduction.
CN2527693Y (zh) * 2002-04-04 2002-12-25 上海森林特种钢门有限公司 卷闸导轨升降装置
KR20030095870A (ko) * 2002-06-15 2003-12-24 주식회사 포스콘 가요성 시트 개폐장치

Also Published As

Publication number Publication date
DE602004010789D1 (de) 2008-01-31
EP1598516A1 (en) 2005-11-23
DE602004010789T2 (de) 2008-12-04
CN1977088A (zh) 2007-06-06
ATE381659T1 (de) 2008-01-15
WO2005111364A1 (en) 2005-11-24
CN1977088B (zh) 2010-12-15
WO2005111365A1 (en) 2005-11-24

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