EP1475508B1 - Vertically movable partitions - Google Patents

Vertically movable partitions Download PDF

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Publication number
EP1475508B1
EP1475508B1 EP20040252489 EP04252489A EP1475508B1 EP 1475508 B1 EP1475508 B1 EP 1475508B1 EP 20040252489 EP20040252489 EP 20040252489 EP 04252489 A EP04252489 A EP 04252489A EP 1475508 B1 EP1475508 B1 EP 1475508B1
Authority
EP
European Patent Office
Prior art keywords
trains
members
wall
secured
diamonds
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
EP20040252489
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1475508A3 (en
EP1475508A2 (en
Inventor
Miles E. Peterson
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.)
Railquip Enterprises Inc
Original Assignee
Railquip Enterprises Inc
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
Priority claimed from US10/430,528 external-priority patent/US6808000B1/en
Priority claimed from US10/806,883 external-priority patent/US7156142B2/en
Application filed by Railquip Enterprises Inc filed Critical Railquip Enterprises Inc
Publication of EP1475508A2 publication Critical patent/EP1475508A2/en
Publication of EP1475508A3 publication Critical patent/EP1475508A3/en
Application granted granted Critical
Publication of EP1475508B1 publication Critical patent/EP1475508B1/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
    • E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
    • E06B9/0692—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising flexible sheets as closing screen
    • 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
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/92—Doors or windows extensible when set in position
    • E06B3/928—Doors or windows of the lazy tongs type
    • 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
    • E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
    • E06B9/0607—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position
    • E06B9/0615—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position characterised by the closing elements
    • E06B9/063—Bars or rods perpendicular to the closing direction
    • 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
    • E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
    • E06B9/0607—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position
    • E06B9/0615—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position characterised by the closing elements
    • E06B9/0638—Slats or panels
    • 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
    • E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
    • E06B9/0607—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position
    • E06B9/0646—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position characterised by the relative arrangement of the closing elements in the stored position
    • E06B9/0676—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position characterised by the relative arrangement of the closing elements in the stored position stored in a stacked configuration

Definitions

  • the present invention relates to partitions which may be in the form of mechanical curtains or partition walls, and more particularly to vertically movable partitions for use within buildings, for example, to cordon off areas, as required, to prevent public access, for crowd control, or for reconfiguring and sectioning usable space in the building.
  • Security partitions in the form of security gates are well known and may take the form of horizontally sliding bar systems, for example to close off open fronts of shops in shopping centers or to be moved across entrance ways to shops on streets.
  • These types of movable security gates usually require storage space beside the area being protected, to accommodate the gate components when not in use.
  • existing "roll-up" security gates are stored in ceiling space when not in use. This type of gate is severely limited in width and height as the roller can only be supported at its ends and cannot deflect under the load of the gate.
  • U.S. Patent No. 5,062,464 of Miles Peterson, issued November 5, 1991 describes and illustrates a wall partition, which uses a pantograph type of construction to provide a rigid wall section, which is vertically collapsible and movable to a storage position.
  • Movable wall partition systems have similar problems of storage and structural support requirements and the Peterson vertically movable wall partition avoids those problems by providing ceiling storage for the wall partitions and a single permanent location for all of the panels so that the loads imposed on the building support structure do not vary because of lateral movement of the panels.
  • this design of the wall system allows the partition to be of any width or height as it is lifted and supported at multiple points across its width. This is made possible as the partition is folded up rather than rolled up.
  • pantograph structure as suggested by the Peterson construction is similar to that for instance found in baby gates in which a series of elongated members are pivotally linked together in spaced fashion to provide a series of similar diamonds along the length of the gate.
  • a pair of members of similar size are pivotally linked at their midpoints.
  • One pair of their ends are pivotally linked to the ends of a further corresponding pair of members of similar length similarly pivoted at their midpoint, and so on.
  • the midpoints of the members are longitudinally aligned and form opposed longitudinal apexes of diamond shapes; the other opposed corners of these diamonds are formed by the pivotally secured ends of adjacent pairs of intersecting members, and are the lateral apexes.
  • the pantograph structure expands and contracts longitudinally.
  • the pantograph structure in such applications is useful because it causes forces applied longitudinally, in the direction of expansion and contraction of the pantograph, to be transmitted evenly throughout all of the members of the pantograph structure.
  • all of the apexes of the diamonds formed by the points of intersection of the members, as the structure is contracted, will arrive at their final, fully contracted position at the same time, meaning that the longitudinal apexes of the diamonds at one end of the pantograph structure, which are moving towards the other end during contraction, will move at a much greater speed than the apexes of the diamonds at the other end.
  • the present invention provides a partition wall according to claim 1. Preferred features are defined in the dependent claims.
  • the partition is in the form of a wall.
  • a plurality of panels, instead of bars, are provided, each panel being secured to a pair of corresponding members in adjacent trains.
  • the panels are secured to corresponding pairs of opposed sides of the diamonds.
  • Means are provided to raise and lower the trains at a similar rate.
  • the pantographs are contracted when the wall is in a storage position and the elongated when the wall is in down position.
  • the panels form a vertical wall when the pantographs are elongated in down position.
  • similar pairs of elongated members intersect and are secured pivotally together at a central point between their ends, that point being on a longitudinal center line of each member, to form adjoining, longitudinally disposed apexes of adjacent diamonds.
  • Ends of these pairs of intersecting members are pivotally connected to the ends of similar pairs of intersecting members at points which are laterally offset to the outside of that center line, to form at these ends laterally disposed apexes of the diamonds, so that when the trains are contracted the longitudinal apexes of each diamond are drawn together and the laterally disposed apexes are more separated, and when the trains are elongated the longitudinal apexes of each diamond become more separated and the laterally disposed apexes are drawn together. Also, in each train, similar pairs of elongated members make up one pair of opposed sides of diamonds and are spaced about similar single members making up the other opposed pair of sides of the diamonds. The panels are secured only to the spaced pairs of elongated members along the length of the train.
  • the partition according to the present invention has many advantages. Because its components move vertically rather than horizontally, storage space is not required to the side of the area within which the wall operates, since the wall folds and stores above the area in question. Furthermore, because the partition does not move horizontally, the loads imposed on the support structure are constant. Also, the height and width restrictions present with conventional roll-up security gates are avoided since the wall of the present invention may be lifted and supported at multiple points across its width.
  • FIG. 1 there is illustrated a mechanical curtain 2 (not in accordance with the present invention), in partially lowered (closed) position.
  • the curtain as illustrated is particularly useful as a security gate.
  • Curtain 2 is formed from a plurality of similar pantograph trains 4, longitudinally laterally spaced to form a plane of the curtain.
  • Each train has an upper end 6 and a lower end 8, and is composed of elongated members 10, which form, in each train 4, aligned rows of diamonds 12.
  • Similar pairs of elongated members 10 intersect and are secured pivotally together centrally between their ends as illustrated, to form vertically disposed longitudinal apexes 14 of diamonds 12.
  • Corresponding ends of these pairs of intersecting members 10 pivotally connect to the ends of other pairs of similar intersecting members 10 to form at these ends laterally disposed apexes 16.
  • FIGURE 2a when trains 4 are elongated in the longitudinal direction, the longitudinal apexes 14 of each diamond 12 are more separated and the laterally disposed apexes 14 are drawn together, while, as can be seen in FIGURE 2c , when the trains are contracted, the longitudinal apexes 14 of each diamond 12 are drawn together and the laterally disposed apexes 16 are more separated.
  • Cooperating pairs of intersecting elongated members are preferably laterally offset on opposite sides of the apexes 14 and 16 by central spacers 18 ( FIGURE 4 ) so that they do not obstruct each other during opening and closing operation of the curtain.
  • a longitudinally oriented aperture 20, of the longitudinal apexes 14 the function of which will be described subsequently, may be provided in each spacer 18.
  • Each pantograph train 4 operates with its diamonds 12 being in a plane, which is at a 90° angle to the partition plane, as can be seen in FIGURE 1 .
  • Extending between adjacent trains 4 and secured to corresponding members 10 of adjacent trains are a plurality of spaced bars 22.
  • Notches 24 are provided along interior edges of members 10 in each diamond, to receive portions of corresponding bars in opposite members 10 of the diamonds, when the trains are in their most elongated position.
  • a fabric 25 (chain-line) may be secured about bars 22 over a portion or all of the intended surface area of the partition, the fabric for example being interwoven through the bars over one side of the diamonds 12 of the trains, as illustrated.
  • a drums 30 are provided with cables 28, one end of each of which is wrapped around its corresponding drum.
  • Each cable passes over a corresponding sheave or pulley 26, and its other end may be operatively connected to a lower end 8 of its corresponding train 4, as illustrated, or to a bar 22 extending between adjacent trains 4 at their lower end 8.
  • the cables may extend vertically downwardly from sheaves 26 through aperture 20 in spacers of the longitudinal apexes 14 and be secured to the lower longitudinal apex 14 of its corresponding train 4.
  • bars 22 may be mounted so as to extend outwardly towards adjacent trains at longitudinal apexes 14.
  • the cables 28 may be looped around a pulley 31 (phantom, FIGURE 3 ) with the free end of the cable appropriately connected above the partition, to provide a double purchase arrangement for raising and lowering the partition.
  • An appropriate drive means 33 FIGURES 2a, 2b, 2c ) for drums 30 is provided so that by unwinding and winding each cable 28 in a similar manner with respect to drums 30, the pantographs are respectively elongated to close or contracted to open the partition.
  • an appropriate conventional lock mechanism 32 ( FIGURES 2a and 2b ) may be provided, for example secured on or in an appropriate portion of the floor below the partition, to cooperate with lock mechanism 34 secured, to lower end 8 of train 4.
  • FIGURES 5a, 5b and 5c are schematic side elevation views of an alternative embodiment of partition 2 (not in accordance with the present invention).
  • the trains 4 are pivotally secured to a wall or other support 40 at the upper ends 42 of the upper most elongated members 10 as illustrated.
  • the center line of trains 4 along the longitudinal apexes 14 progressively moves away from support 40 until, when the partition is in open position as illustrated in FIGURE 5c , those longitudinal apexes 14 have moved their maximum distance away from support 40 and are preferably positioned below sheaves 26.
  • FIGURES 6 , 7 and 8 there is illustrated an alternative construction of partition 2 in which each elongated member 10 of train 4 is provided with a jog 46 as illustrated. Opposite ends of 48 and 50 of these members, on either side of jog 36, are parallel. As can be seen in FIGURES 7 and 9 , pairs 10a of such members 10, on which bars 22 outwardly extend in opposite directions, the members being similarly oriented and positioned, are spaced beside each other and make up one opposing pair of sides of diamonds 12, while similar elongated single members 10b, to which no bars 22 are secured make up the other opposing sides.
  • FIGURE 8 When the partition is in elongated, closed orientation, ( FIGURE 8 ) this construction permits the bars to be in vertical orientation, albeit, again for reasons of balance, staggered on opposite sides of the longitudinal axis of the partition trains 4 as illustrated. (The embodiment of partition illustrated in FIGURES 1 to 5 , prevents the bars from being in vertical alignment.)
  • the embodiment of train construction illustrated in FIGURES 6 to 8 requires inner members 10b to have no bars secured to them so that the bars secured to members 10a of a particular diamond 12 will not bear against cooperating, opposed members 10b in that diamond during the contraction of the trains.
  • cables 28 are illustrated as passing through apertures 52 centered in the lowest bars 22 extending between longitudinal apexes 14 of trains 4.
  • additional horizontally disposed subsets of bars 56 may be provided as required, extending between trains 4, for aesthetic or functional purposes.
  • each extension 60 is laterally disposed in the plane of each diamond 12, from each laterally disposed apex 16.
  • the end of each extension 60 is secured by appropriate conventional means to slide up and down within a corresponding track 62.
  • cables 28 lie along one edge of each pantograph train 4, as illustrated, and are secured at its free end to their lowest extension 52.
  • Track 62 may be supported by existing structures such as walls or posts, or may be free standing.
  • a fabric 25 may also be fitted over bars 22 as desired, for purposes such as decoration, obscuring or preventing visibility through the partition, or other functions.
  • This fabric may for instance be a type of Kevlar (trademark) cloth which is bullet proof or may be solar type cloth which has solar heat control or energy creation applications (i.e. which is made of solar cell material that can convert light energy into electrical energy).
  • FIGURE 12 an arrangement of partition, similar to that of FIGURE 11 but without any fabric on it, is illustrated in side elevation view, at a position in mid travel between its open and closed positions.
  • FIGURE 13 a more detailed view, again from a side elevation perspective, of the partition of FIGURE 11 is illustrated, on which fabric 58 is illustrated.
  • the partition of the present invention is relatively simple to construct and operate, and may readily be made visually appealing, while having all of the above mentioned advantages over prior art security gates and the like.
  • FIGURE 14 there is illustrated a partition wall 72 in accordance with the present invention in an intermediate position between an upper, storage position and a down position where the wall is in vertical orientation ( Figures 16 and 18 ).
  • a plurality of similar trains 74 of elongated members 76 are provided, the members 76 of each train 74 arranged to form a single pantograph 78 forming longitudinally aligned rows of diamonds 80 ( Figure 15 ). While two trains have been illustrated in Figure 14 , any number of trains may be spaced laterally to form a wall of appropriate width. These trains lie in the vertical plane of the wall and are oriented so that the diamonds 80 of the pantographs lie and operate in a plane at a 90° angle to that wall plane.
  • a plurality of panels 82 are provided, secured to members 76 as will be discussed in more detail hereinafter. Each panel 82 is secured to a pair of corresponding members 76 in adjacent trains, as illustrated. The panels are secured to corresponding pairs 84 of opposed sides of the diamonds.
  • An appropriate means to move the wall panels 82 into storage position or into down position is provided in the form of a power driven line shaft 86 to which drums 88 are secured.
  • One end of each of cables 90 is wrapped around a corresponding drum 88.
  • Each cable 90 passes over a corresponding sheave or pulley 92 and its other end is for example operatively connected to a lower end 94 of its associated train 74, as illustrated, or to a bar (not illustrated) extending between adjacent trains 74 at their lower ends 94.
  • Corresponding ends 104 of these pairs 96 of intersecting members 76 are pivotally connected to the ends 104 of similar pairs of intersecting members 76 at points 105 and 106 respectively, which points are laterally offset to the outside of center lines 100, to form, at these ends, laterally disposed apexes 108 of the diamonds 80, so that, when the train 74 are contracted, the longitudinal apexes 102 of each diamond 80 are drawn together and the laterally disposed apexes 108 are more separated, and when the trains 74 are elongated, the longitudinal apexes 102 of each diamond 80 become more separated and the laterally disposed apexes 108 are drawn together.
  • each of the trains 74 similar pairs 76a and 76b ( Figure 14 ) of elongated members, making up one pair of opposed sides of diamonds 80, are spaced about similar single members 76c, which members make up the other opposed pair of opposite sides of the diamonds.
  • the panels 82 are secured only to the spaced pairs of elongated members 76a and 76b, along the length of the train. They are not secured directly to single members 76c.
  • each panel 82 is secured to one of the pairs of parallel elongated members making up one pair of opposed sides of diamonds, say member 76a, and confronting member 76b from the adjacent similar pair of parallel elongated members, members 76a and 76b in this context being in separate, but adjacent, trains 74.
  • the panels 82 do not interfere with the operation of single members 76c, or vice versa, when the pantographs are moved between contracted (storage) and down positions.
  • the partition wall construction according to this aspect of the present invention permits pairs of panels to be secured, in spaced fashion, as illustrated in Figure 14 , to these confronting, elongated members 76a and 76b.
  • the dead air space in the space between these panels provides sound or heat insulation.
  • that space may be filled, for example, with insulation material (not shown).
  • the panels may be made of any suitable material, for example, metal, plastic or composite material. Some of the panels may be of transparent material, and applied so as to provide a completely transparent wall or a wall with window sections in it.
  • the wall may be as wide as desired, by adding appropriate numbers of similar trains 74 of elongated members 76, and associated panels 82 in adjacent fashion.
  • the partition wall construction according to the present invention is both simple and economical to construct and easy to operate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Fencing (AREA)
  • Load-Bearing And Curtain Walls (AREA)
  • Building Environments (AREA)
  • Finishing Walls (AREA)
EP20040252489 2003-05-06 2004-04-29 Vertically movable partitions Expired - Lifetime EP1475508B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US430528 1995-04-27
US10/430,528 US6808000B1 (en) 2003-05-06 2003-05-06 Vertically movable security partition
US10/806,883 US7156142B2 (en) 2004-03-23 2004-03-23 Vertically movable partition walls
US806883 2004-03-23

Publications (3)

Publication Number Publication Date
EP1475508A2 EP1475508A2 (en) 2004-11-10
EP1475508A3 EP1475508A3 (en) 2007-06-27
EP1475508B1 true EP1475508B1 (en) 2013-09-18

Family

ID=32994002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040252489 Expired - Lifetime EP1475508B1 (en) 2003-05-06 2004-04-29 Vertically movable partitions

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EP (1) EP1475508B1 (ja)
JP (1) JP4336614B2 (ja)
AU (1) AU2004201914B2 (ja)
CA (1) CA2465433C (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2112317A3 (en) * 2008-04-23 2012-03-28 Jørn Krab Holding APS Motorized coverings for building openings
PT2284351T (pt) * 2008-05-02 2016-07-13 Amiserru Sl Porta de abertura rápida de painel duplo
US8302654B2 (en) * 2009-07-30 2012-11-06 Railquip Enterprises Inc. Vertically collapsible weather resistant barrier for opening in a building envelope
US8327905B2 (en) 2010-10-01 2012-12-11 Railquip Enterprises Inc. Vertically collapsible barrier with improved sealing
US9045935B2 (en) 2012-10-01 2015-06-02 Railquip Enterprises Inc. Vertically folding wall partition
ITUB20161218A1 (it) * 2016-03-01 2017-09-01 Ima Spa Apparato di chiusura per varchi di accesso a macchinari industriali.
CN108222327B (zh) * 2017-12-29 2023-08-18 广州康普顿至高建材有限公司 一种折叠收纳隔断

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US284741A (en) * 1883-09-11 William h
US2237141A (en) * 1940-01-24 1941-04-01 Etta F Gale Curtain support
GB871910A (en) * 1958-08-21 1961-07-05 K M Steel Products Proprietary Improvements in garage doors
US3378059A (en) * 1966-12-07 1968-04-16 Vertex Inc Actuating linkage for folding doors
JPS5482823A (en) * 1977-12-15 1979-07-02 Matsushita Electric Works Ltd Bellows-type gate
US5062464A (en) * 1991-03-25 1991-11-05 Diesel Kiki Co. Ltd. Vertically collapsible wall partitions
AUPP371998A0 (en) * 1998-05-27 1998-06-18 Cassar, Frank Solid high speed door
US6267169B1 (en) * 2000-03-03 2001-07-31 Railtech Ltd. Vertically folding wall partitions

Also Published As

Publication number Publication date
AU2004201914B2 (en) 2006-03-16
EP1475508A3 (en) 2007-06-27
JP4336614B2 (ja) 2009-09-30
EP1475508A2 (en) 2004-11-10
JP2004332535A (ja) 2004-11-25
CA2465433C (en) 2009-03-17
CA2465433A1 (en) 2004-11-06
AU2004201914A1 (en) 2004-11-25

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