EP3008272B1 - Fire and smoke curtain - Google Patents

Fire and smoke curtain Download PDF

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Publication number
EP3008272B1
EP3008272B1 EP14744618.1A EP14744618A EP3008272B1 EP 3008272 B1 EP3008272 B1 EP 3008272B1 EP 14744618 A EP14744618 A EP 14744618A EP 3008272 B1 EP3008272 B1 EP 3008272B1
Authority
EP
European Patent Office
Prior art keywords
roller
curtain
fire
headbox
smoke barrier
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.)
Active
Application number
EP14744618.1A
Other languages
German (de)
French (fr)
Other versions
EP3008272A1 (en
Inventor
Andrew Paul Cooper
James Martin Reed
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.)
Coopers Fire Ltd
Original Assignee
Coopers Fire Ltd
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 Coopers Fire Ltd filed Critical Coopers Fire Ltd
Publication of EP3008272A1 publication Critical patent/EP3008272A1/en
Application granted granted Critical
Publication of EP3008272B1 publication Critical patent/EP3008272B1/en
Priority to HRP20180247TT priority Critical patent/HRP20180247T1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/12—Hinged dampers
    • A62C2/14—Hinged dampers with two or more blades
    • A62C2/16—Hinged dampers with two or more blades multi-vane roll or fold-up 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
    • E06B9/0692—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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/10—Fire-proof curtains
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/241—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts
    • A62C2/242—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts with fusible links
    • 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
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • 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
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B2009/807—Brakes preventing fast screen movement

Definitions

  • the present invention relates to fire and smoke curtains and more particularly to apparatus for controlling the descent of a curtain from its roller.
  • Fire and smoke curtains when not deployed are wound around a roller.
  • the roller contains a motor, brake and gear box arrangement, with the brake usually ON to hold the curtain up.
  • the brake is released, and the curtain closes, however its decent is controlled by the back emf of the motor.
  • the motor is then used to rewind the curtain after deployment.
  • a fire and/or smoke barrier according to claim 1.
  • the roller, or a shaft supporting the roller extends outside the headbox, and the friction brake comprises a friction element that acts on the roller or the shaft outside the headbox.
  • the friction element is a strap, in particular a wear resistant strap, for example of leather, which acts in tension on the roller or shaft.
  • the strap is attached by a spring to the headbox end, or a wall, to hold the strap in tension.
  • the tension in the strap can be adjusted by adjusting the spring tension, or altering the distance between the spring and its attachment to the headbox end or wall.
  • the strap acting against the roller slows the speed of rotation of the roller, controlling the descent of the curtain. The higher the tension in the spring, the greater the resistance on the roller, the slower the rotational speed and thus slowing the deployment of the curtain.
  • the friction element is provided as a friction pad, acting against the roller or its supporting shaft.
  • the friction pad will be provided on a bar, which is attached to the wall or headbox end via a strut.
  • the pad can be urged against the roller by a spring acting between the strut and the pad, the length of the bar being adjustable by a nut.
  • the curtain will be held in it retracted position by a fusible link.
  • this may be positioned between an outside edge of the headbox and/or the roller extension outside the headbox.
  • the fusible link is fusible between57-150°C.
  • the fusible link may include a fusibale link securing a drive gear on to the roller.
  • the curtain arrangement 1 there shown includes a curtain as such 2, which when not deployed is wound on a roller 4.
  • the roller is provided essentially within a headbox 6, in a ceiling 8.
  • the curtain is provided with a bottom bar 10 which weighs the curtain for descent, but can also be used to close the headbox when the curtain is retracted onto the roller.
  • Side guides 12 are also provided to contain side edges 14 of the curtain. They extend from the headbox 6 on the ceiling to the floor 18, and have in-turned lips (not shown), between which the edges of the curtain are retained.
  • roller is not provided with a motor, gearbox and brake arrangement, which generally maintain the curtain in the retracted position and also control the descent of the curtain on deployment.
  • the curtain is held in its retracted position on the roller, by a fusible link 20.
  • An extension 22 of the roller 2 is provided extending out of the headbox 6.
  • the fusible link 20 is provided between the outside of the headbox and the extension 22 of the roller.
  • a peg 24 mounted on the headbox 6 holds one portion 26 of the fusible link, while the other portion 28 of the fusible link is connected to the extension 22.
  • These portions are held together by a material 30 having a low melting point range typically between 57-150°C. This acts to hold the curtain on the roller under normal condition, preventing rotation of the roller within the headbox, but on sufficient temperature rise, the material 30 will melt, releasing the portions 26, 28 of the fusible link, allowing rotation of the roller and deployment of the curtain.
  • a frictional force is provided to resist rotation of the roller 2.
  • a strap 34 typically a wear resistant material, for example leather, is provided around the roller, acting against its rotation. The strap is connected at both ends 36, 38, to the headbox 6. At one end 36, the strap is connected to the pin holding 24 holding one portion 26 of the fusible link 20.
  • the strap 34 could alternatively be attached to another peg extending from the headbox.
  • the other end of the strap 38 is attached to a tension spring 40, which is connected to a bolt 42 passing through a strut 44 again extending from the headbox 6.
  • the length of the bolt passing through the strut can be adjusted by turning of the bolt, or a nut 46 on the bolt, which adjusts the tension on the spring 40 and thus the tension in the strap 24.
  • the friction on the roller from the strap acts against rotation of the roller.
  • the weight of the bottom bar overcomes the friction on the roller, which does rotate to deploy the curtain.
  • the speed of rotation is reduced by the friction effect of the strap, thus controlling the speed of deployment of the curtain 2 and bottom bar 10.
  • the speed of descent of the curtain 2 and bottom bar 10 can be adjusted by adjusting the tension in the strap 34, by adjusting the extension of the bolt 42, though the strut 44, by adjusting the nut 46.
  • the curtain 102 thereshown is held in its retracted position by a fusible link 120.
  • the roller 104 is provided with a toothed gear wheel 150.
  • a first portion 126 of the fusible link is attached to a peg 124 extending from the headbox 106.
  • the other portion 128 of the fusible link is connected to the first portion 126 via a material 130 having a low melting point range typically between 57-150°C.
  • This second portion 128 of the fusible link extends between the teeth 152 of the gear wheel 150 prevent rotation thereof and thus rotation of the roller 104, and thus deployment of the curtain.
  • the fusible link will break, releasing the gear wheel, thus allowing the roller to rotate and deploy the curtain.
  • a frictional pad 134 is applied to the roller.
  • the pad is held on a threaded bar 136, which extends through a strut 144 extending from the headbox 106.
  • the extent of the extension of the bar 136 through the strut 144 can be adjusted by a nut 146, and a compression spring 140 is provided on the bar 136 between the friction pad and the strut. This acts to urge the friction pad against the roller 104.
  • the action of the pad 134 against the roller 104 acts to prevent rotation of the roller, and thus to control the descent of the curtain 102 and bottom bar 110.
  • the amount of friction applied to the roller can be adjusted by turning the bolt 146 to adjust the pressure of the pad 134 against the roller.
  • the curtain system 201 thereshown, including a roller 204 having a spring loaded shaft.
  • the spring 234 acts to hold the roller 204 in a particular position, one in which the curtain 202 is fully wound thereon.
  • the strength of the spring is not sufficient to hold the curtain in the wound position, and in the absence of any other force, the curtain would deploy, under the weight of the bottom bar 210.
  • the deployment would be controlled by the spring resisting the rotation of the roller. Thus the descent of the curtain would not be in free fall, but would be slowed.
  • the curtain can be lifted by hand, the spring acting to return the roller to its position effectively taking some of the weight of the curtain and making lifting easier.
  • the roller automatically rolls to its position under the influence of the spring, winding the curtain onto the roller.
  • the curtain can then be held in the retracted position, holding the roller in position, by the retention means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Mechanical Engineering (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Special Wing (AREA)
  • Fire-Extinguishing Compositions (AREA)

Description

  • The present invention relates to fire and smoke curtains and more particularly to apparatus for controlling the descent of a curtain from its roller.
  • Fire and smoke curtains when not deployed are wound around a roller. Typically the roller contains a motor, brake and gear box arrangement, with the brake usually ON to hold the curtain up. In the event of a fire, the brake is released, and the curtain closes, however its decent is controlled by the back emf of the motor. The motor is then used to rewind the curtain after deployment.
  • This arrangement requires a constant power supply to be fed to the roller, which over the lifetime of a curtain can be costly. The documents US 1, 621,951 A1 , US 2006/0124249 A1 , US 2010/0242364 A1 , US 5,743,320 A1 , and US 2005/0039994 A1 show known roll-up fire doors. The object of the present invention is to provide an alternative arrangement for controlling the descent of a fire or smoke curtain.
  • According to the invention there is provided a fire and/or smoke barrier according to claim 1. Typically the roller, or a shaft supporting the roller, extends outside the headbox, and the friction brake comprises a friction element that acts on the roller or the shaft outside the headbox.
  • Typically the friction element is a strap, in particular a wear resistant strap, for example of leather, which acts in tension on the roller or shaft. Typically the strap is attached by a spring to the headbox end, or a wall, to hold the strap in tension. The tension in the strap can be adjusted by adjusting the spring tension, or altering the distance between the spring and its attachment to the headbox end or wall. In use, on deployment of the curtain, the strap acting against the roller, slows the speed of rotation of the roller, controlling the descent of the curtain. The higher the tension in the spring, the greater the resistance on the roller, the slower the rotational speed and thus slowing the deployment of the curtain.
  • In an alternative, the friction element is provided as a friction pad, acting against the roller or its supporting shaft. Usually the friction pad will be provided on a bar, which is attached to the wall or headbox end via a strut. The pad can be urged against the roller by a spring acting between the strut and the pad, the length of the bar being adjustable by a nut.
  • Typically the curtain will be held in it retracted position by a fusible link. In some embodiments this may be positioned between an outside edge of the headbox and/or the roller extension outside the headbox. The fusible link is fusible between57-150°C. Alternatively the fusible link may include a fusibale link securing a drive gear on to the roller.
  • To help understanding of the invention, a specific embodiment thereof will now be described by way of example and with reference to the accompanying drawings, in which:
    • Figure 1 is a front view of a fire and smoke curtain according to a first embodiment of the present invention;
    • Figure 2 is a scrap side view of the roller of the curtain of Figure 1;
    • Figure 3 is a scrap front view of the roller of Figure 1;
    • Figure 4 is a scrap side view of a roller according to a second embodiment of the invention;
    • Figure 5 is a scrap front view of the roller of Figure 4; and
    • Figure 6 is a perspective view of a fire and smoke curtain with a spring loaded shaft.
  • Preferring to Figure 1, the curtain arrangement 1 there shown includes a curtain as such 2, which when not deployed is wound on a roller 4. The roller is provided essentially within a headbox 6, in a ceiling 8. The curtain is provided with a bottom bar 10 which weighs the curtain for descent, but can also be used to close the headbox when the curtain is retracted onto the roller.
  • Side guides 12 are also provided to contain side edges 14 of the curtain. They extend from the headbox 6 on the ceiling to the floor 18, and have in-turned lips (not shown), between which the edges of the curtain are retained.
  • Unusually the roller is not provided with a motor, gearbox and brake arrangement, which generally maintain the curtain in the retracted position and also control the descent of the curtain on deployment.
  • As shown in Figures 2 and 3, the curtain is held in its retracted position on the roller, by a fusible link 20.
  • An extension 22 of the roller 2 is provided extending out of the headbox 6. The fusible link 20 is provided between the outside of the headbox and the extension 22 of the roller. A peg 24 mounted on the headbox 6 holds one portion 26 of the fusible link, while the other portion 28 of the fusible link is connected to the extension 22. These portions are held together by a material 30 having a low melting point range typically between 57-150°C. This acts to hold the curtain on the roller under normal condition, preventing rotation of the roller within the headbox, but on sufficient temperature rise, the material 30 will melt, releasing the portions 26, 28 of the fusible link, allowing rotation of the roller and deployment of the curtain.
  • On release of the fusible link, the curtain, under the weight of the bottom bar 10, will un-roll from the roller, and descend to the floor. In the absence of any other factor, the bottom bar and curtain could fall rapidly to the floor, which is a potential safe hazard and could harm occupants escaping from the fire, or causing other damage to the surrounding finishes. To control the descent of the curtain and bottom bar, a frictional force is provided to resist rotation of the roller 2. As shown a strap 34, typically a wear resistant material, for example leather, is provided around the roller, acting against its rotation. The strap is connected at both ends 36, 38, to the headbox 6. At one end 36, the strap is connected to the pin holding 24 holding one portion 26 of the fusible link 20. However, the strap 34 could alternatively be attached to another peg extending from the headbox. The other end of the strap 38 is attached to a tension spring 40, which is connected to a bolt 42 passing through a strut 44 again extending from the headbox 6. The length of the bolt passing through the strut can be adjusted by turning of the bolt, or a nut 46 on the bolt, which adjusts the tension on the spring 40 and thus the tension in the strap 24. The friction on the roller from the strap, acts against rotation of the roller. However, on breaking of the fusible link, the weight of the bottom bar overcomes the friction on the roller, which does rotate to deploy the curtain. However, the speed of rotation is reduced by the friction effect of the strap, thus controlling the speed of deployment of the curtain 2 and bottom bar 10. The speed of descent of the curtain 2 and bottom bar 10 can be adjusted by adjusting the tension in the strap 34, by adjusting the extension of the bolt 42, though the strut 44, by adjusting the nut 46.
  • Now turning to Figures 4 and 5, the curtain 102 thereshown is held in its retracted position by a fusible link 120. The roller 104 is provided with a toothed gear wheel 150. A first portion 126 of the fusible link is attached to a peg 124 extending from the headbox 106. The other portion 128 of the fusible link is connected to the first portion 126 via a material 130 having a low melting point range typically between 57-150°C. This second portion 128 of the fusible link extends between the teeth 152 of the gear wheel 150 prevent rotation thereof and thus rotation of the roller 104, and thus deployment of the curtain. However, on sufficient temperature rise, the fusible link will break, releasing the gear wheel, thus allowing the roller to rotate and deploy the curtain.
  • Again a friction force applied to the roller controls the descent of the curtain. As shown a frictional pad 134 is applied to the roller. The pad is held on a threaded bar 136, which extends through a strut 144 extending from the headbox 106. The extent of the extension of the bar 136 through the strut 144 can be adjusted by a nut 146, and a compression spring 140 is provided on the bar 136 between the friction pad and the strut. This acts to urge the friction pad against the roller 104. As described above, the action of the pad 134 against the roller 104 acts to prevent rotation of the roller, and thus to control the descent of the curtain 102 and bottom bar 110. Again the amount of friction applied to the roller can be adjusted by turning the bolt 146 to adjust the pressure of the pad 134 against the roller.
  • Turning now to Figure 6, the curtain system 201 thereshown, including a roller 204 having a spring loaded shaft. The spring 234 acts to hold the roller 204 in a particular position, one in which the curtain 202 is fully wound thereon. However, the strength of the spring is not sufficient to hold the curtain in the wound position, and in the absence of any other force, the curtain would deploy, under the weight of the bottom bar 210. However, the deployment would be controlled by the spring resisting the rotation of the roller. Thus the descent of the curtain would not be in free fall, but would be slowed.
  • Thus other means, for example the fusible links, as described in the previous embodiments, or other means for maintaining the curtain in its retracted or wound position will be required.
  • To rewind the curtain after deployment, the curtain can be lifted by hand, the spring acting to return the roller to its position effectively taking some of the weight of the curtain and making lifting easier. The roller automatically rolls to its position under the influence of the spring, winding the curtain onto the roller. The curtain can then be held in the retracted position, holding the roller in position, by the retention means.
  • The invention is not intended to be restricted to the details of the above-described embodiment. For instance, the fusible link of Figures 5 & 6 could be used with the tension means of Figure 2 & 3 or vice versa.

Claims (9)

  1. A fire and/or smoke barrier (1) comprising:-
    • a headbox (6),
    • a roller (4, 104),
    • a curtain (2), for rolling onto and deployment from the roller,
    • a bottom bar (10), attached to the bottom of the curtain, for weighting the curtain for deployment and
    • a friction brake arranged to brake the roller and slow deployment of the curtain, characterized in that the friction brake comprises a friction element in the form of one of:
    • a strap (34) arranged to act on a shaft or an extension (22) of the roller (4) and attached by a spring (40) to the headbox end, or a wall, to hold the strap in tension or
    • a friction pad (134) arranged to act on a shaft or an extension of the roller (104) and provided on a bar (136), whereby the bar is attached to the wall or headbox end via a strut (144).
  2. A fire and/or smoke barrier as claimed in claim 1, wherein the roller extension (22) extends outside the headbox (6) and wherein the friction element is arranged to act on the roller extension outside the headbox.
  3. A fire and/or smoke barrier as claimed in claim 1 or claim 2 wherein the tension in the strap (34) can be adjusted by adjusting the spring (40) tension.
  4. A fire and/or smoke barrier as claimed in claim 3, wherein the tension in the strap (34) can be adjusted by altering the distance between the spring (40) and its attachment to the headbox end or wall.
  5. A fire and/or smoke barrier as claimed in claim 1 or claim 2, wherein the pad (134) is urged against the roller extension by a spring (140) acting between the strut (144) and the pad, the length of the bar (136) being adjustable by a nut. (146).
  6. A fire and/or smoke barrier as claimed in any preceding claim wherein the curtain (2) is held in its retracted position by a fusible link (20, 120).
  7. A fire and/or smoke barrier as claimed in claim 6, wherein the fusible link (20, 120) is positioned between an outside edge of the headbox and/or the roller extension outside the headbox.
  8. A fire and/or smoke barrier as claimed in claim 6 or claim 7, wherein the fusible link (20, 120) is fusible between 57-150°C.
  9. A fire and/or smoke barrier as claimed in any preceding claim, including a fusible link (20, 120) normally securing a drive gear on to the roller.
EP14744618.1A 2013-06-14 2014-06-02 Fire and smoke curtain Active EP3008272B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HRP20180247TT HRP20180247T1 (en) 2013-06-14 2018-02-08 Fire and smoke curtain

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB1310791.7A GB201310791D0 (en) 2013-06-14 2013-06-14 Fire and smoke curtain
US201361843473P 2013-07-08 2013-07-08
PCT/GB2014/051678 WO2014199126A1 (en) 2013-06-14 2014-06-02 Fire and smoke curtain

Publications (2)

Publication Number Publication Date
EP3008272A1 EP3008272A1 (en) 2016-04-20
EP3008272B1 true EP3008272B1 (en) 2017-11-08

Family

ID=48914704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14744618.1A Active EP3008272B1 (en) 2013-06-14 2014-06-02 Fire and smoke curtain

Country Status (7)

Country Link
EP (1) EP3008272B1 (en)
AU (1) AU2014279913B2 (en)
ES (1) ES2659067T3 (en)
GB (3) GB201310791D0 (en)
HR (1) HRP20180247T1 (en)
PT (1) PT3008272T (en)
WO (1) WO2014199126A1 (en)

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DK3250774T3 (en) * 2015-01-28 2020-05-18 Frinova Gmbh Port, especially fast running port
CN104775737B (en) * 2015-04-18 2016-06-15 重庆宏杰门业有限责任公司 The inorganic super fire resistant roller shutter door of dual-rail dual-curtain
CN106617584B (en) * 2017-01-10 2017-11-14 湖南德荣医疗健康产业有限公司 A kind of medical case apparatus
CA3056251A1 (en) 2017-03-27 2018-10-04 Cornellcookson, Llc Fire rated door
CN108843210A (en) * 2018-07-14 2018-11-20 唐珊珊 A kind of Fireproof door structure
CN108915542A (en) * 2018-07-14 2018-11-30 唐珊珊 A kind of fire resistant doorsets that can cool down door body automatically
CN113304417A (en) * 2021-05-10 2021-08-27 广东良田农林科技有限公司 Be used for forest fire protection device

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US5743320A (en) * 1995-12-29 1998-04-28 Mckeon Rolling Steel Door Company, Inc. Obstruction-responsive brake actuator for fire door or the like
US6484784B1 (en) * 2000-08-24 2002-11-26 Weik, Iii Martin Herman Door controlling device
TWM251925U (en) * 2003-08-21 2004-12-01 Jung-Rung Shie Brake structure for rolling door
JP4468064B2 (en) * 2004-05-10 2010-05-26 三菱電機株式会社 Fire protection screen device
US7448426B2 (en) * 2004-11-29 2008-11-11 Chung-Hsien Hsieh Failsafe door closing device of a fire proof rolling door
US8069896B2 (en) * 2009-03-24 2011-12-06 Alpine Overhead Doors, Inc. Method and apparatus for driving a roller shutter door
US8397787B1 (en) * 2009-04-20 2013-03-19 Overhead Door Corporation Door release mechanism

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Also Published As

Publication number Publication date
PT3008272T (en) 2018-02-13
GB2532615A (en) 2016-05-25
GB201521589D0 (en) 2016-01-20
GB2517041A (en) 2015-02-11
WO2014199126A1 (en) 2014-12-18
GB201310791D0 (en) 2013-07-31
ES2659067T3 (en) 2018-03-13
GB201409732D0 (en) 2014-07-16
AU2014279913B2 (en) 2018-07-05
AU2014279913A1 (en) 2016-01-07
EP3008272A1 (en) 2016-04-20
HRP20180247T1 (en) 2018-03-23

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